I have an E-machine T5026 that all of a sudden would not power on at all. We replaced the 300W PSU with a 480W from Logisys. Still nothing, no fans, no signs of life. Ironically, AFTER the PSU was replaced, I read how to test the old PSU with a paper clip and the green and black pins, and the old PSU powered up like that. I'm wondering if it's the motherboard and how to tell for sure. Nothing looks obviously blown, but I don't know much about motherboards. The mobo LED light is on, but I don't know if that means much.
Here's what I've tried, all to no avail:
1) replace PSU;
2) unseat & re-seat all memory one by one and try powering on with each change
3) disconnecting optical drives, hard drive one by one and try powering on with each change
4) manually bridging the power-on pins with a screwdriver (in case it was just the power button)
Oh - this probably means something - a couple of nights before the PC wouldn't turn on, we heard strange beeps that we couldn't identify - in hindsight those were probably coming from the PC. That PC was always left on, and no one was actually using it when we heard the beeps; it was a day or 2 before someone wanted to use it, but it wouldn't 'wake' and hasn't started since. I'm not sure how many beeps there were, but I think we heard just a couple of long-ish tones, but hours apart. I wish I could remember better.
I know it's an old machine & probably just needs to go. Burner doesn't work anymore; card reader is iffy, etc. I just want to save the HD data. Is it likely still there even if the mobo is shot? Should I just get an SATA/USB Adapter and try to save the data that way?
Thanks in advance and sorry this is so long....I'm just hoping for help!