Major PSU failure?

[Andrew Doenges]

So I was playing the division and suddenly my system shuts off I hear a buzzing and then my room blacks out (tripped breaker) and now my system won't power on. Is this my psu or possibly something else.

Specs:
PSU: CX750M Corsair
Mobo: MSI X99 SLI plus
Cpu: 5820k
Gpu: 980ti classy
Ram: gskill 16 gb 3ghz

 

[BringerOfTea]

no LED light up either?... the easiest would be to lend a working psu to test.

 

[basroil]

Why the hell would you ever trust ~$1600 in computing equipment to a PoS third tier $30 PSU????

It probably died, hopefully it didn't take out anything else with it.

Considering the quality of your other components, go get a Seasonic 760XP2 or at least an EVGA 750 P2 or corsair RMi750 (or even 850 if you want)

 

[Kiril_Petkov]

If that was a power grid issue that could damage your PSU and other parts in your computer. You could test the PSU if you have the tools to check if still working. Most PSU have safety fuse that will protect it from electrical shock you could check that too. Like BringerOfTea say easiest way is to replace yours whit one that is working. Last thing you could try is to disconnect PSU power cord from the el. grid and push power button few times, after that pug it again and try to power it.

 

[BringerOfTea]

Why the hell would you ever trust ~$1600 in computing equipment to a PoS third tier $30 PSU????

It probably died, hopefully it didn't take out anything else with it.

Considering the quality of your other components, go get a Seasonic 760XP2 or at least an EVGA 750 P2 or corsair RMi750 (or even 850 if you want)

In the PSU tier list here on tomshardware http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

That PSU in question is even listed as tier 4!

 

[InvalidError]

Unless the breaker was overloaded, the only thing that will usually trip breakers is a catastrophic failure on the PSU's primary side.

If the breaker got tripped by the PSU and not some combination of loads, then the PSU is most likely cactus. Probably something like the input rectifier bridge, APFC boost FET or the main switchers. A primary capacitor failure would be possible too but if that happened, it would have been a very loud bang instead of a fizzle/buzz.

 

[Shaun o]

Well strange things happen.

If the Psu was relatively new, say a few months old.
Then it may of just had a weak part in it that gave up the ghost a lot quicker than expected.

Fortunately most PSU come with a warranty, or should do from a year to two years.

So if it`s a few months old or a year check what the warranty is on the PSU then RMA it.

I doubt it was due to overvoltage or power consumption draw from the PSU at 750W for what it was feeding in your system at the time.

But if it is a tier 4 rated power supply it should of also had very good circuit protection features to protect the rest of your hardware connected to it for power.

I would probably put it down to a weak component. in the unit it`s self.
A sure fire way use your nose, and have a sniff of it for any burning or melting smell.

 

[snowctrl]

Have you overclocked that CPU? Corsair does not recommend overclocking with that PSU - you need something much higher up their range (or better quality from somewhere else as has been said above) if you're gonna overclock

 

[basroil]

So if it`s a few months old or a year check what the warranty is on the PSU then RMA it.

I doubt it was due to overvoltage or power consumption draw from the PSU at 750W for what it was feeding in your system at the time.

1) That PSU shuts down if you keep it at 750W too long (see hardocp'sreview)
2) That thing isn't worth RMA (see all reviews)
3) Loading isn't just about static load, lately dynamic loading is much more important, and the entire CX line fails there.

 

[Andrew Doenges]

Well strange things happen.

If the Psu was relatively new, say a few months old.
Then it may of just had a weak part in it that gave up the ghost a lot quicker than expected.

Fortunately most PSU come with a warranty, or should do from a year to two years.

So if it`s a few months old or a year check what the warranty is on the PSU then RMA it.

I doubt it was due to overvoltage or power consumption draw from the PSU at 750W for what it was feeding in your system at the time.

But if it is a tier 4 rated power supply it should of also had very good circuit protection features to protect the rest of your hardware connected to it for power.

I would probably put it down to a weak component. in the unit it`s self.
A sure fire way use your nose, and have a sniff of it for any burning or melting smell.

Didn't smell burning, and the only reason I have that psu was I slowly built this system off a boutique build as never got around to replacing psu :/
I ordered a supernova 850 gold as I don't have another psu just lying around hopefully the rest of my system is ok.

 

[Andrew Doenges]

Have you overclocked that CPU? Corsair does not recommend overclocking with that PSU - you need something much higher up their range (or better quality from somewhere else as has been said above) if you're gonna overclock

Yeah I did :/

 

[basroil]

I ordered a supernova 850 gold as I don't have another psu just lying around hopefully the rest of my system is ok.

What version? If it's not G2 then cancel the order now (well, Gq is passable ONLY for the 850, but why cheap out on the PSU when your other components are that expensive?)

 

[Andrew Doenges]

It's a G2