Memory Not Recognized by Windows

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apbruno

apbruno

Honorable
Oct 10, 2013
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10,510
This seems to be a very common general problem, though I have yet to find a solution to my specific circumstance.

I recently installed new RAM in my PC, upgrading from 2gb to 4gb, 4 x 1. My MB has 4 slots, and max RAM is 4. After doing this, I installed Win XP x64 so I could utilize all my RAM.

Unfortunately, Windows only recognizes 3 GB. My BIOS and CPU-Z both report 4 GB. I ran memtest86 with zero errors.

My computer is a DELL Optiplex gx280, my BIOS is up to date.

I'm hoping someone can help me find answers I've not been able to after hours of searching. Thanks.

 
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apbruno

apbruno

Honorable
Oct 10, 2013
8
0
10,510


I'll have to look into how much memory onboard memory is using, but I don't think it is affecting the number reported by Windows because when I had 2 gb installed, it reported the full 2.
 
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apbruno

apbruno

Honorable
Oct 10, 2013
8
0
10,510


No, it didn't. I installed 4 gigs, and it only showed up as 3. I was hoping for 3.5, which prompted me to switch to x64.
 
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apbruno

apbruno

Honorable
Oct 10, 2013
8
0
10,510


Yeah, unfortuantely, my BIOS doesn't support memory remapping.
 
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