I had this PC given to me with the recovery disks. I have tried starting it as it was given to me. It came up to the log in screen (don't have the previous user's password offhand). It sat there for a while and then the PC shutdown on it's own.
Every time it shuts down like this (seemingly randomly) the power light on the front of the machine is the only thing on and it blinks. 3 seconds on, 3 seconds off. Pushing/holding the power button does nothing, no response from the CD ROM drive or any other part of the machine at this point.
I have tried using the recovery disks, sometimes I get to the third disk in the process before it "randomly" shuts down. Length of time to shutdown is unpredictable.
I've tried removing the CMOS/BIOS battery for a reset, no effect. I have NOT tried replacing the battery... yet.
CPU fan is running when machine is on, power supply fan is also running, main housing fan also running, everything feels cool as machine runs, no overheating as far as I can tell.
I've removed/cleaned the RAM modules (they were in fine shape). I have also blown out the machine (dust). I've looked everything over inside for any kind of damage, loose wires, etc. I also inspected the capacitors for bulging/leaking, everything was ok.
I am now at a lose at this point. Why does the machine keep turning off to the blinking green light of death? Any ideas/suggestions?