Random freeze/crash/stutter/BSOD

Hi, I've been having some trouble with my computer lately. It crashes/freezes randomly. The screen is frozen for a couple of minutes and the sound hangs/loops. Mouse and keyboard stops responding, then the screen turns black. Sometimes I get a BSOD, sometimes the screen remains black. This usually happens when the computer has been on for a long time, or if I have a lot of programs running or playing some games (happened twice in PlanetSide 2, once in Battlefield: Bad Company 2, a couple of times in Garry's Mod...). When this happens I have to restart the computer by pressing the power button.

I have set the computer to create minidumps.
Automatically restart is unchecked.
Write debugging information is set to "Small memory dump (256 KB)"
And Small dump directory is set to "%SystemRoot%\Minidump"
But it still doesn't create minidumps. I have checked inside the Windows directory and there is no minidump folder and no .dmp file.

I checked the Event Viewer and found that when my computer is crashing it creates an error with the Event ID 6008 and one with Event ID 1101. And sometimes a warning with the Event ID 219.

Details on 6008:
EventData

21:10:40
‎2012-‎12-‎05


12860


DC070C000300050015000A0028001401DC070C000300050014000A0028001401600900003C000000010000006009000000000000B00400000100000004090000


--------------------------------------------------------------------------------

Binary data:


In Words

0000: 000C07DC 00050003 000A0015 01140028
0008: 000C07DC 00050003 000A0014 01140028
0010: 00000960 0000003C 00000001 00000960
0018: 00000000 000004B0 00000001 00000904


In Bytes

0000: DC 07 0C 00 03 00 05 00 Ü.......
0008: 15 00 0A 00 28 00 14 01 ....(...
0010: DC 07 0C 00 03 00 05 00 Ü.......
0018: 14 00 0A 00 28 00 14 01 ....(...
0020: 60 09 00 00 3C 00 00 00 `...<...
0028: 01 00 00 00 60 09 00 00 ....`...
0030: 00 00 00 00 B0 04 00 00 ....°...
0038: 01 00 00 00 04 09 00 00 ........


Details on 1101:
UserData

- AuditEventsDropped

Reason 0


Details on 219:
- EventData

DriverNameLength 124
DriverName WpdBusEnumRoot\UMB\2&37c186b&0&STORAGE#VOLUME#_??_USBSTOR#DISK&VEN_GENERIC-&PROD_COMPACT_FLASH&REV_1.00#20060413092100000&0#
Status 3221226341
FailureNameLength 14
FailureName \Driver\WUDFRd
Version 0


I ran memtest86 for 8 passes. No errors.
I ran checkdisk. No errors.
I have updated all drivers. Uninstalled and reinstalled display drivers. I even did a clean install of Windows 7.
My temperatures are fine. Everything is <40 degrees celcius.

My computer is an Acer Aspire AM3920. I've had it for 16 months. I replaced the graphics card and the PSU with better ones, but that's 5 months ago. Everything else is stock.
I've never had any trouble with it until now.
I'm running Windows 7 Home Premium SP1 64-bit

PC specs:
CPU: Intel Core i3 2100 @ 3.1Ghz
Motherboard: (No specific brand, I guess. Acer Aspier AM3920 according to CPU-Z)
PSU: Corsair GX600 @ 600W
Graphics: Sapphire Radeon HD 6870 1GB
RAM: 6GB DDR3 (3x Samsung M378B5773CH0-CH9 2GB DDR3 1333MHz)
HDD: (Don't know, but it's 1 TB)

Does anyone know what's causing it to freeze/crash/stutter/BSOD? Is it bad RAM, bad PSU or is it something else?
2 answers Last reply
More about random freeze crash stutter bsod
  1. Could be hardware failure (I am thinking the graphics card). To check, replace the card and see if any more crashes. I had similar issues, as well, and it turned out the graphic card needed replacing.
    Before that, run some graphic-intensive benchmarks (3dMark, for instance) and see what happens.
  2. Alright, I'll try that. Thanks for the answer.

    EDIT:
    I ran 3dMark and Unigine Heaven and it didn't crash.

    EDIT 2:
    I just got a BSOD again. This time was just browsing the internet. The whole Windows process just died. The task bar disappeared. Everything else worked fine, until I tried to Ctrl+Alt+Del. Then the screen went black, and then the monitor lost signal to my computer, and then a BSOD appeared on my screen.
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