Computer Freezes Up at Random Intervals, Requires Restart

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MatrixBetaTester

Honorable
Jan 22, 2015
13
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10,510
Hi, recently my custom PC has been freezing at random times. The screen freezes as if a screenshot was taken and it just sits there until I hit the reset button. When I press the reset button it takes about 10 seconds to actually reset. This freezing happens any time from 40 minutes to 27 hours (usually less than an hour or two though) after boot. However, I have run for almost 40 hours in safe mode so it seems to work in safe mode. This happens when it's sitting at idle, not doing anything at all. I also ran a three instances of Memtest at once for a coverage of 1600% each with no errors whatsoever so it doesn't seem to be RAM. Any ideas? Do you think it's power? I know my PSU is sort of old and crappy but I want to try whatever else I can before I go and buy a new one. I know I ought to buy a new one anyways but I also want to know if possibly (but hopefully not) anything else is broken. If so, I might just hold off on replacing things for now. Anyways thanks in advance for any help.

Specs:
-Intel i5-3570k @ stock
-Sapphire AMD Radeon 7850 @ 1050/1450MHz
-Asus P8Z77-V Motherboard
-8gb Mushkin RAM
-460w Cooler Master PSU
-120gb ADATA SSD (boot)
-1tb Seagate HDD (storage)
-Windows 7 Ultimate
 
Solution
D
last time my pc freezing, it was the bad ram, and importantly, my ram did pass the ram test ,but still cause the issue.
I dont know how confident you are on your ram, just my personal experience, you may wanna check on ram. Switch new rams will screen the ram issue.
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MatrixBetaTester

Honorable
Jan 22, 2015
13
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10,510


Here are the last entries in the event viewer last night when it last crashed. It crashed around 1:15am and the last entry was at 12:42am. To be honest I am not that familiar with the event viewer; is there anything I should look for? And in terms of updates, I actually hadn't used the computer literally at all since August. As far as I remember it was fine then (I would remember if it wasn't). I used it again starting around the end of December and so yes I installed a bunch of updates at that time. This problem started to occur shortly after that I believe. I didn't notice it right away though. I believe the first time was shortly after New Year's. I also updated to the Crimson Drivers but have since gone back to the Catalyst 15.11 ones in an attempt to fix this issue (I used DDU in safe mode to uninstall the others). But that hasn't helped as it crashed again overnight as I mentioned. And as far as I know, I don't have any viruses, no. When the computer is functioning normally before it freezes, it runs perfectly, even for demanding tasks like games.

Image: http://imgur.com/wupp1Ht

Edit: I did some digging in the Reliability History and found out something I had forgotten, when I first turned on the computer after all that time it crashed. It only reports that "Windows did not shut down properly" and no more information unfortunately. Anyways, therefore it's unlikely it's a software issue as nothing software could have changed in those months where I didn't use it. I remember when that happened the computer wouldn't boot and the GPU fans spun up to full. It was really weird. So what does this point to? An issue with the GPU? Somehow during that time it got messed up? Or could it be PSU? Motherboard? What do you think?
 
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davout777

Reputable
Jan 14, 2015
173
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4,690
last time my pc freezing, it was the bad ram, and importantly, my ram did pass the ram test ,but still cause the issue.
I dont know how confident you are on your ram, just my personal experience, you may wanna check on ram. Switch new rams will screen the ram issue.
 
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