Is it worth upgrading the CPU on Acer 3680-2633?

September 3, 2007 at 5:19 pm 100 comments

The Acer 3680-2633 comes with a Celeron M 520 CPU. The name Celeron have been synonymous with trash. On many forum there are articles asking if they can upgrade the processor.

Can you upgrade the processor?

Well, the question you should ask is if it can be upgraded at all. It is generally more difficult to upgrade a CPU on a laptop than a desktop. The CPU is hard to get to, and the cooling system may be design to cool a particular processor. Still, if your laptop comes in multiple configuration (your model supports Celeron M to Core 2 Duo), it may be possible to upgrade. Your upgrade path will depend on a couple of factors:

  1. Your CPU is a Zip socket, and there is another CPU that fit into this socket.
  2. Your chipset supports the CPU.
  3. Your BIOS can recognize the new CPU.

In the case of the Acer 3680, the CPU is socketed. I ran a program call PC Wizard to get the chipset. It indicate that the Acer 3680-2633 chipset is an Intel 943GML. A quick search through the Intel website indicate that it supports only Celeron M.

Can we upgrade to another Celeron M? According to Wikipedia, there is a Celeron M 530 that is faster than the 520. A quick check through google indicates that the CPU is selling for about $125 currently. However, the CPU is only 0.08 Ghz faster than the 520, so I am doubtful that you will gain much performance from the upgrade. The other processors that 943 GML support are the Celeron ULV, which are even slower than 520 and don’t even share the same socket.

Is Celeron M really a dog?

The first Celeron was release with virtually no secondary cache. As a result, its performance was so poor that the name become associated with cheap and slow. The Celeron M are essentially single core of the mobile Intel chips with half the cache. Currently, there are 3 series of Celeron M.

Celeron M Series Based On Difference
3xx Pentium M (Dothan Core) 1/2 Cache, no Speedstep
4xx Core Duo (Yonah Core) 1/2 Cache, no Speedstep
5xx Core 2 Duo (Merom Core) 1/2 Cache, no Speedstep, no virtualization

Performance-wise, the Celeron M is actually fairly close to its non-Celeron brother. Recently, another poster wrote an article benchmarking a Celeron M vs. its Pentium M brother.

However, the Celeron M’s biggest flaw as a mobile cpu is a lack of speedstep. This may explain the Acer laptop’s terrible 2 hour battery life.

Increasing performance using Dual Channel

One interesting difference between the 520 series and the old Pentium M is the effect of dual channel. On the Pentium M architecture, having dual channel has virtually no effect on performance as shown in the following article. However, when I ran SuperPI under single channel and dual channel, I definitely got improve results.

Memory Configuration SuperPI Benchmark 2M
1 DIMM, 512 Mb 2:19
2 DIMM, 2 Gb 1:39

As you can see, there is a 29% improvement. Granted, the test isn’t very through or scientific, but it appears upgrading your laptop to two matching pair of RAM will improve performance and RAM is cheap at the moment.


Entry filed under: Hardware, Laptop.

Laptop Battery Life: internal vs external battery Using a cloning program to resize Vmware virtual disk files

100 Comments Add your own

  • 1. David  |  September 4, 2007 at 4:33 pm

    I happened to stumble across this entry while doing some searching on my own. I have a Toshiba A135-S4656 with a Celeron M 520. I had come to the same conclusion as you after reading about the 943GML. But there is hope!

    1) Intel now offers a mid-point between Celeron and Core processors, simply called “Pentium Dual-Core”. These processors are based on the Core architecture and support speedstep. The equivalent to the Celeron M 520 would be the T2060, which is a Pentium Dual-Core at 533FSB and 12x multiplier, just like the Celeron M. Pentium Dual-Cores run all the way up to 2 Ghz. Toshiba offers 943GML-based laptops with Pentium Dual-Core, for example the A135-S4677.

    2) Someone here:
    reports successfully upgrading a Celeron to a Core Solo in a HP laptop based on a 940GML, which is also supposedly Celeron “locked”. Various other people in the thread report the T2XXX series do NOT work for them, however that may simply be due to needing a BIOS update (if one exists).

    I’ll probably be trying either a T2XXX update, or possibly a T52XX (Core 2 Duo) update, depending on how risky I’m feeling. But the chipset is definitely NOT locked to Celerons.

  • 2. paulsiu  |  September 4, 2007 at 7:22 pm


    Interesting, though a T1350 is around $250 about 1/2 the price of the laptop. If you get it to work, let me know.

  • 3. Nacho  |  September 5, 2007 at 12:19 pm

    Hi there.
    I’m thinking in getting one of those laptops (acer 3680, celeron m520), cause is a low-price laptop here in Chile.
    But i have a doubt: if I use Debian, what architecture I must install on it, i386 or ia64? I ask for, because I want to download the dvd .iso’s, and they are really big…
    Thanks !
    PS: great journal, keep it going.

  • 4. paulsiu  |  September 5, 2007 at 8:31 pm


    i386 was what I downloaded. Ia64 will probably work, but you may get driver issues. Flash will not work in 64-bit without some fudging.

    In my opinion, 64-bit isn’t all that useful at the moment unless you have something more specialized.

  • 5. Nacho  |  September 5, 2007 at 10:11 pm

    Thank you very much paulsiu…
    I figure it out some hours ago, 64 bit isn’t that useful right now.
    Take care, bytes!

  • 6. David  |  September 14, 2007 at 6:50 pm

    Well, I’m back, running on my laptop with a Core 2 Duo T5200 CPU. The install went fine, there was a tense moment as I waited for the BIOS to show up for the first time, and then…there it was!

    After installing, the options for “Enable Multiple Cores” and “Dynamic CPU speed” showed up in my BIOS. I checked beforehand to ensure that my BIOS had CPU support for the T5200 (by checking other models that used the same for what CPU they used.)

    Seems to be working without a hitch!

