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can't find OC info on msi GTX 660 ti oc edition

post #1 of 6
Thread Starter 
msi GTX 660 ti oc edition (not the power edition)

i havent found any info on what this can be overclocked to or if it even can or should be

does the software used to overclock matter as long as it's the same result? i'm considering using the Nvidia inspector over the msi afterburner under the idea that this overclock takes place whenever the pc is booted up, rather than having to manually do it in afterburner after each boot up, i heard that for some reason it's undesirable to have the afterburner software automatically do this on start-up
post #2 of 6
Welcome to OCN (well first post at least thumb.gif )

The gtx 660 ti oc edition can overclock just as good as any other, its all luck. For all you know you might have one that overclocks better than a PE version. The difference with the PE edition is that it lets you increase the voltage on a few items like memory and vrm volts. If I remember with the gtx 6xx series stock voltage was 1.175v and nvidia allowed for 1.200 which is very safe for these cards.

I personally like to use either msi afterburner or evga precision and neither one of those programs will automatically boot with the overclock unless you select it.

Here is evga precision, I have it set to boot with the oc, so you can just deselect that.



Check this guide out for more help, its labeled gtx 670 but the same applies for the 660ti
http://www.overclock.net/t/1265110/the-gtx-670-overclocking-master-guide

I also want to mention, I like to stress test the overclock with unigen valley benchmark on extreme settings. Some like heaven but heaven 4.0 I think is too stressfull for single card solutions. After you select your overclock, see if valley will finish a full pass, then keep going higher till it crashes. Once you think your stable, let it finish 3 passes and you should be good in any game. If you find a game that causes a crash, the most you will likely need to lower your overclock will be 10-15mhz
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2014 nerd box evo
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corsair f120ssd/seagate 1TB Asus cd/dvd burner Antec Kuhler 920 semi-custom loop (2 radiators) win7 professional 64bit 
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post #3 of 6
Easy way to do it is get precision x or afterburner. Up your power target to max.

Up your core clock 20-25 at a time. Run unigene or I use 3dmark after each raise to test stability. Once it fails drop back 20-25 or bump voltage. Repeat with mem clocks but I raise 50 at a time.

Also make sure your card stays under 70c to prevent throttling. It will drop your clocks at 70, 75, and 80c.

That's the quick and dirty.

Personally I modified my bios so that it doesn't throttle at all and also so it doesn't boost at all. So what you see is what you get.
post #4 of 6
Thread Starter 
what should i increase the core voltage to in afterburner? is it just a matter of as high as you can go while under a certain temperature?
post #5 of 6
I think your card only allows for +12mv. You can apply that but don't really need to just yet since its usually only worth 10mhz. Just see how high you can go on stock voltage before the card throttles at 70c.

Up the fan speed to max while testing then to something that's acceptable to your ear while gaming. I like to keep Kepler under 70c but 80c is probably the most you should go. Damage won't occur until either 90-100c, don't remember but your card throttles at 70c anyways so no need to worry
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2014 nerd box evo
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CPUMotherboardGraphicsRAM
AMD 1100T x6 4244mhz 3065cpu-nb (fx8150 at 4.9g... Asus Crosshair V Formula Asus gtx570 dcII- 890/1780/2200@1088mv corsair dominator gt 8GB 1866 @1886 
Hard DriveOptical DriveCoolingOS
corsair f120ssd/seagate 1TB Asus cd/dvd burner Antec Kuhler 920 semi-custom loop (2 radiators) win7 professional 64bit 
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Gateway 23" 1920x1080 corsair ax850 Rosewill blackhawk w/hdd bay mod logitech mx518 
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post #6 of 6
Quote:
Originally Posted by sleepwalker2 View Post

what should i increase the core voltage to in afterburner? is it just a matter of as high as you can go while under a certain temperature?

Yup. Basically max it out. The cooler on the MSI cards should keep it under 70c no matter what.
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