Specs: Dell Studio 540 desktop, about 7 years old, 6 GB Ram, Windows 7 Professional, two hard drives, one for the OS and programs, the other for my data (all data backed up), 430w power supply, dual monitors, ATI Radeon HD3600 Video Card.
Computer worked fine until it didn't. I leave the computer on 24/7 but power down the monitors when I'm not using it. I restart maybe once or twice a week to clear stuff or when I update.
This time I restarted the computer after adjusting settings on one of the monitors due to the other one having to go in for repairs.
The power light came on. The hard drive activity light came on for about 6 seconds then shut off and nothing else happened, though the power light stayed on until I turned it off. All the fans work and I can feel the hard drives vibrating (I already know that doesn't mean much). The monitor works (it's only a few months old) and the only thing is an image on the screen saying "No signal." But that stands to reason since the computer is not getting far enough to send one.
My knowledge level is (I suppose) intermediate. I have replaced power supplies and video cards without issues, set up routers and software, restored other computers when they crashed.
I found some troubleshooting guides online and have accomplished the following:
1 - I used a multi-tester to test the power supply voltage to all the plugs (I have the power supply manual with the specs) and all the voltages were to specs.
2 - I pulled the CMOS 3v battery (CR 2032) and tested it the multi-meter. It read 2.35v. Looked it up and learned that anything below 2.6v was bad. Bought new battery, tested out at 3+v, and installed it. No luck.
3 - I pulled the video card and the memory and reseated them. Still no luck.
At this point the online troubleshooting guides seem to be sending me around in circles so I'm hoping to get some advice here about what to do next.
If you think I should get a motherboard diagnostic (POST) card, please recommend one. There are a few on Amazon, reasonably priced and I get free shipping with my Prime membership.
On the lighter side, I have been talking about getting a new computer lately so maybe my computer decided to do a Bartlett Finchley on me.
Thanks all, for any help you can provide.
Edited by heavydude, 13 July 2016 - 06:31 PM.