  • 7. Albert  |  September 15, 2007 at 8:38 am

    I too have gotten a Core 2 Duo t5200 to work in place of my Celeron M 520. However, when I boot up, I can no longer adjust the brightness of the lcd screen! It will not brighten nor dim. The backlight is fine and the screen is lit up about half away all the time, but the FN+ bright up and down buttons don’t do anything anymore. I tried to put the celeron back in, and same issue!

    I believe it is a problem with the bios settings, but I cannot access the voltage or cpu settings b/c the laptop is an Acer. All i get in the bios is “information” and I cannot change any settings. The model I have is actually Acer Aspire 3680-2633.

    Assuming I did not damage the screen or ribbon connector cable during the disassembling process, does anyone have a suggestion as to what I can do?

    The computer runs perfectly with the new cpu- just no brightness adjustment anymore.


    • 8. Bernald  |  May 20, 2011 at 12:08 am

      man that chipset won’t stand a T5200 (i know the post i old but just to inform…) that little guy works at FSB 667, the chipset would stand just 533 so u should have selected this CPU as the most powerful based on your specs… hope it will inform u about something =P

  • 9. JyYyM  |  September 18, 2007 at 1:29 pm

    Hi Albert, just to clarify, you do have an Acer 3680 right? which Bios Version do you have installed right now?

  • 10. Albert CHan  |  September 20, 2007 at 5:13 pm

    I have the 1.3505 bios… the machine originally came with the 1.32 version…. I did the flash bios download directly from Acer. I was looking for a way to dl a generic non- acer bios to try to access the voltage settings, but I couldn’t find any info….

    Any suggestions on what I could do?

  • 11. Albert  |  September 20, 2007 at 5:54 pm

    Yes- I have the Acer 3680-2633 Model

  • 12. paulsiu  |  September 20, 2007 at 8:10 pm

    Albert, I don’t think downloading a generic BIOS is a good idea since it may brick your laptop. Have you look at rmclock, which is a software program that allow you to change voltage and multpler? I used it on my laptop to run it at a lower voltage (though it did not work with Celeron M).

  • 13. Pel  |  September 27, 2007 at 4:33 pm

    Albert what is your 3680-2633 chipset model? I have the same Acer model as yours and from Sissoft Sandra my chipset reads 955XM/945GM/PM/GMS/940GML Express.

    I’m assuming mine is the 940GLM Express. Anyhow I was wondering if I could also upgrade it to the t5200? also where did you get the t5200? thanks in adavance.

  • 14. Albert  |  October 1, 2007 at 10:52 pm

    Alright, after days of messing around and using RmClock to play with voltage settings, here’s what I have discovered:

    1. It is definitely NOT a voltage problem unless somehow putting a new cpu in forced the motherboard/ circuits to permanently throttle the juice going to the screen.

    2. The screen seems to be the issue- I believe it’s probably the inverter or something with the backlight, although the screen is brigther than if it had a broken backlight.

    3. RMclock did work with the t5200 as opposed to the Celeron m 520, and I was able to control the settings to get about another 30-45 minutes of battery life. The battery meter was always reading incorrectly though- probably since the board was designed specifically for the Celeron.

    4. Performance with the t5200 is noticeably better than the celeron. I personally think it was worth the dim screen that I must have somehow upset during the disassembly process, although it does suck.

    5. Pel- My chipset says 945gm/ 940gml. I got the t5200 on ebay for about 50 bucks. Just warning though- if you don’t know what you’re doing, you might screw up during the disassembly. It’s not hard to… Be patient and use a digital camera to take pictures every few screws/ part you remove.

    Thanks for the help to everyone who responded!

  • 15. Simon  |  October 3, 2007 at 8:49 pm

    I have a acer travelmate 2480 with the 940gml and bios v1.3505…..i’ve tried to upgrade the celeron cpu to a t2060… seem it wont boot….it power up with a black screen….
    Is there a waiting time for the boot to com or is that immediate?

    Any idea?

  • 16. David  |  October 4, 2007 at 11:30 am


    Are you sure that BIOS is used with another Acer laptop that supports T2060? The BIOS needs support for any CPU that it is going to use, and the symptoms you’re describing sound like other issues people have had with unsupported CPU’s.

  • 17. Simon  |  October 4, 2007 at 1:35 pm

    So i need the bios of aspire 5570z that use the t2060 and the same board as mine but i cant find it anywhere.

    If someone find it please tell me 🙂

    Thanks David

  • 18. Simon  |  October 4, 2007 at 7:50 pm

    Apparently i have the same bios as the aspire 5570z that use the t2060 … the bios is not a problem…maybe the chipset 940gml dont like the t2060 or the cpu i got is bad?

    If any of you know if the 940gml support the pentium dual core please tell me…

    i know that many t2060 use the 943gml, what is the difference beetween 940 and 943 ???

    please help me 🙂

  • 19. Pel  |  October 6, 2007 at 3:36 pm

    Well I’ve successfully upgraded to t5200 with my 3680-2633. Everything is working smoothly. Check out this link to see the bench and comparison.

    This is interesting but Sisoft Sandra and CPUz sees my laptop as 940GML. But during the upgrade I looked at the chipset it says 943GML.

  • 20. Simon  |  October 6, 2007 at 5:55 pm

    Ok ….so i think i will have to wait for acer to distribute a bios update for the aspire 5570……

  • 21. simon  |  October 10, 2007 at 5:43 pm

    Ok….i did search and i found that it is possible to put the t2060 in the travelmate 2480 by using the bios of the aspire 5570z. Since i dont have this bios and no bios update are currently available for the 5570z..all i have to do is wait or maybe someone can send me his bios 🙂

    I will let you know when it will works.

  • 22. Albert  |  October 11, 2007 at 10:41 pm

    Pel- Did you modify any hardware settings in the bios? Or were you able to? Did you do anything besides swap the cpu?

