New build random freeze lockups

First, let me give some background information on myself.
I've built my own computer before, although it has been about 6 years since my last time doing so. I've never had any issues with building systems before and I've never overclocked.

Now my issue, I recently built a new system using parts recommended in an article on this site. Everything seemed to work fine at first but within a couple days started having random freezes and restarts, sometimes with a BSOD and sometimes not. I'm running on optimized default settings in the bios, no overclocking at all.

I've run memtest86+, about 5 passes, no errors.
When I ran prime95 it will lock up very shortly into the test.
Temps on all four cores never exceed 56 C.

System components:
AMD Athlon II x4 630
MSI 785GM-e65
WD Caviar Black 640GB HDD
4GB Crucial DDR3 (2x2GB)
Antec NSK 3480 Case (with Antec EA 380 PSU)
Windows 7 Home Premium 64bit

I will be running memtest again overnight to see if any errors come up after more passes.

Any help would be greatly appreciated.
6 answers Last reply Best Answer
More about build random freeze lockups
  1. Have you caught the BSOD codes?
  2. It actually most often doesn't go to BSOD. First time it auto reboot, I changed the setting so it wouldn't do that. This is actually a build for my mom and I asked if it did BSOD again to write down any file names or things written in english on the BSOD. Here's what she gave me on the only other time it gave a BSOD:
    STOP: 0X00000050(OXFFFFF900C2212D80,0X016,0FFFFF9600007B300,0X016)

    WIN32K.SYS Address FFFFF96000073300 baseat FFFFF9609, datestamp 4bdc4376

    disable or remove software/hardware
    Bios memory options - chaching/shadowing F8-SafeMode

    Most often when it locks up it either has a blank screen or will freeze the current screen with visual artifacts.

    Also, I have now ran 12 passes of Memtest86+ and it shows no errors.

    Thanks for your time
  3. Best answer
    As you see it might be registry error, memory error or most likely vram error in your case. Maybe it is the integrated on the motherboard that is causing this.
  4. Thank you for your input.

    So what is the next step? Is it time to RMA the mobo?
  5. If it is a registry error it would go away with a repair install of windows. If that does not work RMA the board.
  6. Best answer selected by Semi-comp-newb.
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