New PC keeps restarting randomly

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KaptainTacticus

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Oct 18, 2014
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So recently I built a new PC featuring a FX 8320 (w/ hyper 212 cooler) gigabyte 970a UD3P mobo, r9 270x gpu, WD black hdd and Evga 500w psu. So after building this rig, I tried to install windows 8.1 which didn't work out very well. Finally, I managed to get it working but for some reason, it randomly restarts. There doesn't seem to be any consistency between the restarts. I also noticed that none of my components are under any kind of load when it happens. I have installed the latest drivers which I thought would fix this but it still happens.
 
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ronintexas

ronintexas

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Have you looked at the Windows logs as to why it is restarting?



Open Event Viewer by clicking the Start button Picture of the Start button, clicking Control Panel, clicking System and Security, clicking Administrative Tools, and then double-clicking Event Viewer.‌ Administrator permission required If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
 
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KaptainTacticus

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I clicked on it and it shows, a few critical errors, a lot of errors and a lot of warnings mostly to do with device setup manager and critical kernal power. Don't really understand what any of it means though :p
 
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KaptainTacticus

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I would try and find out if it didn't keep rebooting before it even finished loading windows........
 
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KaptainTacticus

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Well here is the thing. I was using PC earlier and it managed to run for 20mins sometimes with out restarting. Now, I cant even get a full boot of windows before it crashes/restarts.
 
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Petar Raickovic

Petar Raickovic

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Maybe the cpu temp is high ? u didnt put cooler good. Or Ram memory ?
 
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KaptainTacticus

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Well im using an evo 212 and it was keeping the cpu pretty cool. The ram is also working. I just checked to see whether it perhaps was the evga psu and I put in my cx 430. As it turns out the evga 500w psu was working fine because the pc still kept restarting with corsair cx 430. I also swapped out the gpu and still the same thing. So either, its the mobo or the cpu.
 
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Petar Raickovic

Petar Raickovic

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Try pulling mobo battery out, and try to Reinstall CPU... I mean new Thermal paste and removing cooler + installing again.. if u did all that and still.. then it's the Mobo or cpu like u said Good luck :)
 
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KaptainTacticus

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So just finished rebuilding the entire PC and of course it still has the same problem. Seeing as I used my FX 8320 before, I assume it is the motherboard which was brand new. Gonna return it and see if a new board is the answer.
 
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KaptainTacticus

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So reading reviews on Newegg revealed that the Gigabyte ga 970A-UD3P is a bit hit and miss. Some people get a good board, some are not so lucky. If I had seen this before I bought mine I would have probably have chosen differently. I just hope the replacement works.
 
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KaptainTacticus

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Update-
So got my replacement board and still the same issue. It turns out the ram is to blame. This system will not run stably at 1600mhz. I must down-clock the ram to 1333mhz for it to work. This exact same thing happened with my old gigabyte 78lmt but I never figured out what I needed to change to run the 1600mhz run well.
 
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