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I realize there are many questions out there similar to this, but the standard answers of "you're on 32-bit" and "it's reserved for graphics" don't seem to apply. I'm not sure how to verify the latter because I'm not on-site with access to the BIOS, but 3 GB seems quite steep for graphics reservation. Also according to http://support.microsoft.com/kb/978610 we should have a 192 GB limit on this box, since it's 64-bit Win7 Pro. Yet we get less than half of the 8 GB physical showing up as usable. In Resource Monitor, it says 3081MB are hardware reserved. How can I reduce this, or at least find out which hardware is reserving it?

Also I have an NVIDIA QuadroFX 580, so it shouldn't use any system RAM.

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  • 3
    Have you confirmed each module is working by itself?
    – Ramhound
    Commented Nov 22, 2013 at 15:11
  • @Ramhound, No, I haven't yet but I could next time I'm on-site. But wouldn't that make it say "3.99 installed"? I thought when a module fails it fails entirely, not losing 1/4 of its capacity, and "hardware reserving" the other 3/4.
    – Kev
    Commented Nov 22, 2013 at 15:18
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    The fact its saying 7GB installed and not 8GB itself is odd. More information about the hardware might be nice. The fact you are able to use 3.99GB tells me you actually do have a 64-bit Windows operating system installed because if it was 32-bit you wouldn't even be able ( out of the box ) use that amount. It would be closer to 3.25GB-3.50GB.
    – Ramhound
    Commented Nov 22, 2013 at 15:23
  • I sadly have the same issue too, Win7 x64, where my 4GB are showing 1.99GB usable. Apparently many have found the "Memory Remap" feature in the BIOS to be the culprate. This wasn't the case for me, but worth taking a check if you can manage to get access to the BIOS en.kioskea.net/forum/…
    – root
    Commented Nov 22, 2013 at 15:29
  • I can provide more information about the hardware, what are you looking for specifically?
    – Kev
    Commented Nov 22, 2013 at 15:29

1 Answer 1

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Reseat the RAM, and per the docs for that model of computer, you need matching/symmetrical RAM modules.

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