My PC crashes on the login screen, the screen goes black, but the PC stays on. The power button stops working (I can't hold it down to shut it off) so I have to shut the PSU off.
The problem occurs with a pattern too. It crashes every other time and always at the log in screen. So, I can boot up fine, then I boot up and crash at log in, boot up fine, boot up crash at log in... That's the way it happens.
Tests I've Done so Far:
- Removed one stick of RAM. PC Still crashes.
- Removed GPU and left in only one stick of RAM. PC Still crashes. Without the GPU in, right before the PC crashes the monitor distorts heavily and then horizontal fuzzy green lines slowly fade over it before it goes black.
- I ran memtest on the one stick of RAM for 16 hours (3 passes), I had zero errors.
- Also, I was getting help from here, but I was told to move the question over to hardware at this point.
- I don't think Windows is creating a dump file as my PC says that C:\windows\minidump cannot be located.
Things I Did Before the Crashes Started Happening:
- Ran Malware scan and found Broken.OpenCommand, asked on forums and was told to run SecurityCheck.exe, Farbar Service Scanner , AdwCleaner, and Junkware Removal Tool (perhaps something was accidentally cleaned or changed automatically)?
(My computer is clean.)
- I installed AMD Overdrive to use only for monitoring CPU temperatures. I never touched any setting, but I'm wondering if just running the program has automatically changed a setting or BIOS setting.
- The last two pieces of hardware I installed were the PSU (to replace the very bad Logisys one that came with the case) and the graphics card (I have since taken the graphics card out and the problem still occurs).
Motherboard: msi, 760GMA-P34 (FX) series [MS-7641 (v5.1)]
CPU: AMD FX-6300 Vishera 6-Core 3.5GHz
RAM: 8GB Klevv Neo
PSU: Sea Sonic S12II-520Bronze Power supply - 520 Watt
GPU: Zotac GeForce GTX 750 1 GB GDDR5
Case: logisys 368RB
Operating System: Windows 8.1
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Edited by Lxno78, 16 July 2015 - 04:53 PM.