Only 3.25 of 4 GB of RAM recognized.... why?

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msonberg

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I just installed 2 more sticks of RAM in my system. How can I figure out why only 3.25 are being recognized?

Also, the first time I booted back up I got a message saying something about assuming the slowest speed of 533 Mhz.... press enter to continue.

Maybe that helps.

I'm using: OCZ DDR2 6400 RAM. All 4 sticks are the same brand.
My MB is an Intel D955XBK.
 

msonberg

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I just looked up on microsoft's website and it says that the limit is 4GB for a 32 bit system using winxp.
 

vistashen

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May 2, 2009
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Probably the remaining amount of RAM is shared for your video adapter.
Enter bios setup and verify the video share memory.
 

crjdriver

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I just looked up on microsoft's website and it says that the limit is 4GB for a 32 bit system using winxp.
Did you miss the part about memory being reserved for things like video card, etc? If you have a 1gig video card, that can limit the amount of total ram the system "Sees" to 3gig or even less.

As I posted, it is normal. If you want more ram, then install a 64bit ver of vista.

To add further, a 32bit os can "See" a total of 4gig. You must include all of the memory ie video memory, what is used by other add-in cards, etc.
 

msonberg

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Apr 7, 2004
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126
Very helpful info. Thanks very much. I'll look into the amount of RAM on the video card. I feel like it was 512... but can't remember.
 
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