Psu or gpu failure?

Pawan Basra · Oct 4, 2014

Hi Guys,

So a couple of weeks back i built my own gaming PC, nothing spectacular and i put in the following

z97x sli motherboard by gigabyte (brand new)
asus gtx680 2gb (had one lying around from an old sli setup )
i5 4690k (not overclocked) and brand new
corsair cx750m psu (brand new)

the problem i'm having is my graphics card driver crashes frequently as well as i get lots of lag mouse pointer freezes, screen blacks out, and sometimes i have to restart my pc for it to work. however i can game on it, played tomb raider and the gpu temp stays at about 60c and in far cry 3 reaches 70c before i get lag. benchmarked my gpu using furmark and it crashes 5 minutes in and if i underclock the grapics card a bit it will crash after 1 hour or so. the reason I think it maybe the psu is in hwmonitor my psu voltages are low and it doesn't show +12 voltage.

Thank you

CorsairMaksis · Oct 4, 2014

I think that It is the graphics card, you could upgrade to GTX 970 though. May be the psu, but i'm pretty sure that it isn't the problem.

geofelt · Oct 4, 2014

The CX series is not one of the better ones Corsair makes:
https://community.newegg.com/eggxpert/computer_hardware/f/135081/t/45344.aspx?Redirected=true

Still, it could be either cpu or gpu.

Can you test with a different psu or graphics card?

I assume your graphics driver is current.

I doubt the problem is temperature related, but try taking the case covers off and see if that makes a difference.

If you think it is the psu, I would try to return it in favor of a better quality unit instead of asking for a RMA exchange

Vic 40 · Oct 4, 2014

Pawan Basra :

Sounds like an excuse but isn't necessary,this is still a good card.

Try the voltage readings with this,

Download the next program=hwinfo32,

http://www.hwinfo.com/download32.html

You can open hwinfo32,after that open the sensor window by marking sensors=V,after that click run.

see what this gives.Also look in the bios for good readings.

I also don't think it's the psu.Maybe remove the drivers completely with the next,
http://www.guru3d.com/files_details/display_driver_uninstaller_download.html
or
http://treexy.com/products/driver-fusion

then install the latest drivers (WHQL) again.

Pawan Basra · Oct 4, 2014

Vic 40 :

used to have a better PC but sold some components to pay for my tuition, i had that graphics card for about 8 months now
with Hwinfo my voltages are
+3.3= 3.305v
+12v= 12.168v
+5= 5.07v
and bios readings are also close

Pawan Basra · Oct 4, 2014

geofelt :

without the graphics card attached the system runs like a dream, so im starting to think its my graphics card giving up. I just thought maybe the psu wasn't providing enough power to the graphics card

geofelt · Oct 4, 2014

EVGA had a 3 year warranty on GTX680 cards.
Do you qualify?

Pawan Basra · Oct 4, 2014

geofelt :

Mine is Asus Brand

Vic 40 · Oct 4, 2014

Pawan Basra :

Regarding the psu,this sounds good especially because of this.

Tried the driver sweep?

Pawan Basra · Oct 4, 2014

Vic 40 :

im getting similar problems with uninstalling drivers with the first one.

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