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Safe over voltage for Gtx 970 ssc acx2.0+

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Am3oo
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2015/08/09 09:30:23 (permalink)
Hi,
Currently running +100 core (1290) and +300 mem (1853) with +6mV.

I'd like to hit 1600 boost if possible and I'd like to know your opinions on what should be a safe max +mV for the card (considering that heat shouldn't be an issue).

Cheers.
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    yuukichan
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    Re: Safe over voltage for Gtx 970 ssc acx2.0+ 2015/08/09 10:01:57 (permalink)
    The ssc is already at 1.215 volts out of the box iirc. I think pushing it any more past that is not a great idea. Personally the risk of going past what this card is set at completely outweighs the reward of maybe 2-3 extra fps. Also I am not sure even if the gpu could handle the extra voltage if the power delivery can take the extra voltage and heat.
    post edited by yuukichan - 2015/08/09 10:04:00
    #2
    Am3oo
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    Re: Safe over voltage for Gtx 970 ssc acx2.0+ 2015/08/09 11:12:58 (permalink)
    Managed 1320 core (+130) and 1927 mem without those +6mV. Ran furmark bench and firestrike.
    Boost between 1527 and 1563 in fire strike.
    Trying to increase power limit to 105% (was trying to get more boost) crashes 3d mark, so maybe I hit the limit.
    #3
    Sajin
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    Re: Safe over voltage for Gtx 970 ssc acx2.0+ 2015/08/09 14:19:30 (permalink)
    Precision X/MSI Afterburner adjustments are safe. Anything they allow is perfectly fine.
    #4
    DeathAngel74
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    Re: Safe over voltage for Gtx 970 ssc acx2.0+ 2015/08/09 19:35:56 (permalink)
    I had to set the voltage to 1312.5V to reach 1620Mhz and 1.2750V for 1557Mhz.

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    #5
    Am3oo
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    Re: Safe over voltage for Gtx 970 ssc acx2.0+ 2015/08/09 21:23:37 (permalink)
    Well, this is the best I managed so far. There's a +12mV hidden by gpuz.
    post edited by Am3oo - 2015/08/09 21:26:00

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    Am3oo
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    Re: Safe over voltage for Gtx 970 ssc acx2.0+ 2015/08/11 01:01:14 (permalink)
    And the score obtained with them. 
    I haven't actually tried games yet, only fire strike, but I'm guessing the fan profiles are too aggresive to ignore in a session of gaming.
     

     
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    saintalchemyst
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    Re: Safe over voltage for Gtx 970 ssc acx2.0+ 2017/06/20 21:06:52 (permalink)
    I'm new to OC-ing GPUs so I thought your settings were a good place to start. I have only tested with Cinebench (opengl GPU test not CPU test) and I was able to get +135 on GPU and +357 on MEM with NO overvoltage. Moving up either slider even one more notch will cause the benchmark to crash. I could probably get a little more out of this card but I'm scared to DEATH to apply ANY overvoltage at all. How risky is a +12mv over voltage anyway?
    #8
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