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EVGA 660 TI SC Overclocking Issues

Hi:

I am trying to Overclock the EVGA 660 TI SC, I am stable at 100 mhz on the core clock but when I set at 100 mhz when play for some minutes the display driver crash!, is this due to voltage? because my temps are in 55 C I think is a pretty decent temperature and I can put a little more voltage to get more extra mhz, btw how I can add more voltage, I can see EVGA Precision X has a maximum of 1175 mv. Also why other brands can do more MHZ on the same GPU? you might say because the cooling but I have very good temperatures and can't understand why I can't push a little more my core clock.

Thanks in advance
4 answers Last reply Best Answer
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  1. Hi,

    You said: "I am stable at 100 mhz on the core clock but when I set at 100 mhz when play for some minutes the display driver crash"

    This is nonsensical, an overclock cannot be both stable and cause driver crashes.

    An increase in voltage would most likely solve the issue, however I think the GTX660 Ti (and GTX670's) are voltage locked at 1.175V, There is a BIOS that allows 1.212V for the GTX670 but I'm unsure if such a BIOS exists for the GTX660 Ti.

    Processors overclock to different levels, even within the same model or on the same silicon wafer, that's why some people reach higher overclocks than you can.
  2. Rustyy117 said:
    Hi,

    You said: "I am stable at 100 mhz on the core clock but when I set at 100 mhz when play for some minutes the display driver crash"

    This is nonsensical, an overclock cannot be both stable and cause driver crashes.

    An increase in voltage would most likely solve the issue, however I think the GTX660 Ti (and GTX670's) are voltage locked at 1.175V, There is a BIOS that allows 1.212V for the GTX670 but I'm unsure if such a BIOS exists for the GTX660 Ti.

    Processors overclock to different levels, even within the same model or on the same silicon wafer, that's why some people reach higher overclocks than you can.



    Sorry I was confused, I meant stable at 90 Mhz but when set to 100 mhz then the driver stop working, I will be looking for this bios.

    Thanks
  3. Best answer
    john1587 said:
    Sorry I was confused, I meant stable at 90 Mhz but when set to 100 mhz then the driver stop working, I will be looking for this bios.

    Thanks


    Ah ok no worries. :)

    Be careful to make sure the BIOS is compatible with your card before flashing!
  4. Best answer selected by john1587.
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