    I think I’ve also ruled out an inverter/ backlight problem. I opened the screen and it (the inverter) does not appear to be damaged. Still a dim screen despite all I’ve done.

  • 23. milu  |  October 14, 2007 at 6:39 pm

    one question.

    Albert and Pel described CPU M 520, how about if i have the same model of laptop ( I mean asipre 3683N WXCI) but i’ve got Celeron M 430. M520 has got 1,66 Ghz clock, My M 430 1,73Ghz

    Can I Use another type of DUAL 2 CORE CPU. Like T5300 ?
    How dou You think?

  • 24. Spik  |  October 23, 2007 at 8:19 am

    Acer have a new laptop in the extensia EX5210 which runs a Celeron M 520 CPU … Ive been reading the above and it looks like the chipset and bios are the determining factors in success or failure.. has anyone had any experiance with the above model ?

  • 25. Spik  |  October 23, 2007 at 8:45 am

    From my reserch it appears to use the Intel 943GML Chipset

  • 26. Andrea  |  October 25, 2007 at 5:27 pm

    I have the 3680 and Everest Pro tells me that the chipset is the 943GML. But… the actual cpu is a M440 (Yonah core, 1.86 Ghz @533). The bios version is 1.3503, but i think i could update to 1.3505. Do you think it could work ?

  • 27. Andrea  |  October 25, 2007 at 5:28 pm

    Whoops… obviously i was refering about updating cpu to T5200 !

  • 28. Marco  |  October 26, 2007 at 10:45 am

    I have the acer Extensa 5210 notebook with Celeron 520. Has anyone had experience with this model? I think that is the same of 3680.

  • 29. Andrea  |  October 30, 2007 at 2:07 pm

    Updated the Celeron M440 of my 3680 with a T5200. Anything worked smoothly, at first boot Vista installed drivers for the new cpu, it rebooted and anything seems fine. Some bench:

    SuperPi 1M, M440 37s, T5200 35 s
    SuperPi 2M, M440 1’32”, T5200 1’22”.
    Battery life, max saving enabled: M440 2 h, T5200 3 h: 30′

  • 30. BK  |  October 31, 2007 at 6:07 am


    i had the Acer Extensa 5210 with a Celeron M 520 @ 1,6GHz…

    The Chipset ist a 943GML, can i put a Dual Core CPU in this Notebook ?

    The CoreDuo/Dore2Duo had so much of different Sockets, i dont know which CPU i must buy.


  • 31. Andrea  |  October 31, 2007 at 12:34 pm

    I think your main board supports mostly all the dual core cpu with socket M (it is the common socket of Yonah and Merom families) and fsb @533.
    So, i think you could go with a Merom T5200 as i did (i am quite happy with it), or with T2050, T2060, T2080, T2130, T2250, T2450, and probably more. Some are Yonah, some Merom. I would go for a Merom, because slighlty better performance at same frequency, and 64 bit support.

  • 32. BK  |  November 1, 2007 at 5:41 pm


    thx for your answer, i think my favorites ar T5200/T5300.

    They are 5-15% faster than a Yonah @ the same clock and need nearls the same energy.

  • 33. Khalid  |  November 1, 2007 at 5:58 pm

    I have a Acer Aspire 3620 with a Celeron M (not sure if its a 430 or not) but i’m in dire need of making it preform faster. I have upgraded my ram which has helped, but after talking to a couple of people they have recommended me to upgrade the CPU if possible.

    Can the Core 2 Duo T5200 CPU work with a my laptop? And how easy will it be to take out the old CPU?

    Thank you for all the information

  • 34. Andrea  |  November 1, 2007 at 6:04 pm

    You wont regret updating from the Celeron. I notice now with the T5200 (the T5300 obviously would be even better) that the computer is more responsive at commands, that the shell is cooler with the fan working much less… and obviously a much better battery life (from 100-120 minutes to easily 180 minutes and more).
    When you’ll decide to upgrade, i can give you some hints about disassembling the laptop (it is easy but you need to open it almost competely).

  • 35. Andrea  |  November 1, 2007 at 6:09 pm

    Download and run the latest Everest Professional, it will tell you the EXACT chipset your pc mounts, and not a generic i945-940.
    If it reports i945, you can go with any Yonah-Merom up to 667 fsb, if it reports i943, it is good the answer i gave to BK.

  • 36. Khalid  |  November 2, 2007 at 12:24 pm

    The everest Pro cost $20 too expensive but i downloaded something else and it gave me this information.

    Mobile Intel(R) 82915GM/GMS/910GML Express Chipset family

    Does this mean anything?

    Thank you for all the help

  • 37. Andrea  |  November 2, 2007 at 4:38 pm

    I think that Everest Ultimate can be downloaded for free in trial version. Anyway, if your chipset is of the i915-i910 family, your pc seems based on a P4 architecture. Do a check again, those programs easily report also the CPU mounted.

  • 38. spik4  |  November 2, 2007 at 6:05 pm

    When upgrading the CPU its important to remember to match the clock multipliers … in the 1.6 core 2 duo (t5200) it is x12.. This is a perfect match for the 1.6 Celeron M 520… as all the settings are the same and no changes are required …. In a laptop I’m not sure if adjustments to the multiplier is as easy as it is in a desk top … in my opinion its better to play it safe and match the Mhz of the original CPU … That way you wont waste your money on something that may not work… The other things to remember are that the chip set must match the intended CPU Upgrade and the Bios supports the new CPU … if all these things are in your favour then it should work.

  • 39. Khalid  |  November 2, 2007 at 8:29 pm

    Thanks, i downloaded the free trial version and it gives a ton of information, anyways my Chipset is an i915. Is there anything i can do with this in terms of upgrading??
    Celeron M370
    1.50 GHz

  • 40. spik4  |  November 3, 2007 at 9:21 am

    The bios on a Extensa 5210 is PhoenixTrusted Core TM 1398 V1.07 … haven’t yet been able to determin if this supports a Core 2 Duo 1.6Mhz T5200 CPU …. every thing else seems to be in its favor .. (Chip Set – Intel 943GML & Socket )… if the bios checks out all should be ok.

