Abit ip-95 only see 3gigs of 4gigs?

Well hello everyone I'm new here. I have searched for quite awhile with no solution yet. I have an abit ip-95 mobo which supports up to 4gigs ddr2 ram. I have xp x64 so it should work. There was a recent bios update so now it posts 4096mb at startup, so it should be working fine. I have tried changing the maxmem settings and things like that but they revert to 3072mb. I searched my bios settings for anything about memory remap but nothing that I can find. Maybe it's under a different name? but tried everything.

I have tried disabling everything video, sound and things like that didn't help either. The memory is 2x2048 pny which works fine. Everything I have fully supports the x64 that I can tell. I also remember something about if hibernate is unavailable it will read over 4gigs? I still have the checkbox to do the hibernation, but not on. Any help or advise would be well appreciated.

do you have onboard video? Some video cards I have seen also will borrow from system memory, this would result in the system seeing only 3 gigs if 1 gig was being borrowed by the graphics system.
I have never heard about the hibernation thing, I hibernate my pc all the time and I am running X64. I have all 4 gigs available.

Well, that may be just as well because although Microsoft supports x64, a lot of manufacturers don't and never will at this point. As much as I like it, XP64 will prolly not be on my pc for very long.
You could do a dual boot with WIN7 RC and see how that works.

This chipset does not support memory remapping so you'll never be able to use all 4GB, even with 64-bit OS. Its a hard limit of the chipset.