256mb ddr ram shows in windows as 226mb why???

guys

in my system the memory is 256MB DDr.I am using win xp OS.there control panel,system the ram is shown as 226mb.why is that.
i checked that with some of my friends pc and for all it shows 256 if they are using 256mb.

in my bios it shows availabel memory 256mb.
any problem with my ram?

shane
shane200575Asked:
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CallandorConnect With a Mentor Commented:
Do you have a video adapter that uses main memory?  Look in the BIOS, it sounds like 32MB got reserved.
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_Commented:
What he said.
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shane200575Author Commented:

yep u r right thx
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JERRYBSAYSCommented:
ALSO, if you have integrated video or integrated other items they probably are using the other 30mb of memory. So it will only show the 226mb. I hope this helps.
Jerry
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