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Compaq EVO N1020V Not reporting RAM correctly

I have a compaq evo n1020v running windows XP Pro. I upgraded the ram recently but it's not showing up correctly. I added 1gb of ddr2100 but it's showing up as 480mb. Any idea what the hang up could be? I know it will take a full gig of ram because I checked before I bought it. Thanks!

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  • Paul Atchison Sep 24, 2009

    1. It is a 1gb chip of pc2100.
    2. It is not pc2-2100.
    3. It is NOT a 512mb chip.

    This is not the first time I had this problem. When I first went looking for RAM, the guys at Best Buy told me pc2700 was backwards compatible and I tried that first. I bought 2 512mb chips of pc2700 and with both installed, it only showed 480mb of ram. I tried removing the ram and reseating it, but to no avail. I returned the ram to Best Buy as defective and went to FRY's where I purchased this 1GB of pc2100. And now here I am.

  • Just Gort
    Just Gort May 11, 2010

    Sounds like it's a 512MB memory module. Clarify: 1. You are using only one memory module (1GB PC2100). No other memory modules are installed in the laptop. 2. The memory is not PC2-2100 (read the module, please) 3. The new memory chip is not a 512MB chip.

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  • 1,187 Answers

Your AGP video card is using up 512MB.
In the BIOS, look at the video "frame" or "memory" allocated to it and change it from whatever it is (512MBB?) to a lower amount and reboot and check memeory again.
Once this is successful, fill-in any empty memory slots with the old memory modules.

Posted on Sep 24, 2009

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  • Master
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This sounds as thought he RAM is faulty.

You need to have installed 2 x 512 MB DDR 266 SoDIMMs and not 1 x SoDIMM.

If you have placed 1 x 1Gb SoDIMM in ther EVO this would account for you only seeing 480Mb of RAM.

Posted on Sep 24, 2009

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I came across this thread while trying to solve my similar problem. I am a tech that cleans up operating systems and fine tunes performance.

One of the tricks I use is to run MSCONFIG and set the boot options to max memory and max number of processors to speed up the boot time.

If you do that, and then add additional RAM to your system, it will remain stuck on the max memory you previously specified in the boot options.

Uncheck the max memory option, restart your computer, and problem will be solved.

Posted on Apr 14, 2010

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