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[Official] NVIDIA GTX 660TI Owners club - Page 74

post #731 of 3662
Hello. I am new to this forum and just got myself gtx 660 ti reference with 915 core clock, 980 boost and 1502 memory. I would like to overlock my card. Can anyone explain to me how to overclock it using msi afterburner? What is the use of the voltage and power limit in msi afterburner? Also how do I know if I overclock my core clock or memory clock too much? If there's anyone having the same card with same core clock and memory clock can you share with me what is your maximum core clock and memory clock after overclocked? Thank you in advance and sorry if I ask too many questions. Noob here tongue.gif
Edited by ricko99 - 12/28/12 at 9:56pm
post #732 of 3662
Quote:
Originally Posted by ricko99 View Post

Hello. I am new to this forum and just got myself gtx 660 ti reference with 915 core clock, 980 boost and 1502 memory. I would like to overlock my card. Can anyone explain to me how to overclock it using msi afterburner? What is the use of the voltage and power limit in msi afterburner? Also how do I know if I overclock my core clock or memory clock too much? If there's anyone having the same card with same core clock and memory clock can you share with me what is your maximum core clock and memory clock after overclocked? Thank you in advance and sorry if I ask too many questions. Noob here tongue.gif
Well heres the official guide at OC: http://www.overclock.net/t/1302409/nvidia-gtx-660ti-owners-club/730

I dont like this guide tbh, because its just too wordy and comprehensive for such a simple task. But its certainly useful as a reference.

In OC'ing your card, to start with since you're new at it, in MSI-AB or Evga Precision-x, just move the power target to its max (some cards, 123-5, others 115). This removes power limitations when you OC the card. Once you've maxed the power limit, begin to move your boost clock +50mhz. That will also raise your default clock. Test your OC with a program like 3DMark11 which serves both as a stress/bench test. Before you OC your card you should run this program to know its non-OC'd score which will serve as your reference. If the first 50mhz goes OK, raise the boost clock another 50mhz (some say 10mhz at a time, I think its still too early for that). Test your OC again with 3dMark again. If all goes well, raise your OC by 20mhz this time and repeat until your card becomes unstable or crashes. If unstable or crashes, reduce by 10mhz until its stable again. You can also raise the voltage to regain stability, but I dont think the voltage setting does much in Kepler (its 'too protected' voltage wise) and the adjustments are very minor. Once you've fully established your max boost OC, remember it or save it as a profile. Then bring it back to its default clocks.

Now you can begin to OC the memory to find its max speed. Again, do the 50+50+20mhz increments while testing in between and reduce by 10mhz if you find unstable and repeat until you achieve stability. Once you've achieved max mem clock, you can then re-OC your boost clock to the value you last achieved when stable. Then test the combined boost/mem OC.

Personally, this just my opinion, I prefer not to OC too much on memory. Many if not most cards have poor memory cooling and the mem chips can get very hot when pushed.
Edited by blued - 12/29/12 at 2:22am
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My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
7700k Asrock z270 Taichi GTX 1070 AMP! 16gb Vengeance 3200mhz 
MonitorPowerCaseAudio
Qnix QX2710, Yamakasi DS270, Catleap 2b XFX 750W Pro CM Sniper BE SBZx 
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post #733 of 3662
pics of the cards or screens of FC3 running at 75fps ?
post #734 of 3662
Quote:
Originally Posted by Dreamxtreme View Post

pics of the cards or screens of FC3 running at 75fps ?

Pics of your cards/setup would be fine
post #735 of 3662
As soon as i fix my camera biggrin.gif
post #736 of 3662
Is there any unlocked bios to the GTX660, like this GTX670/680 thread ?

http://www.overclock.net/t/1289489/gtx-680-670-unlocked-voltage-bios
post #737 of 3662
Quote:
Originally Posted by Fonne View Post

Is there any unlocked bios to the GTX660, like this GTX670/680 thread ?
http://www.overclock.net/t/1289489/gtx-680-670-unlocked-voltage-bios
It shows you how to make your own unlocked BIOS right in that thread wink.gif
post #738 of 3662
Quote:
Originally Posted by Rayce185 View Post

Quote:
Originally Posted by Fonne View Post

Is there any unlocked bios to the GTX660, like this GTX670/680 thread ?
http://www.overclock.net/t/1289489/gtx-680-670-unlocked-voltage-bios
It shows you how to make your own unlocked BIOS right in that thread wink.gif
how's the Q holding up, I miss my old Q9505s build, it was my first real Intel build, on an ASUS (nVidia chip) mobo..
smile.gif
post #739 of 3662
Quote:
Originally Posted by malmental View Post

how's the Q holding up, I miss my old Q9505s build, it was my first real Intel build, on an ASUS (nVidia chip) mobo..
smile.gif
It's running great! Except for benchmark scores and folding, it still holds up great in games smile.gif
post #740 of 3662
glad to hear it mate... smile.gif
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