The chip shows Intel 810. the only thing stamped on the mobo is "TUW-AM".Right above where the mobo is stamped, there is a small chip with a sticker on it that reads "twah2".Above the video connector there is a sticker that reads "TUW-AM(YELLOWSTONE-WGAS)/HP".
This morning I tried to boot the PC and it would not even give me post beeps, I unplugged everything from the mobo except CPU, memory, and USB connectors, and it posted.( I didn't mean to leave USB connected, just missed it when unplugging all else)
I plugged everything back in with the exception of the suspected serial port, and the PC booted into Windows.
I am beginning to believe that the mobo might just need to be replaced.Am I wrong in this? Any and all input appreciated.