Self-built pc crashing problem

gustavnordahl · Jul 30, 2015

Hey guys!

I've had this self-built computer at home for 2 years now and it has worked perfectly, but now i've got an issue!

While gaming the computer can shut itself off unexpectedly, and when starting again a screen called American Megatrends pops up. I later press f1, then get to choose my ssd to boot my comp as usual again. I can always do this, but want the crashing to stop! Can somebody help me?

I've got a asus motherboard, nvidia 670, intel i5, corsair cx 600 power supply thing. If you want more details just ask!

tiny voices · Jul 30, 2015

Does it do this when playing games or just randomly?

Scibility · Jul 30, 2015

Do a memory test see if your modules are still working properly.

bignastyid · Jul 30, 2015

Sounds to me like the PSUs capacitors are giving up. You should feel lucky that CX managed to last 2 years and replace it.

gustavnordahl · Jul 30, 2015

tiny voices :

Only when gaming so far!

gustavnordahl · Jul 30, 2015

Scibility :

will do!

here is a picture!
http://9gag.com/gag/a9PKZmj

tiny voices · Jul 30, 2015

Yes, definitely sounds like bad PSU to me. Replace it ASAP. Antec, XFX, seasonic, EVGA (G2,B2,GS) are what you want.

Scibility · Jul 31, 2015

Coolermaster PSU's are good performance/money

tiny voices · Jul 31, 2015

Nope. Most of Coolermaster PSUs are crap. Only the V and VS series are good. Everything else is to be avoided.

Scibility · Jul 31, 2015

Never had any problem with mine http://www.mweb.co.za/DesktopModules/DigArticle/MediaHandler.ashx?portalid=20&moduleid=5259&mediaid=9378&width=665&height=400 this one

tiny voices · Jul 31, 2015

That PSU is not good at all. Average at VERY best. Just because you haven't had issues, doesn't mean it is any good. That PSU has AWFUL ripple and is likely not doing your components any favors.

bignastyid · Jul 31, 2015

Scibility :

Thats doesn't make it good, it just makes you lucky(so far). I agree with Tiny voices the only current Coolermaster units that are any good are the V and VS(both are usually overpriced). Most of Coolermasters PSU range from mediocre to garbage(and most are overpriced). I wouldn't touch a Coolermaster thunder with a 10ft pole. I'd put it in the same category as the Corsair CX.

Scibility · Jul 31, 2015

oh well, i believe you still it runs my AMD r9 290x and i5 4690k perfectly however..

tiny voices · Jul 31, 2015

I agree that your Thunder 600w is about CX level of quality, but Coolermaster also make MUCH MUCH worse products as well. This is generally why I never buy anything from them at all.

tiny voices · Jul 31, 2015

Scibility :

Replace it ASAP. You are seriously asking for it to die and fry your whole PC running a 290x on it. It WILL NOT last long running that PC.

Scibility · Jul 31, 2015

but the temperatures are fine, slightly high at idle. ( just closed GTA V) you mean at a longtime term probably? http://puu.sh/jk8sl/011dd7b16d.png

tiny voices · Jul 31, 2015

Temps don;t have anything to do with the PSU. Nothing.

You need to be worried about what you CANNOT monitor. The PSU is made with bottom tier components. YOu need to be worried about something failing like a capacitor (happens all the time with junk PSUs) and frying the PC.

Replace that PSU.

No I do not mean long term. I mean tomorrow you might run a game, hear pop, see smoke, and have no more computer. I have personally dealt with fried PCs from CM Thunder PSUs.

Another thing to worry about is that your PSU specifically is tested and known to have 100mv+ ripple at over 50% load. This is TERRIBLE and IS going to shorten the life of your components like the GPU if it doesn;t completely kill them first.

bignastyid · Jul 31, 2015

Scibility :

Temperature have little to do with it. The only time I have seen a PSU cause overheating is when it was overvolting. Running a power hungry card like the 290x on a subpar 600w PSU is just asking for trouble.

Scibility · Jul 31, 2015

I have warranty until 23-01-16 that helps me until i get the money for a new one, what PSU would you recommand for this setup?

bignastyid · Jul 31, 2015

Scibility :

Does that warranty cover parts the PSU fries or just the PSU itself? I'd get a 600w(or larger) unit from tier 1 or 2 of this list.
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

tiny voices · Jul 31, 2015

The warranty doesn't do anything. Coolermaster will not replace your entire PC if that PSU fries it. They aren't Seasonic.

You want a 650w+ unit from antec, XFX, Seasonic, EVGA (G2,B2,GS)

Scibility · Jul 31, 2015

Warranty is over my whole PC although, i've upgraded the mobo/GPU/CPU since. ill ask about that to the brand i got it from.

tiny voices · Jul 31, 2015

Regardless of any warranty, you need a new PSU for that system to be used safely.

Scibility · Jul 31, 2015

would this one do? Seasonic M12II Evo 620W

tiny voices · Jul 31, 2015

That is a MUCH MUCH better unit.

Self-built pc crashing problem

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