Computer completely freezes at random

Gigabyte / Ep45-ds5
January 17, 2011 at 11:45:08
Specs: Windows 7, 2.4 GHz / 8190 MB
Recently my motherboard died and I have since RMA'ed it and got an exact replacement. I've rebuilt the PC and everything seems to be working fine again with the same install of Windows 7.

However, the system completely freezes (mouse doesn't move) at complete random and I need to power it off and on again. I can't seem to find the cause as it happens at anytime with no warning. Most of the time it freezes on startup during the boot-up screen but can sometimes go for many hours and then suddenly freeze with no apparent cause. The boot-up part can get very annoying and it can sometimes take 10+ tries until it finally decides to boot-up fully again.

I thought it may have been the memory but I've had only one stick in and it still does it. I haven't run a memory test yet though as it can take a long time. Sometimes the video card can screw up and I get graphics corruption but this just seemed to be a driver problem. Strangely it has never, ever frozen up while playing 3D intensive games. Just now though I exited a game and it crashed at the desktop and wouldn't boot up again after many attempts.

I'm thinking it could be the HDD but I don't know. It just seems to freeze when it feels like it. I'm worried that it could be the motherboard again as that'd be a big kick in the nuts after the hassle of getting a replacement.


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#1
January 17, 2011 at 12:00:39
First step is run MEMtest on at least 1 stick just to verify its integrity. Then test HD. Check your event logs just to see if anything is happening just prior to the computer locking up. Im willing to bet theres a loose connection between something, recheck all internal connections (Grounded) just to be sure.

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#2
January 17, 2011 at 15:36:54
Mine (I built my own computer as well) did this exact same thing after downloading the newest geforce drivers. If you have an video ATI card then I am wasting your time but if not, then try backing up your computer to the 196-series geforce drivers and see if your desk top freezes stops. Good luck.

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#3
January 17, 2011 at 22:35:21
try a disk check too and check fix damaged sectors, it will take a while, also if you have the idea that it is the disk create a new partition, install win 7 on the new partition and boot into it see if you have the same issue, then upgrade your drivers to the current ones in use.
although if your system runs normally for most of the time, memory still sticks in my mind as a culprit. have you tried each stick in every slot, you may have a slot issue.

i hate computers!
but cant help myself....


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#4
January 18, 2011 at 15:15:19
After another restart the graphics drivers played up again and the screen froze but the computer still seamed to be functioning as the HDD light was blinking. I've uninstalled the drivers, ran driver sweeper and re-downloaded them again.

It's been stable so far but I'll have to give it a while before I can call it the all clear.


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