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Need help overclocking 660ti

post #1 of 19
Thread Starter 
Hi, I need help overclocking my gpu but to no avail have I been able to find a stable clock. Any Ideas?
post #2 of 19
>Run OCing software
>Open MSI Kombuster
>Set core clock
>Run Kombuster
>Wait till it crashes
>Repeat with lower core clock
 
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post #3 of 19
hey mate,
I actually have had a lot of trouble overclocking mine also (MSI GTX 660TI PE). Using MSI on stock voltage was able to achieve only a +70 mhz to the core and +200 to the memory. The card itself is really voltage hungry and it gets hot also very fast so proper cooling is required. This is my overclock with all the boost and all added together.

Core Voltage: 1.012V (+0) - Stock
Memory Voltage: (+0) - Stock
Aux Voltage: (+0) - Stock
Power Limit: 100% - Stock

Core Clock: 1090 Mhz (+70) - Overclocked
Boost Clock: 1168 Mhz (+70) - Overclocked
Memory Clock: 3204 Mhz (+200) - Overclocked
Fan Speed: User Defined, Mic: 50 - Max: 100
Temperature: 30 Idle - 80 Load (Degrees)
Edited by deception345 - 1/30/13 at 10:51pm
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post #4 of 19
I would use Heaven instead of Kombuster or Furmark - those programs put very unrealistic loads on the GPU. But the process is simple - run Afterburner/PRecision, set the power limit tot he max, set an offset for core and memory (I'd start with +50 core/+200 memory and work up from there), and then test for stability. Repeat until it starts crashing/artifacting and then back off a little.

And Deception, you need to turn your power limit up. Otherwise your card is going to be power throttling.
post #5 of 19
Quote:
Originally Posted by Forceman View Post

I would use Heaven instead of Kombuster or Furmark - those programs put very unrealistic loads on the GPU. But the process is simple - run Afterburner/PRecision, set the power limit tot he max, set an offset for core and memory (I'd start with +50 core/+200 memory and work up from there), and then test for stability. Repeat until it starts crashing/artifacting and then back off a little.

And Deception, you need to turn your power limit up. Otherwise your card is going to be power throttling.

It runs Heaven and Crysis 3 Beta fine, Besides for some reason if I turn up the voltage it doesn't even add voltage. Might be because I'm currently using 313.96 Beta Drivers.


Edited by deception345 - 1/30/13 at 11:49pm
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post #6 of 19
Unless it's a Lightning or one of the unlocked MSI PE cards you can't change the voltage, so that is normal. All the slider does is keep the voltage from dropping at the thermal limit and increase the idle voltage.
post #7 of 19
Quote:
Originally Posted by Forceman View Post

Unless it's a Lightning or one of the unlocked MSI PE cards you can't change the voltage, so that is normal. All the slider does is keep the voltage from dropping at the thermal limit and increase the idle voltage.

I'm currently using the Power Edition of the 660 TI. My problem is that at boost stock the max is 1.175 volts, However even bumping up to 100+ and 50+ to memory and aux it doesn't add or show any voltage improvement.
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post #8 of 19
Sorry double post frown.gif
Edited by deception345 - 1/31/13 at 12:10am
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post #9 of 19
Quote:
Originally Posted by deception345 View Post

I'm currently using the Power Edition of the 660 TI. My problem is that at boost stock the max is 1.175 volts, However even bumping up to 100+ and 50+ to memory and aux it doesn't add or show any voltage improvement.

I'm not positive the new versions of the PE can be overvolted. I know there was some talk about MSI taking away the capability after Nvidia squawked, but I haven't really been following it. I think only the older versions of Afterburner worked in any case (maybe 2.2.3?). I think there's a MSI PE thread in the Nvidia section - you can ask there.
post #10 of 19
Thread Starter 
Do I need to add voltage, because it couldn't even handle +50 core clock, and crashed after 20 seconds of heaven benchmark
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