XP Reports HALF as much Memory?

Gigabyte, mushkin / Gbyte p-35
February 20, 2009 at 16:39:22
Specs: Windows XP, E4500 @ 2.2GHz
I had 2 GB of DDR2 in my Gigabyte P35 MoBo. I recently installed 4 more GB of matching DDR2. At boot up post time it reports:

"6290368K MEMORY"

Or 6GB as you'd expect. It also says 6GB in BIOS. But in Windows XP it only reports:

"3.25GB of RAM"

Where did the other half of the memory go? Does the fact that the MoBo has a Core 2 Duo processor installed half the memory for each core?


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February 20, 2009 at 16:49:32
No, Win XP can't use more than 3 gigs and will report less than installed. You'd need to move Vista x64 (I believe) to use 6 gigs of ram.

Who in their right mind would ever need more than 640K of RAM!?
Bill Gates, 1981

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February 20, 2009 at 17:37:37

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