Faulty PSU?

[DukFruk]

I have been struggling with nvidia driver problems since l bought my MSI 660 TI PE/OC in September last year, ("Nvidia driver xxx has stopped responding and has successfully recovered"). Today while just randomly checking temps and stuff in HWmonitor I noticed that all of my voltages on my motherboard is very unstable, and jumps around alot. When I get the nvidia driver crash, my screen usually turns black, and comes back online after about 5-10 seconds. I have noticed that my GPU RPM drops to 0 (Used msi afterburner for monitoring GPU). I have done a clean driver install more than once, on different versions so I am pretty sure it is not faulty drivers.

 

 

Note the +12V running at 8.184V-8.272V should it not run at +- 12V?

 

My pc specs:

Board: MSI Z77A-GD65
Bios: Version A.80
VGA:   MSI N660Ti PE 2GD5/OC
PSU:   Coolermaster GX-Lite 600W (The cause of the problem?)
Intel Core i7 3770K Ivy Bridge 3.5GHz LGA 1155
MEM: Corsair Vengeance 4GB DDR3-1600 - CL9 1.5v XMP 2x4gb 
HDD: Seagate Barracuda 500 gig 7200rpm and 2x Seagate Barracuda 2000GB (64MB;7200)

Soundcard: Asus Xonar Essence STX

COOLER: Antec KÜHLER H₂O 620 CPU Cooler

OC    Gpu:Factory OC

        Cpu: Stock

        Memory: 1333 mhz

OS: Windows 7 64bit Professional

 

I have been meaning to replace my PSU, because I want to get another MSI 660Ti PE OC, and run the cards in SLI. Please ask for any additional information you might need. The bulk of my pc is only a year old (Bought the stuff September last year), with the exeption of my PSU, the psu is about 2 years old.

 

Dukfruk

[M-ursu]

You really should RMA it.

[Leetster]

It could be that the readings are a faulty sensor, but since your having issues with it, the psu is most likely the issue. 8.2v is really low.

[DukFruk]

I think it might be HWmonitor reading inaccurately here is a screenshot in the BIOS:

 

 

Now I am clueless...

[ProCoComputerRepairs]

 

I think it might be HWmonitor reading inaccurately here is a screenshot in the BIOS:

 

MSI_SnapShot.jpg

 

Now I am clueless...

 

Cool bios

[ictmike224]

might as well add my 2cents how long has this problem occurd for as i was haveing that issue for around 3 months then 2 days ago my PSU died n took out a hard drive with it  i didnt check my voltages like you have but it sounds so like what mine was doing when i started questioning my rig if you can get ur hands on a spare PSU see if the problem goes away

[DukFruk]

That is unlucky man, unfortunately I do not have a spare PSU to test my system with, but like I said in my first post, I was thinking about running 2x 660Ti PE in SLI, then I definitely need a new PSU, still need a bit of cash though :P   

[ictmike224]

lol yeah cash is always a problem i had just paid off my credit card........now its got a new psu on it......such is life i would say save up for the psu get ur sli and all should be well i have read alot of fourms that say a psu cant cause graphic problems however if its not getting enough power to it of course its going to cause problems the very last problem i had before mine died was exaclty what you discirbed i had around 4 graphic card driver crashes during a benchmark soon after that the psu just died everything was on stock speeds

[DukFruk]

Did some testing, running prime95 large FFT's, and heaven benchmark, at the same time to check stability:

 

 

Note how the power consumption of my GPU is jumping up and down, causing the GPU usage to be unstable.

 

[ictmike224]

If hardware monitor is correct that 12V rail doesnt look right for starters did you get any driver crashes during this test? also as mentioned in one the above posts soemthing isnt quite right 8 volts is to low i will add i have had heaven benchmark cause driver crashes any way so you might want to try 3D mark vantage which i have now used in place of heaven.

[DukFruk]

I think HWmonitor is not reading accurately, scroll up a bit and check the BIOS screenshot.

[ictmike224]

i would agree with the bios that isnt right what Hwmonitor is telling you 8 Volts is wayyy not enough to be doing what you have been doing :)

[LinusTech]

Software voltages read-outs should NEVER be trusted. Use a multimeter if you want to know what voltage your PSU is running at.

[DukFruk]

Thank you for the reply Linus will try and get my hands on a multimeter in the meantime.

[MG2R]

The voltages reported in your BIOS are well within spec. Unstable GPU usage shouldn't affect your PSU. Seeing that your GPU fan RPM drops to 0 before crashing, I'd say you have a firmware problem with the GPU. Try flashing it or contact MSI.

[DukFruk]

Well my PSU blew up today. I was busy playing payday 2, then I saw massive white flash at the back of my PSU, it was almost as loud as a gunshot. Hopefully only the PSU got fried and not any of the other components in my PC, luckily everything is still under warrenty, but I am not 100% sure about the PSU, can't remmer how long that warrenty is. Going to take my entire pc to the shop I bought all my components from and have them test each of the components to make sure nothing else got damaged.

[MG2R]

Well my PSU blew up today. I was busy playing payday 2, then I saw massive white flash at the back of my PSU, it was almost as loud as a gunshot. Hopefully only the PSU got fried and not any of the other components in my PC, luckily everything is still under warrenty, but I am not 100% sure about the PSU, can't remmer how long that warrenty is. Going to take my entire pc to the shop I bought all my components from and have them test each of the components to make sure nothing else got damaged.

If your PSU died and took other components with it, you should be able to be reimbursed for those components by the PSU manufacturer