Someone dropped off a broken computer about 15 days ago. The only symptoms were that it didn't boot-BIOS/no-cpu-fan but greem-led-on-mobo was on.
I swapped out the PSU, etc and end result was that the CPU fan was toast (didn't spin on a 3-wire header) and so was a gfx card (tried to POST on the VGA of a working box - PCIe card)
Got it working and sent it back - put in a new fan) - unfortunately today, the box is dead again. This time: the fan's fine, but the mobo cpu-fan won't spin at all (no boot-bios) no matter what i do (swapped the PSU, ram, etc). Green mobo-led is on (same as before).
I tested the cpu-fan (4-wire) on a 3-wire header and the fan spun up but that doesn't exclude the possibility of a the ctrl line on the fan being damaged.
- What should I do?
- Would it be reasonably honest to tell him to buy a new pc? I'll have to junk the PSU/mobo/cpu/ and possibly ram too.
- How do i exclude power issues (bad smps, wall power)? How likely is this to be the cause of his misfortune?
(it's not a cmos issue, new battery, flushed cmos etc)