The maximum amount of memory on a Dell Inspiron e1505 / 6400

February 5, 2010 at 4:25 pm 6 comments

Dell states that the maximum capacity for a Dell Inspiron e1505 (and its clone 6400) is 2 Gb (1 x 2Gb). Several people online have stated that they have managed to install 4Gb (2 x 2Gb). However, many complain that they only get about 3.3 Gb of memory even when they are using 64-bit OS like Vista, Window 7 or Linux.

Actually even a 32-bit machine can address a maxmium of 4 Gb (2 to the power of 32). However, you don’t get the full 4 Gb because part of it is mapped to the ROM,. I/O devices, and other hardware. If you use a 64-bit OS, it’s suppose to remap the memory address so you get the full memory space. The problem is that the e1505 BIOS does not support memory remapping, so even if you install a 64-bit OS, your Dell e1505 will not give you the maximum 4 Gb. I don’t know if this is because of the BIOS or if the Intel 945 chipset that e1505 is just too old to support memory remapping, but this Microsoft article seems to state that you need a later chipset.

So save your money, don’t get 4 Gb for your Dell. The 4 Gb will work with your Dell e1505. You just won’t the full capacity no matter what OS you use.


Entry filed under: Laptop.

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6 Comments Add your own

  • 1. af  |  August 13, 2012 at 7:20 am

    This is the only place on the web where I finally found the correct explanation. Thank you! Looks like after 6 years my E1505 is finally topping out and it may be time to upgrade. But it sure has been a great laptop.

  • 2. fergus61  |  November 8, 2012 at 6:28 pm

    Installing 4 to get 3.3 is still an improvement over 2.

  • 3. Noel  |  January 28, 2013 at 2:13 pm

    thanks for the information – at least found some clear explanations for my good old dell E1510!

  • 4. kerville  |  July 25, 2013 at 7:42 pm

    Like other posts. This def. cleared up a lot of questions.

  • 5. Jo Mama  |  August 7, 2016 at 8:05 am

    I like turtles!

  • 6. Jhon Doe  |  January 20, 2018 at 1:36 pm

    i got 8 gb


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