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[HELP] SLI 980Ti OC degradation in a few days?

post #1 of 8
Thread Starter 
2 x 980ti gigabyte g1 gaming

Hi all so I've been testing stable overclocks for my 980ti sli setup and found that my highest stable over lock I could achieve was +150 core clock +500 mem clock. The result can be seen here in this firemark test. I know it says not valid but it's because I will alt tab at the beginning of the demo to just go straight to the graphics test. The test all ran fine.

http://www.3dmark.com/fs/6449822


However today 10/13/15 I received my new h100i gtx cooler for my i7 3770k since my original h100i was failing. During the installation I had to remove the 2nd card in sli due to the fact that I couldn't plug in the usb header from the corsair pump into the MB. I reinstalled the card fine and went to go mess with cpu overclocks since I just got the new cooler. Got a stable 4.8 ghz on the i7 now and then went to go see my new fire strike score. Low and behold I don't make it past the first graphics test. I figure the CPU OC is not stable and reset to default. Run fire strike again and I still don't get past the first graphics test. I had to lower my clocks to +145 and +400 in order to get a stable
Gpu clock. Now I have no idea what could be going on here... I have done a clean install of the Nvidia drivers as well. Also voltage and power are max using precision x16 no k boost.

TL: DR
Stable OC at +150 core +495 mem (1554/8000)

Installed new cpu cooler had to remove 2nd card in sli and gpu stable clocks changed to +145 +400.

Already did clean install of drivers . Thanks for the help!
post #2 of 8
Thread Starter 
Bump anyone?
post #3 of 8
Quote:
Originally Posted by nazgulian View Post

I reinstalled the card fine and went to go mess with cpu overclocks since I just got the new cooler. Got a stable 4.8 ghz on the i7 now and then went to go see my new fire strike score.

What did you change? Changing your CPU OC/any other settings in bios can have a direct impact on the stability of previous GPU OCs.
post #4 of 8
It was probably never stable.
I've passed Firestrike with 1506. Next time it crashed.

Firestrike isn't a stability test, it's a benchmark.

If you want to stress test, set DSR to 4x and play the most demanding game you have.

EDIT: Do they both use Samsung?
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post #5 of 8
Running uniengine heaven on a loop is a good test too, I always can pass3dmark, but crash in heaven or see artifacts in heaven, lower oc some so heaven is stable is really the staple of stable oc'ing.
    
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post #6 of 8
Quote:
Originally Posted by caenlen View Post

Running uniengine heaven on a loop is a good test too.
That's how I roll.
Set DSR to x4 and Heaven will let you run it fullscreen.
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post #7 of 8
Thread Starter 
I reverted back to the stock BIOS to make sure that it wasn't the CPU having a problem. I always figured that 3dmark firestrike was a better test than heaven. Should I be running heaven at extreme HD? or use a custom setting to test at full screen? I was never sure if it made that much of a difference!

also can someone let me know if in OC GURU II changing the min voltage is overvolting? Or what exactly does it do?
post #8 of 8
Quote:
Originally Posted by nazgulian View Post

I reverted back to the stock BIOS to make sure that it wasn't the CPU having a problem. I always figured that 3dmark firestrike was a better test than heaven. Should I be running heaven at extreme HD? or use a custom setting to test at full screen? I was never sure if it made that much of a difference!

also can someone let me know if in OC GURU II changing the min voltage is overvolting? Or what exactly does it do?

i wouldnt use anything but msi ab honestly. and i max out everything in heaven to run my artifact and stability test. firestrike can run unstable oc's easy, its not even worth testing it on 3dmark anymore, heaven is the only that shows you if its truly stable.
    
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5TB Seagate 2.5" 5400RPM Grizzly Conductonaut on GPU and CPU Win 10 Bloatware Free Edition 17.3" 1080p IPS oc'd 100hz GSYNC 
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Hard DriveCoolingOSMonitor
5TB Seagate 2.5" 5400RPM Grizzly Conductonaut on GPU and CPU Win 10 Bloatware Free Edition 17.3" 1080p IPS oc'd 100hz GSYNC 
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