PSU Faulty or something else?

tambeshakunt · Oct 11, 2014

So,

Over the past 2-3 days, my system just turns off while playing watch dogs. It is completely random and has happened 2 times now. Although I have only noticed it with watch dogs, I am 98% sure that it is not a Watch dogs fault and it is a hardware issue.

(The specs are in the bottom right corner.)

Here is what I noticed:

-While playing, when under load, my system just turns off without warning
- However long I wait, I cannot turn my system back on by pressing power switch. Therefore, it is not a overheating issue.
-If I flick the PSU switch off and then on again, my system powers on just fine and I am back to normal.

THEREFORE, I think it may be a PSU fault? Why should flicking the switch make it turn on ? Could it be motherboard as well - since flicking switch drains all the power out?

I have made no hardware or software changes and the system has been working perfect so far.
Thanks in advance for all your help - I wasn't able to figure this one out myself.

!

P.S System is 1.5 yrs old now so all parts still under manufacturer warranty.

zink1701 · Oct 11, 2014

Run a stress test on both your CPU and GPU, monitor the thermals while doing so. Overheating is a common cause of shutdowns while doing intensive things with your machine. Prime95 for the CPU, MSI Kombustor or similar for the GPU. Use Core temp, Real Temp or open hardware monitor to view the thermals.

rolli59 · Oct 11, 2014

Looks like a failing PSU. Temp problems would mean thermal throttle not shut down.

huilun02 · Oct 11, 2014

What PSU are you using? You might want to ditch a crappy PSU even if its not the cause of your problems.

tambeshakunt · Oct 11, 2014

zink1701 :

Thanks will do that. however, I doubt its an overheating issue because like I said, I can turn the system straight back on and when I check temps, they are all acceptable.

tambeshakunt · Oct 11, 2014

huilun02 :

It is the Corsair CX600.

tambeshakunt · Oct 11, 2014

rolli59 :

hmm thought so. However, when I check voltages, they are all seeming to be in the acceptable range. Still can be a psu fault?

I will be contacting Corsair anyway, to see what they say.

rolli59 · Oct 11, 2014

tambeshakunt :

Although a budget unit it has an internal protection for multiple things and that you have to flip the switch points to one of them tripping and needing reset.

tambeshakunt · Oct 11, 2014

Right, Thanks for that. Are you sure its not some motherboard power delivery issue? Where it only turns on when the power is drained and then powered again? Just wondering! :/

bignastyid · Oct 11, 2014

tambeshakunt :

The cheap capacitors are probably giving out. Had 4 CX's that did the same thing.

tambeshakunt · Oct 11, 2014

bignastyid :

I see. By 'same thing' are you referring to the need to flick the switch on and off?

rolli59 · Oct 11, 2014

Most likely the PSU since the board is quality.

bignastyid · Oct 11, 2014

tambeshakunt :

bignastyid :

I see. By 'same thing' are you referring to the need to flick the switch on and off?

I was referring more to the shutdown problem.

tambeshakunt · Oct 11, 2014

Most likely the PSU since the board is quality.

I was referring more to the shutdown problem.

Ok thanks.

tambeshakunt · Oct 11, 2014

One more thing....

I have also been playing Battlefield 4 and nothing has happened while playing that ; only every happened with watch dogs. Is this just a matter of chance do you guys think or is it because watch dogs puts more load on the PSU??

thanks for all the help so far.

rolli59 · Oct 11, 2014

tambeshakunt :

That would be the only explanation.

Dark Lord of Tech · Oct 11, 2014

The CX500 , CX 600 and GS600 are Corsairs most returned supplies.

Probably a PSU issue.

I put a CX500 in my mother's Optiplex 960 and it failed 5 months later.

tambeshakunt · Oct 11, 2014

Thanks very much SR71. Looks like everyone is agreeing with my original thought - faulty PSU. I have already raised a support ticket with corsair for this, should reply within a day or two.

BTW, are there are software programs that any of you guys recommend that can simulate the load of the PSU, just so I can make 100% it is a PSU problem and not watch dogs or anything to with software.

Thanks once again!

rolli59 · Oct 11, 2014

Furmark stresses the GPU with massive loads. http://www.majorgeeks.com/files/details/furmark.html

tambeshakunt · Oct 11, 2014

Yes I already tried furmark but only for a short while. Will give it a go for atleast 20-30 mins or so.

Also, what PSU do you think I should get to replace this? I am looking for 750W since I might overclock and/or crossfire another 7970. Should I go for the XFX Pro 750W? I want the cheapest, but most reliable option. 80+ bronze or silver are ok too, gold is not a must.

Dark Lord of Tech · Oct 11, 2014

Made by the best Super Flower.

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 850W 80+ Bronze Certified Semi-Modular ATX Power Supply ($79.99 @ NCIX US)
Total: $79.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-10-11 10:44 EDT-0400

bignastyid · Oct 11, 2014

Crossfire and overclocking you'd want an 850w PSU.
http://pcpartpicker.com/part/evga-power-supply-110b20850v1
http://pcpartpicker.com/part/xfx-power-supply-p1850bbefx

rolli59 · Oct 11, 2014

My choice on price alone XFX 850 http://www.tomshardware.com/reviews/radeon-r7-240-and-250,3717-6.html
Efficiency and modular Rosewill great price http://pcpartpicker.com/part/rosewill-power-supply-capstone1000m

tambeshakunt · Oct 12, 2014

Im in the UK but thanks for all the recommendations so far anyway....

Are you guys sure a 750W like this won't do? I won't overclock too much (maybe up to 3.8 or 4.0Ghz) and I may only add one r9 280x/7970 in the future. http://www.amazon.co.uk/dp/B00KM821KC/?tag=pcp0f-21

Otherwise, how about this 850W? http://www.amazon.co.uk/dp/B0045L4BNW/?tag=pcp0f-21

rolli59 · Oct 12, 2014

The XFX850 cheaper here http://uk.pcpartpicker.com/part/xfx-power-supply-p1850xxxb9

PSU Faulty or something else?

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