Posted 30 March 2011 - 12:54 PM
First, some info on my computer (or the last working setup):
AMD Athlon 64 X2 5600
Gigabyte ma78gm-us2h mobo
Hitachi 320GB IDE HDD
HP DVD Burner
Radeon HD 4670 1GB DDR3
OCZ 500w PSU
Windows XP 32-bit SP3
About a week ago I started getting notifications from my antivirus that it was blocking attempts to open a webpage. After doing some searching it seemed that the website was related to some trojan (don't remember which one). I glanced over some info on how to remove it, didn't really follow the directions in order, deleted some registry entries (I know, I know), and ran a quick system scan with Avast. It came back negative, but I noticed Avast had a scanner that runs before Windows starts up; so I enabled that and shut down the computer.
The next day I turned it on and it hung at "Verifying DMI Pool Data". I looked in the BIOS and my hard drive wasn't detected. Tried different cables, still nothing. My DVD burner still showed up. Eventually my hard drive showed up on the list, not sure what changed though. Still was hanging at the same place. I cleared the CMOS in BIOS and with the jumper- this had no effect. Updated the BIOS - no effect.
At this point I took it to Best Buy and had them look at it. They played around in the BIOS, tried different cables, but couldn't locate the issue- I'd have to pay $70 for them to diagnose it or $200 to fix it. The guy suggested the hard drive was probably going out, and mine was old and low capacity, so I bought a 1TB Western Digital Caviar Black.
Installed that (and it was recognized in BIOS), and put my Windows XP disk in, but it just said something like "Insert Boot Disk and Press Any Key". I tried a few other XP disks that I've...found over the years. Same thing. Put in an old CD-ROM drive (lol) and it booted from the first XP disk. When I went to install it though, it said that no hard drive was installed (though the WD was still showing up in BIOS and the POST screen).
At this point, I said screw it and bought a new motherboard- an MSI 785gtm-e45. Installed that last night. I'm still getting a similar issue- The BIOS screen shows up (and my drives are recognized) and then I just get a black screen with a blinking _. Since then I've tried clearing the CMOS, every combination of drives and cables, different RAM, different PSU, but I can't get past this screen.
The only constant throughout this whole thing has been the CPU. Could this be the problem? Is there something blatantly obvious that I'm missing? What should I do from here?
Getting notifications of blocked activity from antivirus.
Delete some registry entries.
System hangs at "Verifying DMI Pool Data"
Not recognizing hard drive.
Replace everything but CPU.
Still hangs after POST.