PC crashes then no power on - help v much appreciated

ukmdzeus

ukmdzeus

ukmdzeus

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Joined
10 Jun 2014
Posts
18
Hi guys,

So I recently built a computer, about a two weeks ago. About 4 times since then it has crashed while I've been gaming, as in the powerbutton stays lit up but the fans all go off and I hear a buzzing/interference through my headphones. I cut the power, then when I try to turn it back on, there's no power up at all - the power button won't light up, no fans on, nothing. Every time, I reconeect the front I/O connectors and make sure all the cables are pushed in properly, and after about ten/fifteen minutes of this it turns on a works perfectly normally again. Do you think it's a cooling problem, or something else? I'm not overclocking at all but it always seems to be happening while gaming. I did find in my last look inside the case that the cpu cooler was not properly seated in the mobo, as in a bi wobbly and not all the legs were down rigidly into the mobo - could this be it?

My build:

i5 4590
r9 270x
8gb ram
as rock h81m mobo
stock cooler
2 case fans (front and back) in Cooler Master n200 case
EVGA 500W ATX12V / EPS12V power supply
+hard drive, optical drive

Thanks very much
 
Judging by what you said about the cooler then yes, it's probably a temp problem. You need to make sure that cooler is fitted properly. It should not be able to be moved at all if fitted correctly.
 
Yep I've reseated it till I cant move it at all. So I measured temperature, using Open Hardware Monitor. Max CPU temp while gaming = 66 degrees C, max gpu while gaming = 75 degrees C. Is that too hot do you think? Should I get an aftermarket cooler as well as my 2 case fans?

Cheers
 
it really does sound thermally related. I would bin the stock cooler as a matter of principal as they are utter ****.

on my 4770K the CPU would get to 95c and shut down! so great the supplied solution doesn't work under load, how magic is that. i3' don't produce nearly as much heat but I would still bin the stock cooler.
 
75 degrees should be fine. One thing to double check though is the vrm temps on the motherboard. Asrock tend to not bother with any heatsinks on the vrms. Hardware monitor may pick up the temps.
 
Sounds like overheating but those temps seem fine. Perhaps something on the mobo not being monitored or cooled sufficiently?
 
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apparently my i5 4590 has a max operating temp of 72 degrees, so i'm getting an aftermarket cooler to bring the cpu temps down.

how should I cool the motherboard? do i need to replace it or increase airflow or something?

thanks very much for your help
 
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