  • 41. Andrea  |  November 3, 2007 at 12:38 pm

    In theory, you could put a Pentium M @400 fsb (Banias), they run faster than your Celeron and give much better battery life. But… better asking around, if someone already did it.

    I agree that a T5200 is a perfect replacement for a M520, but i think that in actual mainboards what really matters is having same fsb, being the multiplier locked and embedded in the cpu. For example my M440 ran at 1,86 Ghz and i fitted the 1,6 Ghz T5200 without any problem.

  • 42. spik4  |  November 4, 2007 at 12:48 am

    Agree with the FSB.. The multiplier would depend on the M/B Plug and play ability which is I believe is calculated through the chipset & the bios ability to accept a higher level CPU… Playing it safe would be to match the Mhz as no adjustment is required by either. Just being conservative I guess… it would be just my luck to fork out for a better CPU and find the thing didn’t work … its really Speedstep ( Longer Battery Life) that I’m after and the second core for a bit more performance… if I wanted a speed machine, Buying a Laptop with only Intel® Graphics Media Accelerator (GMA) would have been a real mistake.. Can’t turn shit into sugar as the say … but you can improve the taste a little..
    You haven’t had any experience with the Bios I detailed above have you … it appears to be my final deciding denominator.

  • 43. spik4  |  November 4, 2007 at 5:23 am

    Ok. After a bit of surfing I found an Acer site which contains all the Bios, Manual & Driver files for about ever Acer Laptop you can think of… To answer my own question.. The Ex 5620 appears to use the same Bios as the Ex 5210 … If the EX5620 Supports Core 2 Duo which it does then the EX 5210 Bios should too. For those interested here is the site.

    You comments got me thinking..(A bad move).. The T5200 / Celeron 520 uses a 533MHz FSB while the memory on the Ex 5210 uses 667 MHz FSB. Am I therefore correct in saying the M/B uses 667 FSB which opens up a whole new range of faster CPU’s ????

  • 44. Andrea  |  November 4, 2007 at 8:42 am

    My AS 3680 has too Samsung Pc2-5300 ram capable of 667, back compatible with 533. I think just because Acer buys them in stock, and they fit most of the range of actual products. The bottle neck is still the chipset, and if is the i943 only a 533 cpu will run fine (check, all 667 ones use the i945). Anyway, a good @533 cpu with speedstep is still a great update, i dont know your Extensa but i would bet it supports them as the 3680 does (btw before upgrading i mailed Acer asking if upgrading my Celeron was possible, and they answered NO). I think the i943 board is mostly the same for their low end range, and it covers all the socket M @533 cpus (Celeron, Dual Core, Core 2 Duo). You’ll get a great laptop for the price, not just sugared shit 😉

  • 45. Val  |  November 15, 2007 at 1:43 pm

    Andrea, did you upgrade your bios?

    I have an aspire 3680-2682 (Celeron M440), but i don’t know which bios version I have installed. the 4xx versions of the celerons are NOT merom, but you successfully installed a merom based cpu (T5200 is merom, i think)

    anyway, acer has bios version 1.3505 available, but i don’t know if I’ve got that version or an earlier one. I suppose I need to restart and check the bios…

    Thanks, I can’t wait for better battery life and quietness!


  • 46. Andrea  |  November 15, 2007 at 8:21 pm

    Yes i did the bios upgrade, and probably i did it even without wishing to change the cpu. You can check your bios version entering in it, clicking F2 when the white screen with Acer label appears in the first seconds of boot. I am not sure if this upgrade was necessary (anyway the upgrade takes only a minute and can be easily done in Vista) but for sure the T5200 works fine with the 1.3505 bios version.

  • 47. simon  |  November 17, 2007 at 8:58 pm

    t2060 not working with 940gml…
    Someone can confirm that the t1350 will work with this chipset?

  • 48. Andrea  |  November 19, 2007 at 8:24 am

    I know almost for sure that the 940 doesnt support dual core cpu, some persons with a HP had success to make work some dual core on their 940 machine, only disabling the second core in the bios (Acer doesnt have this option in bios, anyway i think that isnt worth having a dual core cpu and make it run as a single core). I think that the T1350 could work in your laptop, but this is just my opinion. Good luck.

  • 49. Kevin Njeru  |  November 20, 2007 at 6:42 am

    Hey Andrea do you think you can give me some info on disassembling my Acer 3680-2633. I’ve read that it works with the T5200 Core Duo chips so I want to upgrade. I’m in the process of buying one from ebay for $81. Also how good is the battery life and is there a noticeable expansion in speed and possibly gaming capabilities?

    PS: Do you know a cheaper place to purchase the chip?

  • 50. Andrea  |  November 20, 2007 at 5:51 pm

    I think 81 $ for the T5200 is a fair price, i am in Italy and i bought it from a person in a forum for 60 euro. I see cheaper prices sometimes in Ebay, but i dont know the price when the bid closes… about battery life, as i wrote in some posts before, with the T5200 you can easily have 1 hour more. The speed in normal use isnt amazingly faster than the Celeron, but the cpu runs cooler and you can notice a general better response at the commands. About specific benchmarks, you can find in the Internet comparing tables between Celeron, T2xxx and T5xxx.
    Disassembling the 3680 for upgrading the cpu… well, you have almost to disassemble it completely. Remove all the screws in the bottom side (including the ones under the bay of hd that has to be removed, the flat screw under the hd too, and if i remember well, also under the bay of memory modules. Then the 2 screws behind the screen, so that you will able to remove the panel of the power and other buttons (the screen has to be put flat, parallel to the keyboard). When removed it, you can remove the keyboard that hides more screws. Unscrew them, so that you should should finally separe the 2 shells. The cpu is under the heatsink with a fan, obviously you will also remove it. Better putting some thermal compound on the new cpu. As you see i dont remember pefectly all the steps having to be done, but work slowly, put the screws in order when you remove them, take photos of any step so it will be easier to assemble it again. Perfect would be finding the service manual of this model, anyway with patience i did without it and anything went fine. Good luck !

