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980 ti overclock help

post #1 of 37
Thread Starter 
I originally had my gigabyte 980 ti g1 overclocked to 1502mhz core and it was stable in heaven for like 7 passes which is like half hour but if i loop the firestrike extreme demo it crashes within 10 minutes. Is it safe to assume the overclock is unstable? The only reason i even decided to stress test with firestrike after passing heaven was cuz my drivers crashed while play tomb raider so i thought maybe it was my oc. How should i approach this?
post #2 of 37
Yes, you aren't stable. You should try lowering your clocks. I found that raising voltage on 980ti for me did little to nothing to help. Lowering temps could help stability, but I would set it so you are at like 1468, and make sure that it is rock stable before trying for another notch.
post #3 of 37
its not sable you need to lower clock speed
post #4 of 37
Thread Starter 
Yeah ur right my 980ti doest like overvoltage. I dropped the clock down to 1487 due to 1497 crashing power limit set to 139. temp so far is 70c, firestrike extreme demo loop has been running for a lil over 20 mins. How long should i run to no that its 100percent stable, and how should i approach the memory clock?
post #5 of 37
what brand and model is the graphics card? are the power connectors 6 pin or 8 pin? or does it have 1 6 pin and 1 8 pin?
trust me the power phase makes a difference in your over clock.
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post #6 of 37
Thread Starter 
Its a gigabyte 980 ti gaminh g1. 2 8pins
post #7 of 37
Quote:
Originally Posted by Teafac3 View Post

Its a gigabyte 980 ti gaminh g1. 2 8pins

you should be able to go to at least 1550mhz core clock and 2000mhz memory with that, those are bad a** gpu's.
I have one in the 970 series and I can hit 1575mhz core clock no problem.
I also have a reference PNY GTX 980 that I can get good oc on it.
here are my settings for my 980 with a stable over clock. silly me, I see in your first post you said what brand redface.gif

.
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post #8 of 37
Thread Starter 
So what should i do max out the voltage and power limit first? Than how much do i increase the core clock at a time starting from zero?
post #9 of 37
Thread Starter 
My asic score is 74.9 btw. Also what did u use to test your overclock and how long did u run it?
post #10 of 37
Quote:
Originally Posted by Teafac3 View Post

So what should i do max out the voltage and power limit first? Than how much do i increase the core clock at a time starting from zero?

even when you max out the voltage and power limit on afterburner your gpu is still locked at a certain max voltage so
you won't hit a unsafe voltage unless you flash the bios with a modified one, which I don't do that as theres a chance to brick your $700 gpu.
I run up both volt and power limit to max as soon as I get a gpu, setting those to max and leaving my core clock and memory clock at stock the increase in just those puts my core clock at 1375mhz when stock my gpu is in the 1200mhz range stock
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Old X58
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Windows 7 Pro 64bit LG 29inch widescreen DP LG 29inch widescreen DP Corsair K65 
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