On Sunday morning, we had a series of power fluctuations due to high winds knocking transformers offline.
Well, as soon as those started hitting, I reached over and turned off the PSU to try to protect the motherboard I have. However, when I turned the PSU back on. I discovered that the motherboard would not restart, yet the USB ports were working as I had a USB powered light hooked to the front (non-integrated) and the USB ports on the back of the computer (integrated).
I replaced the PSU with a backup I had sitting around, hoping that maybe the PSU has been partially fried. However, that proved to not be the problem because the motherboard still had the same symptoms. Attempting a CMOS reset, also was no good
Then, I removed pretty much all the optional components (DVD-RW, a 2 GB stick, nVidia based video card) and, still no reaction from the motherboard, save for the USB ports.
I left it unplugged overnight on Sunday-Monday, and, that did not help, either. Finally, I physocally removed the motherboard from the case and examined every one of those transistors to the best of my ability and none were damaged.
Here's the specs for the computer:
Motherboard: MSI model g31tm-p21
4 GB of DDR2 800 MhZ
Original integrated Audio
nVidia eVGA 640 (2gb)
Socket 775 Pentium D 3.00 GhZ with HT
AMI Bios (V 4.7)