  • 51. Kevin Njeru  |  November 20, 2007 at 9:47 pm

    Sorry to bother you again, but I have one last question. Is the T5200 the only supported core duo for the 3680-2633?

  • 52. Andrea  |  November 21, 2007 at 6:03 am

    I think also the T5250 (1.5 Ghz) and the T5300 (1.7). Intel is making several @533 models, just the T5200 seems the easier to find on the market, and as i know so far, the only succesfully tested on the i943 chipset.

  • 53. Tim  |  December 14, 2007 at 6:16 pm

    thanks for the article.

    I have an Acer Aspire 3682 WXMI (AEN05.031) with a Celeron M 420 @ 1.6Ghz

    Recently I decided to upgrade the CPU, but couldn’t find any info about my model.

    PC Wizard 2008 says that I have a i943GML/i940GML

    I also know that I have a ata (not sata) 60gb drive and a pci-e NIC.

    Can you tell me please, is the upgrage to a core2duo t5200 possible?


  • 54. Tim  |  December 14, 2007 at 6:26 pm

    I’m not sure which P/N is correct…the one on the laptop and the box is LX.AEN05.031
    but the one on the local Acer website ( says that the P/N is LX.AZL05.004

    I’m really confused about al this.

  • 55. Marco  |  December 15, 2007 at 6:19 am

    I have update succesfully my Acer Extensa 5210(celeron m520) with Intel Core Duo T5200!
    It work wonderful and perfectly.
    Pro: Battery life and best performance.

  • 56. Tim  |  December 17, 2007 at 4:14 pm

    Can anyone help me??

  • 57. Kevin Njeru  |  December 27, 2007 at 10:52 am

    Woohoo. I sucessfully upgrade my 3680-2633 Celeron M 520 to a Core 2 Duo T5300 @1.73 GHZ. This things is so quite and cool when I first started it up I wondered if it was broken because the fan wasn’t loud as usual. Everything booted great and now it is bearable to have it on my lap. Now all I have to do is install the C2D hotfix for XP and I should be well on my way. Thanks Andrea for all your help. The T5300 only cost me $75 on ebay.

  • 58. Chris  |  January 19, 2008 at 6:39 pm

    I installed a T5300 1.73ghz C2D in my 940GML Chipset. Im typing on it right now and it was a “flawless” install.

    Highly recommend the Core 2 Duo upgrade, cram your laptop full of RAM and dont forget a nice 7200rpm 16mb cache Hard Drive to top it off 🙂

  • 59. JR  |  January 20, 2008 at 3:28 pm

    I have been looking around to upgrade my acer 3680 and I see that it is possible. The only thing that I haven’t seen is whether or not the C2Ds are seen by the bios and the OS as dual cores or singles. Does it read a single or dual core?


  • 60. jthunter  |  January 23, 2008 at 12:55 pm


    I have an ACER Aspire-5310 laptop, with an Intel Celeron M520.
    PC wizard says the chipset is Intel i943/940GML.
    I would like to know it is possible to change the cpu to core 2 duo, and how.
    The bios version is 1.40.
    (fsb: 533mhz)


  • 61. RonB  |  January 25, 2008 at 6:11 pm


    I have been watching this Journal since October 07. I purchased an Acer 3690-2316 with a Celeron M430 last spring from BestBuy
    Initiallly upgraded the Ram from 512 to 2 Gig to improve performance. I have now installed a T2080 which I bought on Ebay for $45 . Everything went well and encountered no glitches.
    The improved performance is remarkable.

    I tried to determine chipset with both Everest and Cpuz and got mixed readings. Everst read 940gml when I logged on as me and 945gm when i logged on under my wife’s profile. Cpuz read 940 in both instances. A utility called BelArc gave me a result of 943gml and I believe was the most accurate.

    It was worth the change and thank you posters for all the valuble information and observations.

  • 62. Andrew  |  January 31, 2008 at 12:33 am

    I can’t get to one of the screws beneath the keyboard to get the case apart. I have the 3680-2574. Please help!

  • 63. RonB  |  January 31, 2008 at 2:21 pm

    Andrew Here is a link to a site that has an Acer 3680 service manual – it has a section on disassembling you machine.

    Hope this helps

  • 64. Andrew  |  January 31, 2008 at 10:31 pm

    I finally got the thing apart and installed my T2050 and it doesn’t work! So, I had to disassemble it again to put back the Celeron 420.

    Why didn’t this work?

  • 65. RonB  |  February 1, 2008 at 5:31 pm

    Andrew What o/s are you running? XP, Vista?

    I would reassemble your unit with the Celeron M420 to make sure you haven’t accidently damaged the MB.

    I would go to the Acer support page for the 3680 and make sure you have the lates BIOS. If not download and flash.

    I would then resinstall the T2050 and see what happens? If you have no luck I suspect that it is because you have the 940GML Chipset.

    Then again, you may have bought a bad processor.
    Give it a try

  • 66. Andrew  |  February 1, 2008 at 11:11 pm

    XP Home

    I did upgrade the bios before the swap.

    I put the 420 back in and it works fine.

    I don’t think the CPU is bad but I guess it could be.

    I’m not sure if I have the 940 chipset. Everest and PC Wizard say I have the Intel i943/940GML.

  • 67. RonB  |  February 4, 2008 at 1:55 pm

    I don’t have an answer for your problem however I have tried to find other discussions about upgrading the 3680

    Here us a link to some postings

    Read through the threads and in particular the ones by “Hellbore”

    In one he makes reference to an Acer Bios he flashed that is also used by other Acer models.

    Perhaps you could try to contact he/she through this site.

