Hi, i have a computer that died a slow death on my sister. For about a month it would randomly shut down on her, and would not restart for a long interval afterwards. (A number of hours.) Naturally, she couldn't give me any specifics about what she was doing any time the computer shut down. Eventually, it stopped turning on altogether.

When i took the cover off and tried turning the computer on, the CPU fan would spin a few rotations then stop. There were no other signs of life.

I swapped out the PSU and the Mobo. After swapping the mobo, everything *seemed* to work (The fans spin and lights blink) . . . but the monitor still shows nothing. I swapped out the video card, and still nothing. I tried a different monitor, still nothing. I've even tried swapping the ram . . . i'd have tried swapping the CPU if i had an extra laying around, but i don't.

Here is where the status of various parts of the PC:
CPU Fan: working
Mouse: light works and dims when left alone for a while
Keyboard: does not have any working LEDs, when caps/num/scroll lock is pressed, the LEDs do not respond.
CD drives: LEDs work, but won't open or accept CDs
Hard drive LED: constantly on
power LED: not connected to the mobo (hey, i just got lazy, ok?)

If anyone has any ideas on what could be wrong, i'd really appreciate it! Thank you and Peace,
Joe