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random shutdowns

post #1 of 41
Thread Starter 
my computer has started to randomly shutdown recently. most of the time, it's when i'm playing Battlefield 4, but it's also shutdown while i was just doing normal work and browsing the web. and i believe it shutdown once while i was in the BIOS too. tonight, it happened 4 times, and after the last time, it won't turn on again.

after i assembled it for the very first time, it never turned on no matter what i did. i had to disassemble it and try each component one by one. turned out that one of the RAM modules was faulty (which i RMA'd). before installing the new second module, it was working fine, and when i installed it, the computer didn't turn on again. i had to take both the RAM modules out and reinstall them, and then it turned on, but the problems started after that. if i can get the computer to turn on, i will run memtest86+ overnight to check for errors, but i'm afraid the problem might be the motherboard since the probability of two RAM modules being faulty one after the other is fairly low, i guess.

oh, and everything is running stock (details in my signature)...no overclocks.
post #2 of 41
Don't you think a 450W PSU is kind of cutting it way too close for what you're running? At load the Tri-X 290X draws about 400W of power leaving you 50W for everything else. It's probably what is causing your shutdowns, you're literally working that PSU to death.
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Skylake Is Here!
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 6700K Batch #L535B021 4.7Ghz @ 1.296V GIGABYTE G1 Gaming GA-Z170X-Gaming 7 EVGA Geforce GTX 970 SSC ACX 2.0+ G.SKILL TridentZ 16GB DDR4 3000 
Hard DriveHard DriveHard DriveCooling
Samsung 950 Pro M.2 512GB  Crucial BX100 250 GB SanDisk SSDPlus 240 GB NZXT Kraken X61  
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Windows 8.1 & 10 Dell UltraSharp 2913WM 21:9 2560x1080 Ducky Shine 4, CODE WASD, Deck Legend, G710+ EVGA SuperNova G2 850W 
CaseMouseMouse PadAudio
Phanteks Enthoo Evolv ATX Mid-Tower Ducky Secret SteelSeries Fostex Purple Heart TH-X00 
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post #3 of 41
I'm not trying to be mean bud but u should really look at a 500+ power supply 80plus.. 400 watt will not cut it.. Plus if I was going to guess ur using a cx430 or cx400 wich both of them only put out 350 real watts.. U really need a bigger power supply thats lest 80plus and if money a problem look at the xfx 550 psu there 6$ mire then a cx430
post #4 of 41
Thread Starter 
not when browsing the web or standing on the BIOS screen. also, i have not overclocked the CPU or the GPU at all...i am not ruling out the PSU option, but before installing the new RAM module, i was running the system with only one 8GB module and had Windows 7 installed with an older version of the BIOS that came stock from factory. everything was stable, Heaven ran fine, Intel Burn Test ran perfectly fine, and i had absolutely no crashes. fast forward to the day i installed the second RAM module (after which i installed Windows 8.1 and updated the BIOS to the newest version): i started having crashes slowly but surely. so i think one of the three is the culprit:

1) bad RAM (which would be the second time)
2) new BIOS
3) Windows 8.1

i'm leaning a bit towards the first one...i'll run a memtest86+ tomorrow to rule that out.

thanks for your reply, btw smile.gif
post #5 of 41
Thread Starter 
Quote:
Originally Posted by reapersakiller View Post

I'm not trying to be mean bud but u should really look at a 500+ power supply 80plus.. 400 watt will not cut it.. Plus if I was going to guess ur using a cx430 or cx400 wich both of them only put out 350 real watts.. U really need a bigger power supply thats lest 80plus and if money a problem look at the xfx 550 psu there 6$ mire then a cx430

no, i'm using a Silverstone ST45SF Gold 450W PSU. unfortunately, because the case is extremely small, i can't fit any other PSU in there. people have been running i5-4670k + 290X with the same PSU just fine for a while in this case. again, it MIGHT be the PSU, but i doubt it because others with the same setup aren't experiencing these symptoms.
Edited by darxider - 3/29/14 at 12:03am
post #6 of 41
Okay if I was u. I would use a different power supply and test to see if that works somthing with more watts.. I use to run a core 2 quad overclocked alot with a antec 430 earthwatt power supply with gtx460 in a Silverstone case .. It was for lan parts.. And it would get how as hell and would shut off and random crashs and lock up alot.. So I put a nice corsair cx600 never look back fixed it all.
post #7 of 41
Wait, so after the RMA did you re-install windows? because what usually happens is that the computer will remember the hardware that is in your computer and if you change it, it will BOSD.
post #8 of 41
Thread Starter 
yes, i reinstalled Windows after i got the new RAM module.

so, i opened up the case and checked all the cables and made sure they were properly connected and made sure that the RAM modules were properly seated as well. i then changed my fan curves and increased the fan speed. now the GPU is 10C cooler (although a bit more noisy) and my CPU is about 4C cooler, and i never had a shutdown since yesterday (i played about 5 hours of BF4 and left the computer on for the whole day).

according to GPU-Z, the maximum power draw of my GPU was about 230 Watts and about 60 Watts for the CPU. that's easy enough for a 80+ Gold-rated 450 Watts PSU to handle.

thanks for all your help smile.gif
post #9 of 41
Once again. I will say test it will a bigger power supply.
post #10 of 41
Thread Starter 
i would if i had access to one. this is the only desktop PC in my vicinity! everybody i know has either a laptop or an iMac! smile.gif
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