Windows 7 see's 6Gb RAM, 4 usable

[Disturbedguy]

That's the normal slot layout restrictions - even described in the manual

Yup, I know, but i thought id be thorough.

[t3chguy]

first question 32 or 64 bit, 32 only sees up to 3-4GB, and are you using onboard graphics,?? if yes then the BIOS is reserving the other 2GB for the GPU sometimes even when not in use, so just go into BIOS and disable onboard GPU if you don't use it...

[kalniel]

first question 32 or 64 bit

Welcome to the forums, good to see new posters trying to be helpful even if the threads are very old. If you read the first post however, you'll see he definitely already answered that!