Putting together a build for a friend, however, I believe the motherboard may have been damaged or was damaged upon my taking part in the build. I assembled the parts, a 430w thermaltake psu, an asus mobo, e5200 intel processor, western digital hard drive, 2 gigs of GSkill, ati hd 4850 gpu and an LG dvd drive.

Posted, gave an error message about cpu fan error, I google it, it seemed to be relatively harmless. While in the bios the computer's signal disappeared, I attempted a reboot to no avail. No error codes, cpu fan stopped spinning. Removed memory, no error code, removed 4850, no error code, case fan connected to the motherboard spins when powered on, motherboard shows green light, no signal detected,

I tested the processor in another rig, and it worked fine, and the cpu fan spun fine. Tested another power supply with said motherboard and the motherboard fan would not spin and it would not post, and no error codes. Is my motherboard dead? Any help would be greatly appreciated. Thanks.

check and recheck the connections on the board, if unsuccessful, make sure you haven t short-circuited the mobo, ...

It sounds like a motherboard issue from what you have said. Try doing everything on the No POST Tutorial.

I've gone ahead and ordered a replacement board, perhaps I ended up short circuiting it, but I feel that is unlikely. I suppose I'll just eat the cost, I tried everything in the No Post, thanks for your help guys.