I tried the switch, and a technician tried a different power supply.

I think my motherboard is fried, although the machine's in getting that checked by a professional, and my grandfather's offered to pay for the repairs O_O

Since I couldn't get it to POST even with everything (RAM and video card included) disconnected, I'm pretty sure it's either the mobo or the CPU, and the CPU is less than three months old.

*curses again that Compu put me in Network+ first instead of A+*