GTX560 Crashing PC

Calannon

Commendable
Jun 12, 2016
4
0
1,510
Hi guys,

So I have a PC (specs below) which is a couple of years old now (as you'll see with the specs). Recently the PC crashed while playing a game, with the game going pixelly before the crash so I assumed graphics card issue. I booted it up again and anytime small GPU stress was added (like a game being played) it would crash and my PC would restart. I checked the temperatures of everything incase the Tjmax was reached, but nothing even close (everything at a cool 30 degrees C)

I tried then to update the drivers, just in case, on the card. I updated to the latest stable GeForce drivers, but during installation when the screens went blank (at the usual part of installing a GPU driver) the PC stayed blank for a couple of minutes, before crashing and re-booting itself. This cycle continued of crashing (now) after the BIOS and rebooting, eternally.

The PC works when using on-board graphics only. I wiped the drivers from the machine and rebooted the machine with the card in, and the DVI cable connected to the card and it somehow works fine (I assume its onboard graphics going through the card to the DVI cable).

I presume my card is kaput, but was wondering a about a second opinion in case it's salvageable and it's just a firmware issue or something. I would rather not fork out on a new card only for it to be some other weird issue..

Many Thanks for any help, it will be greatly appreciated.

Specs:

i7 (Sandybridge) 2600K @3.40GHz
GTX 560 ASUS GPU
8GB Corsair RAM
1TB Seagate HDD.


 
Solution
Your card works, at least some.
When you get a bios image with the monitor connected to the card, the card is at least ok for basic low res images.

You must install the nvidia drivers to see full resolution on your monitor.

Under graphics load, as in gaming, the card will draw added power and work harder.
If your psu is a cheap one, or old, it may not be able to deliver adequate power under load.
Are the aux 6 pin connectors to the GTX 560 firmly connected?

If your psu is good, then the graphics card is likely failing.

Can you test with a known good psu of >500w?

Update...
Your 750w psu advertises 16 and 18a on the 12v rails where the cpu and graphics cards need them.
A good 750w psu like Seasonic will have 70a available...

maxalge

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Ambassador


make and model of the power supply?
 

Calannon

Commendable
Jun 12, 2016
4
0
1,510


Ahh sorry forgot about that. It's a 750W Powercool supply.
(https://www.scan.co.uk/products/750w-powercool-pc-750auba-80plus-dual-rail-1x120mm-fan-atx-v22-psu)

I have extra 12V cables directly between it and the GPU to ensure enough power is getting to the GPU.
 

maxalge

Champion
Ambassador


i strongly suggest you try out another power supply


poor components and known to lie about the wattage of their units
 

Calannon

Commendable
Jun 12, 2016
4
0
1,510


Thanks for the suggestion. I'll try another and see!
 
Your card works, at least some.
When you get a bios image with the monitor connected to the card, the card is at least ok for basic low res images.

You must install the nvidia drivers to see full resolution on your monitor.

Under graphics load, as in gaming, the card will draw added power and work harder.
If your psu is a cheap one, or old, it may not be able to deliver adequate power under load.
Are the aux 6 pin connectors to the GTX 560 firmly connected?

If your psu is good, then the graphics card is likely failing.

Can you test with a known good psu of >500w?

Update...
Your 750w psu advertises 16 and 18a on the 12v rails where the cpu and graphics cards need them.
A good 750w psu like Seasonic will have 70a available.
Powercool is a tier 5 unit.
I think I would replace the psu regardless.
Here is a list:
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html
The danger of a cheap psu is not that it might not deliver advertised power, but if it should fail under lod it will not have the protective circuitry to keep from damaging other parts.
 
Solution

Calannon

Commendable
Jun 12, 2016
4
0
1,510


Hi geofelt,

Thanks, I completely overlooked the PSU when considering my options. I originally thought the low res was coming from the onboard, so thanks for clearing that up.

Yes the 6pins are firmly connected, I will try to find a decent PSU I can test with, or just see about a replacement altogether.

Thanks!