Quote from Bolimomo:
How did you get your screen display?
I think you need to systematically trouble-shoot the problem.
1. When you power up, can you get into BIOS? (That's before booting the OS)
2. If so, can you boot the OS?
3. If so, can you run your application?
When did you get that weird screen?
Quote from dtrader98:
If you happen to have another computer handy, you could TRY to add the drive as a secondary and
1st) see if you can access the drive itself off your 2nd computer, problem free; in addition, run scans with malaware or another good AV, maybe combofix.
2nd) If that is good, try literally rebooting off that drive in the 2nd computer (can select via BIOS).
If it's all good there, you have at least eliminated the software side for the most part. Also, you can look for the sign with another monitor and/or swap out video driver card.
If you get through all that, then likely you MB is hosed.
Quote from DataCruncher:
for reference, how old is the hardware?
After unplugging from wall outlets, inspect the inside of the computer tower for dust, loose connections, heat damage, and anything that looks unusual. Discharge your body's static electricity before touching any sensitive parts. I would also prepare to backup any data on that machine in any way possible.