OC Problem

[Quarsy]

Hi,

I have a Sapphire Nitro r9 390. When I try to overclock it, I get a blackscreen after some hours of gaming.

My PC doesn't shut off though, so I don't get a WhoCrashed report. 

Does anybody know a fix, or do I just have a bad overclock card?

Thanks in advance!

[Ryujin2003]

4 minutes ago, Quarsy said:

Hi,

I have a Sapphire Nitro r9 390. When I try to overclock it, I get a blackscreen after some hours of gaming.

My PC doesn't shut off though, so I don't get a WhoCrashed report. 

Does anybody know a fix, or do I just have a bad overclock card?

Thanks in advance!

Generally, going black means you're OC is unstable and the driver crashes.

 

Can you provide your OC info? If you are using Afterburner, a screenshot will suffice. You can always try increasing the core voltage, but it really depends on what your settings are at.

Also, have you tried default clock to make sure there is no issue there? Just to rule out any type of hardware malfunction.

[W-L]

4 minutes ago, Quarsy said:

Hi,

I have a Sapphire Nitro r9 390. When I try to overclock it, I get a blackscreen after some hours of gaming.

My PC doesn't shut off though, so I don't get a WhoCrashed report. 

Does anybody know a fix, or do I just have a bad overclock card?

Thanks in advance!

It's not a stable overclock if that occurs, try raising the voltage a little or dropping the clock speed and doing some stress testing and gaming gaming to give ita variety of load situations. 

[Mike87]

Did you watch the temperature development? At certain Limits the cards will crash to prevent damages. 

[Quarsy]

I tried a really small overclock and the temp was stuck at around 70

[Princess Luna]

14 minutes ago, Quarsy said:

I tried a really small overclock and the temp was stuck at around 70

The crashing isn't necessarily related to the temperature, if the clocks are too high regardless the temperatures it will cause instability and crashes, use Unigine Heaven on ultra at your native resolution and let it run for a solid half hour, if the screen never goes black nor the core clocks drops unexpected during full load (you can monitore it with MSi Afterburner which is the tool I always advise for OCing) then it is fine, otherwise then stability is an issue.

If it runs smooth without such issues it is stable, if not you'll have to decrease the OC there is no other way around, make sure to put its power limit on max too.

[Quarsy]

Tried overclocking again using this guide: http://www.tomshardware.co.uk/faq/id-2749337/safe-gpu-overclocking-guide-2016.html

Wehenever I change the memory clock to more than 1555MHz it crashes immediately.

Will now stress test with a 1100/1550 OC