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Possible Duplicate:
Windows XP and RAM 3.5GB+

I've recently installed 4GB of RAM on my server, which is running Windows XP SP2 32-bit and My Computer showed that only 3.37GB were installed. After digging Google for a bit, I couldn't find anything helpful, but I do remember reading a post in a forum regarding the motherboard using 640MB of RAM. Digging in my own BIOS, I've also found that my motherboard has also reserved that amount for its self.

Why does my motherboard reserve this memory and how can I tune it down to say 128MB?

Community
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Tom
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1 Answers1

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It's not your motherboard. It's the fact that you have a 32-bit OS. 32-bit addressing will only allow Windows to see ~3.3GB of memory. If you want to see beyond that, you would need a 64-bit OS.

Glen Y.
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