    Lots of luck

  • 68. Zbyshek  |  February 8, 2008 at 2:39 pm


    Did you replace Celeron M 520 with Core Duo T5200 in Toshiba a135-s4656? What version of bios do you have?

  • 69. TRAY  |  March 1, 2008 at 3:32 am


    I have an ACER Aspire-5310 laptop, with an Intel Celeron M520.
    PC wizard says the chipset is Intel i943/940GML.
    I would like to know it is possible to change the cpu to core 2 duo, and how.
    The bios version is 1.40.
    (fsb: 533mhz)


  • 70. Brendan  |  March 15, 2008 at 7:46 am

    Hi i have a Acer Aspire 3682WXMi RF2720, upgraded to 2GB RAM, it has intel 950 chipset, with Intel Celeron M 420 1.6GHz, is a C2D acceptable?? which one would anyone reccomend… any help would be appreciated..

    heres a link to the exact laptop

    i really wanna get the best out of it. cheers 🙂

  • 71. Pierre  |  April 11, 2008 at 7:04 am

    I have a Aspire 3680 with a Celeron M520, upgraded it to a Intel Pentium Dual Core T2060, no problem so far. I gained about 45 min of battery life. It seems to boot up a tiny bit faster than the Celeron.

  • 72. Zhelyan Panchev  |  April 24, 2008 at 4:26 pm

    gateway mt6223b upgraded to core 2 duo T5200

    I am not sure if it is i943 or i945 although it says i943 in the specs.
    different softwares give different results ie i945/943/940gml, i943/940gm, i945 express chipset and so on.

    running at around 50C, didn’t have to update the bios or anything. easy to upgrade – there is that handy removable pannel on the bottom of the laptop giving access to the CPU and the RAM.

    far better than the celeron m520 it came with; around 2.2h battery

  • 73. Smith_X  |  May 2, 2008 at 2:31 am


    I have a question regards to my laptop. I have a future plan to upgrade T2050 to T7200 but I’m not so sure my laptop mobo can handle that new cpu or not.

    are there any website I can educate further, please?

    I use HP Pavillion DV5227tx, Core Duo 1.60 Ghz

  • 74. Chen Yin  |  May 15, 2008 at 7:57 pm


    I am newb, I have Acer TravelMate 2480-2247with M 410 1.46Ghz, 533MHZ, I want to know which is the 4 best processors could be fit with my notebook? Do i need change my bios and how?


  • 75. Chip  |  June 1, 2008 at 1:28 pm

    My chipset for my Acer shows up in PC Wizard as:

    Intel i943/940GML

    Is this the 943GML Chipset? or a 940GML ?

    Model is Acer 3680-2576
    Current CPU is a 520M Celeron 1.6Ghz
    would like to upgrade to T5200 1.6Ghz Dual 2 Core

  • 76. Chet  |  June 13, 2008 at 2:38 pm

    This provides information on upgrading the 3680 series to faster CPUs. Helped me out a lot!


  • 77. Chip  |  June 15, 2008 at 1:46 pm

    Ok, I managed to do the upgrade and it worked!

    Couple of points you need to know that isn’t mentioned elsewhere.

    when you replace your CPU, DRM (Digital Rights Management) in Windows will not longer work properly , so anything that uses DRM will fail. So… all your licenses for MP3s won’t match your PC and your mp3s or videos will not play. I had problems with Windows Media Player 11 and with IE crashing.

    This is not mentioned anywhere! Be warned!

  • 78. dw  |  June 30, 2008 at 12:15 am

    I had the same problem…Windows Media Player 11 sucks don’t download it ,,if possible ..I had the SAME problem and i didn’t upgrade my cpu yet.
    I got around it by opening mp3 files and video with different players and they worked so there is life after window media
    player 11….. so ….ha ha… to Bill Gates ps Window Media Player 11 don’t take kindly to uninstalling from your puter

  • 79. fauzie  |  July 1, 2008 at 9:32 pm

    Hi All…

    How about Acer aspire 3620…….
    I have a Acer Aspire 3620 with a Celeron M (not sure if its a 430 or not) but i’m in dire need of making it preform faster. I have upgraded my ram which has helped, but after talking to a couple of people they have recommended me to upgrade the CPU if possible.

    Can the Core 2 Duo T5200 CPU work with a my laptop? And how easy will it be to take out the old CPU?

    Thank you for all the information

    (same question with Khalid)

  • 80. Chip  |  July 3, 2008 at 10:54 am

    The first step is to Identify Your Chipset on your ACER. The upgrade to Core 2 Duo CPU requires a 943GML or 945GML chipset. If you have a 940GML, you cannot use the Core 2 Duo CPUs.

    If the back cover for the RAM bay is pulled off on the Ram Bay there is a sticker. The code on the sticker identifies your ACER chipset.

    MB.TEB06.003xxxxx… If it starts with that it is a 940GML
    MB.AZL06xxxxx… If it starts with that it is a 943GML
    MB.TDX06xxxxx… If it starts with that it is a 945GML

    Replacing the CPU requires complete disassembly of the notebook. Everything except taking apart the LCD module is required. Recommended only if you have experience in this type of work!

  • 81. cristi  |  January 15, 2009 at 1:03 pm

    y have aspire 3680 -2682 with celeron m 520 and intel calistoga 945gm/pm cipset wat its the best procesor that its posible to pun on this laptop . pls help , y’m sik of this procesor and his overheating

  • 82. Upgrade Acer Aspire 3680-2633 Laptop CPU | MYBESTLAPTOP  |  January 31, 2009 at 12:28 pm

    […] from: http://www.memory-up.comCost for 2×1Gig PC-5300 is $32.96 USDHelpful Links for 3680 Users:…cer-3680-2833/ Blog that started it All… v1.3505 bios […]

  • 83. koong  |  February 11, 2009 at 1:53 am

    i need full driver 3680

  • 84. dave  |  March 23, 2009 at 12:10 am

    are the processor for pc and notebook same?i have aspire 3683nwxci with celeron m and pc with core 2 duo..can i replace my core 2 duo to my celeron on my notebook?

