do you know what cpu it is? is your computer custom or from a manufactuer (hp, dell)
i know that sometimes the power supply will fail and begin to overload the motherboard. and usually with the cheap power supplies, the entire system will still turn on but its all completely fried. usually the cpu will still survive and so will the ram, but not the motherboard cuz the power supply took the mobo with it when it failed.
Will likely go out and buy a new PSU tomorrow... I presume the CPU is drawing too much current, and this causes the PSU to die. I've done the checklist, and it comes down to, if the CPU isn't getting power it will power up, and stay steady. If the processor is installed, or that twin 12v plug (CPU power PLUG) is plugged in, it will start up, then almost immediately turn off again.
I've pulled RAM, I've done everything I can think of, but no matter what I do, it comes down to the same issue. Either the CPU is fried, or the PSU can't handle the power the CPU is pulling... what do you all think?
Oh ya, it's a custom system somebody built, my guess, 5ish years ago. It hs an ACER MDX something or other motherboard... It is frustrating, I'm thinking it's CPU, not PSU... But if it's possible the PSU isn't able to put out the power for the CPU, causing it to die, that would be the only part that makes sense.
If I unplug the four pin plug by the CPU, and turn it on, it'll fire up. But as soon as I plug in the 4 pin connector, it shuts down, abruptly.
PSU tomorrow I guess..., maybe, or just throw it out, and get my hands on another 'old' PC...
Oh, and it's an AMD Sempron 3000+ CPU... (SDA3000AIO2BX)... Not sure if I could even purchase something to replace this, or if it would be worth it... I'll probably just end up scrapping the unit if the PSU doesn't work, or maybe, i'll just scrap the whole thing, don't want to put $40.00 into something that might not worth, or be worth $50.00....