I was given this light brown and light ornge colored M.B. that says P4SD(or O)-LA. Any idea what it came out of?not much else on it (it has a : mPGA478B).I need to look up the manual on it.HELP! PLEASE!

Looks like an ASUS brand board out of an HP PC.
http://h10025.www1.hp.com/ewfrf/wc/d...name=c00022505
I also found these PDF manuals:
http://www.elhvb.com/mboards/OEM/HP/...ale_manual.pdf
http://www.elhvb.com/mboards/OEM/HP/...ord_manual.pdf

Both boards seem to be the same except the "Yale" version has an updated power design to support 3.2+ Ghz processors. I do not know how to identify which of the two boards you have.