  • 85. Tim  |  June 16, 2009 at 9:03 am

    I have a Celeron M 410 and i want to replace it.
    My chipset is a Intel Calistoga i945GM/PM.
    And i want to replace the Celeron with a Intel T5200.
    Is this going to work?

  • 86. Jack  |  August 5, 2009 at 9:37 pm

    Tried upgrading Acer 3680 to T5200, have bios 1.3508, physically confirmed 943gm chipset, it did not work. Doesn’t boot, power button lights for a second , then shuts off. Put original Celeron back in, now working again. Big waste of time and money.

  • 87. love acer  |  December 22, 2009 at 11:45 pm

    Acer AOD250-1197 10.1-Inch Blue Netbook
    great netbook, substandard os
    The computer itself is great. I love that its compact and has plenty of battery life. The touchpad is the least annoying of any laptop I’ve ever used. The windows 7 starter operating system, however is not. its a highly abbreviated version created for emerging markets in third world countries. There’s so much lacking. you cant even put up a picture on the desktop background. Save your money and buy the XP version. I wish I did.

  • 88. Anwar  |  January 28, 2010 at 1:40 am

    i succesfully upgraded my Acer Aspire 3684wxmi to C2D T5600 the CPU running at 667Mhz, but memory still at 533Mhz (the memory features cover the 667Mhz)

    as a result semms to be a little less noisy.
    and thats all )))))

    T5600 costed to me appr.$56 (Kazakhstan / Astana)

  • 89. LeeH  |  April 24, 2010 at 2:18 am

    Here are the results from my upgrade, The laptop is a Toshiba A135 S4656 that I bought new at Best Buy in Nov. of 07 and originally had a Hitachi 80gb HDD which failed a year ago and had a Celeron M 520 which I replaced today with a T5200 C2D. The only other thing done was an upgrade from the original 1.20 bios to the newest 1.90 bios and an additional 1gb of memory which I installed right after I purchased it. The computer is quicker that it was but bot noticeably faster except in benchmark scores, I will say one thing though the fan seldom comes on now and it seems to run much cooler but as for battery life it didn’t seem to change much.

    Mainboard : TOSHIBA IAKAA
    Chipset : Intel i943/940GML
    Processor : Intel Core 2 Duo Mobile T5200 @ 1600 MHz
    Physical Memory : 1536 MB
    Video Card : Mobile Intel(R) 945GM Express Chipset Family
    Hard Disk : ST980811AS (80 GB)
    DVD-Rom Drive : TSSTcorp CD/DVDW TS-L632D ATA Device
    Monitor Type : SAMSUNG – 15 inches
    Network Card : AR5007 802.11a/b/g Wireless Network Adapter
    Network Card : RTL8101 PCIe Fast Ethernet Adapter
    Operating System : Windows Vista (TM) Home Basic Home Edition 6.00.6000
    DirectX : Version 10.0
    Windows Performance Index : 2.3
    General Information :
    NorthBridge : Intel i943/940GML
    SouthBridge : 82801GBM (ICH7-M/U) LPC Interface Controller

    NorthBridge Information :
    Architecture : Direct Media Interface (DMI)
    Manufacturer : Intel (Toshiba America Information Systems)
    Codename : Lakeport
    Revision : A3
    Bus Speed : 133 MHz
    FSB Frequency : 532 MHz (QDR)
    FSB max. Support : 667 MHz
    RAM max. Support : DDR2 (667 MHz)

    Memory Information :
    Type : DDR2-SDRAM PC2-4300
    Frequency : 266 MHz
    DRAM/FSB Ratio : 2/1
    Supported Channels : Dual (128-bit)
    Activated Channels : Dual
    ECC Diagnostic : No
    CAS Latency (tCL) : 4 clocks
    RAS to CAS (tRCD) : 4 clocks
    RAS Precharge (tRP) : 4 clocks
    Cycle Time (tRAS) : 12 clocks
    Bank Cycle Time (tRC) : 16 clocks
    Shared Memory (video) : Yes

    General Information :
    Manufacturer : TOSHIBA
    Product : IAKAA
    Version : 1.00
    Serial Number : 0123456789AB
    Support MP : Yes, 2 CPU(s)
    Version MPS : 1.4

    Chassis Information :
    Manufacturer : TOSHIBA
    Type : Notebook
    Version : N/A
    Serial Number : None
    Asset : *

    General Information :
    Product : Satellite A135
    Version : PSAD0U-0N500N

    General Information :
    Real Frequency : 798.02 MHz
    Multiplier : 6x
    Low/High Multiplier : 6x / 12x
    Multiplier Locked : Yes
    Marketing Frequency : 1600.08 MHz

    Front Side Bus Information :
    Bus Speed : 133 MHz
    FSB Frequency : 532 MHz (QDR)
    LFM Frequency : No
    C0 State : Yes

    Initial Frequencies :
    Frequency : 1600 MHz
    Bus Speed : 133.34 MHz (QDR)
    Multiplier : 12x

    Frequency Control :
    Core #1 : 798.01 MHz
    Core #2 : 1596.04 MHz

    Control Clock Frequency :
    Enhanced SpeedStep (EIST) : Yes – Enabled
    C1E – Enhanced Halt Mode : No
    Dynamic FSB : Yes – Disabled
    Dynamic Acceleration (IDA) : No

    Thermal Information :
    Thermal Design Power : 34 W
    Core Power : 16.96 W (estimated)
    Thermal control TM1 : Yes – Enabled
    Thermal control TM2 : Yes – Enabled
    Thermal Control Circuit : Yes
    Digital Thermal Sensor : Yes
    Clock Modulation (ODCM) En… No

    General Information :
    Number of Core : 2 (max. 2)
    Number of Core Enabled : 2
    Number of Threads : 2
    Number of Thread per Core : 1 (max.2)

    • 90. Radu  |  November 16, 2010 at 2:14 pm

      I was thinking of upgrading my Celeron M 410 processor (a HP Compaq nx6310 notebook) this days but I wasn’t sure about what would work with my chipset. I’ve opened up the notebook a couple of day ago and I’ve discovered that the chipset is Intel i940GML (the mainboard is similar in config as LeeH’s). In my latest BIOS version from Compaq it states that it supports T5000s and T7000s processors, but from what I’ve read here 940 has not work with c2d…

      Is it possible to upgrade to a Pentium Dual-Core processor? I found some data on Wiki that say that I can: .

