Asus GTX 780 Causing Computer to Restart/Power Off and Not Power Back On?

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Hello everyone,

So, recently I've been having an issue with my computer where it will randomly shut down and restart. Also, if I power the computer off, sometimes it simply will not power back on. I've been going through alot of threads trying to figure this thing out and so far it seems the most likely culprits are a faulty GPU, PSU, or RAM. I should mention that the random restarts only occur when I am playing games, such as League of Legends or World of Warcraft.

That isn't all, however. I've also noticed about two months ago that while playing these games, before the random restarts and inability to power on the computer, my screen would turn black for about three to five seconds and suddenly re-appear as if nothing happened. I'd also see a notice in the bottom right hand of the corner of my screen that says that the video card crashed, but was recovered.

I've tried removing two sticks of RAM and launching games. When the computer crashed, I swapped those two sticks our with the other two and tried again, only to watch the computer crash one more. The temperature on my GPU was approximately 40 degrees C when it crashed immediately after starting World of Warcraft. I tried turning the memory clock down as far as I could, as well as the GPU boost clock. I've also tried turning up the fan speed. The card does not make any strange noises of any kind. Still, the games crashed. My CPU runs at 35 degrees C at rest approximately 55-60 degrees C under a load. I use a Hyper 212 Evo as the heat sink. It is unlikely that overheating are the issues. I ran a windows memory diagnostic on all four sticks of RAM under basic and standard modes and found no errors.

I am running Windows 7 with 32 GB of SD-DDR3 RAM, a 4790K CPU, z97 Gaming mobo, and a Rosewill 750W PSU. I am convinced it is my GPU that is causing these issues as the computer only seems to crash when starting games, but I want to try and figure it out before I go spending any unnecessary money. What other information could I provide that may assist? I look forward to your responses, everyone. Thank you.
 
Solution
Mugglensu1984


After sifting through various forums and troubleshooting sites what I gathered is this:

Sometimes the capacitors on the PSU goes bad (for whatever reason) and the PSU can't bear a heavy load on the 12V rail. In order to protect itself and the rest of the PC, the PSU shuts itself down spontaneously.
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M

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Jul 4, 2015
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4,510
I've tried removing two sticks of RAM and launching games. When the computer crashed, I swapped those two sticks our with the other two and tried again, only to watch the computer crash one more.
Click to expand...

I should add that I just finished running memtest on each individual stick of RAM for over one hour, at least 1 to 2 passes. No errors found. I'm pretty sure it isn't my RAM. I hear alot of possibilities that it may be the PSU, but with the issues my GPU was having, it makes me wonder. Maybe the PSU is failing to provide power to the GPU, which has caused those blackout screens and random restarts?
 
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I installed all of the latest graphics updates and windows updates. I also made a change to the registry using a Microsoft Fixit tool from this URL:

http://support.microsoft.com/kb/2665946

That seems to have greatly reduced the number of times my computer shuts down and restarts while playing games. However, it still happens every once in a while. Does anybody out there have any recommendations or ideas? I don't have access to another PSU or video card.
 
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Mugglensu1984

Mugglensu1984

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I had the exact problem you have described just this month on the 4th. I tinkered for two weeks troubleshooting on my lonesome and found the culprit to be my corsair 450vs psu. After I swapped it for a Thermaltake TR2-600 600Watt, all the problems disappeared. I am gaming the Witcher 3 right now no problems.
 
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Mugglensu1984

Mugglensu1984

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I am not saying Thermaltake PSUs are the best. Just that within the shortest time it is the best that I could afford.
 
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I will take a look at them, however I just had another issue come up that I believe may be tied in with my GPU. I got a blue screen of death today. The error was PAGE_FAULT_IN_NONPAGED_AREA, technical information read 0x00000050. I looked it up and it's usually stuff involving RAM, even video RAM. I have already tested all of my RAM sticks and they were not having any issues. Could my video card actually be going bad?

EDIT: It just blue screened again and this was the error I got: 0x0000003B. Now the tower turns on, works for about three seconds, then shuts off immediately. It keeps doing it over and over again without actually booting windows. Oh brother...

2nd EDIT: I was able to get the computer to boot, but only after removing and reinstalling a stick of RAM.
 
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Mugglensu1984

Mugglensu1984

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Yeah this is the same problem I had. Unseating the RAM also got mine to boot (sometimes)

If you have an older or less powerful GPU lying around then use that to determine if is the PSU or the GPU fault. I had an ancient BFG 7600 GT with which I had the same problem and finally determined it was my Corsair PSU's problem.
 
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Mugglensu1984

Mugglensu1984

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Jul 24, 2008
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After sifting through various forums and troubleshooting sites what I gathered is this:

Sometimes the capacitors on the PSU goes bad (for whatever reason) and the PSU can't bear a heavy load on the 12V rail. In order to protect itself and the rest of the PC, the PSU shuts itself down spontaneously.
 
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M

morthrop

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Jul 4, 2015
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Thank you for that answer. I came to some similar conclusions after finding a few other threads earlier. I am almost confident that my PSU may be going back. I am still searching for another one I can use to test. If I am unable to find one, I will get a new one and give it a test, then return it if it is not the case. Also, I looked at the PSUs you linked and they seem like very good quality. I may just get one of those later on.
 
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Mugglensu1984

Mugglensu1984

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After the problem I went trough my Corsair PSU... I learnt a valuable lesson in PSU buying.

Always buy a PSU that outputs more wattage than what your system requires. This ensures everything gets enough juice.

For example I bought 600W PSU for my system which pulls about 400W. So I can OC my CPU and GPU easily.
 
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I don't exactly know how much wattage is required by my system. I was recommended by a friend at least 650, so I went with 750W. In fact, everything in my PC was fine up until June/July. Then it started having this problem.
 
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So, I finally received my replacement 750 W PSU. When I installed it, plugged everything in and hit the power button, all I heard was a click. The computer didn't boot up or anything. In fact, I had to unplug everything. Only the motherboard cable would and CPU fan would turn on. I couldn't plug in the HDD, GPU, or anything else. Great... I'm using a 750 W PSU right now by Rosewill and I can plug everything in and it turns on fine. Not this thermaltake, however. So, I'm returning this one and getting a bigger PSU...
 
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