  • 91. Rajan  |  August 12, 2010 at 12:35 pm

    hi can i change my main board & processor into dual core on my acer 5310 laptop or any other way

    replay me my friends……….

  • 92. Simon  |  November 14, 2010 at 3:56 pm

    Just to second that I successfully updated my Extensa 5210 from a Celeron 1.6 to a Core 2 Duo T5200 1.6!

    Got the latest BIOS on the laptop first (don’t know if its essential but a good idea).

  • 93. Radu  |  November 23, 2010 at 3:14 am

    Can anyone clarify something for me: what is the difference between 943gml and 940gml chipsets ?
    I have 940gml (verified visually) chipset on my Hp Compaq nx 6310 notebook; I have Intel Celeron M 410 1.4GHz processor. I would like to upgrade it but as far as I researched only laptops with 943 chipset have been successfully updated to C2D processors. Would I be able to upgrade to a better processor?
    Which one would that be ?

  • 94. LeeH  |  November 23, 2010 at 3:34 pm

    Radu, Mine visually shows 940GML but when I ran a hardware ID util it came back as i943/940GML. I would suggest to run some kind of ID utility and see what info it returns because the 943 and 940 are the same chip set family and if you want specific info on the chip sets go look up the specs on the intel website, That’s what I did prior to upgrading my Toshiba.

  • 95. Radu  |  November 24, 2010 at 5:46 am

    Thank for replying. So you have a 940GML chipset and T5200 C2D Mobile processor that work together… interesting.
    I’ve looked up the specs on Intel site and what I’ve found is that 940GML chipset does not support any other Intel Core platform processors than the Celeron M’s.This is what it says in the datasheet from Intel:
    ” Mobile Intel 940GML Express Chipset Feature Support
    All features supported by Mobile Intel 945GM/945GME Express Chipset shall be supported by Intel 940GML Express Chipset unless noted otherwise below. However, The Mobile 940GML Express Chipset does not include support for External Graphics via a PCIe interface.
    Processor Support:
    • Celeron M processor (Intel Core processor based), Celeron M processor ULV
    • 533-MHz FSB support only

    Mobile Intel 943GML Express Chipset Feature Support
    All features supported by Mobile Intel 940GML Express Chipset shall be supported by Intel 943GML Express Chipset unless noted otherwise below.
    System Memory Support
    • Support for Dual-Channel Interleaved mode of operation
    Internal Graphics
    • 200-MHz Render Clock”
    Note that 945GM/GME support Core Solo, Core Duo, C2D processors.

    The chipset ID softwear programs I’ve used (and the results) are the folowing:
    -SisSandra 2011 (Mobile Intel 955XM/945GM//PM/GMS/940GML);
    -Everest Ultimate Ed. (Mobile Intel Calistoga-GML i940GML/i943GML);
    -HWiNFO32 (Intel 940GML/943GML (Calistoga-GML) + ICH7-M/U);
    -Intel Chipset Identification Utility (Mobile Intel 945GM/GME/PM, 943/940GML/Intel 945GT).

    I’ve visually identified the chipset (opened my laptop) as i940GML. From what I’ve read on forums, only a Core Solo was succesfully running with 940gml chipset.

  • 96. Arpagiator  |  April 18, 2011 at 9:33 am

    Sorry to re-open this but I’m currently in the process of upgrading my own Aspire 3680 ZR1 model. It has the 943GLM chipset..
    After reading this topic, I chose a Intel Pentium T2330 processor..
    Will get back after it’s installed.. wish me luck!

    • 97. me  |  September 24, 2011 at 3:14 pm

      Well Arpagiator, what was the result?

  • 98. brain  |  February 4, 2012 at 8:20 pm

    if you have a acer 3680 with the 943 / 945 chipset you can upgrade to a intel t5200 /t5600/t7200/t7600 processor . all been proven and working ,just make sure you get the latest bios update from the acer website before you install the new processor or the bios wont pick up the processor and you’ll brick your computer follow this link for more info

  • 99. Womens Whitney Mercilus Jersey  |  July 9, 2013 at 5:35 pm

    Update #2: A spokesperson fromnfl jerseys told the Huff Post that the miners are wearing two different sunglasses models and that each one retails for
    $180. Whether you are planning to get one for yourself, just
    make sure you verify that they provide adequate UV ray protection for your eyes,” Baden said, according to three officials with the teams.

  • 100. goldstone77  |  June 6, 2015 at 1:18 pm

    I know this is an old post, but I’m going to try the T7600, with 2 2gb 667mhz memory chips, and a serial-ata 500gb 7200 rpm drive. Had the memory on hand from a damaged laptop, and 500gb HD from a couple year old laptop which I upgraded to a 250gb Samsung SSD. Upgrading my girl friends parents 3680, which I just did a reformat. Burned an image of the new drive with macrium reflect software. Restored the image to the 500gb hard drive. I just installed the drives in my desktop make the image and do the restore. I bought the t7600 off of ebay for $39.99 free shipping from California. should be delivered by june 12th. I’ll let you know what happens, already upgraded the bios. Right now it will only recognize 1 2gb memory module.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

Trackback this post  |  Subscribe to the comments via RSS Feed


September 2007
« Aug   Oct »

Most Recent Posts

%d bloggers like this: