Need advice overvolting GPU

[Ren Heika]

Hey guys I'm new to the forum (I don't know why it took so long to join but hey I'm here now) I was just looking for some tips on overvolting my GTX Titan Black. See I have an EVGA ACX cooler on it and the best I can seem to do for an overclock is +155 on the core and +10 on the memory. Now its not bad but I see some other people getting like +200 to +300 on both without touching the voltage. Anyway I'm dragging this on, what I'm wondering is if there is a safe limit to stay in when overvolting and really if there is anything else I should know like degradation that could be caused by doing this and so forth. By the way I did bump the voltage by 25mV just to see if it helped stability at +190 on the core and and +300 on the memory, it did so I know turning the voltage up will work, but didn't keep it there since I know next to nothing about the process, any thoughts?

[Damocles]

In reality, nvidia cards have a bios preloaded where you can just slide that voltage all the way to the right. I can personally guarantee you that it's safe unless the card is defective to begin with. However, though I've answered this before on other threads, you may be limited by factor such as the BIOS, the physical wiring of the PCB or even the PCI-E power connector (which nothing can be done about). You can write and flash your own custom bios, or take apart your card and short the resistors next to the PCI-E power connector with solder. Both of which WILL VOID YOUR WARRANTY.

[Ren Heika]

Thanks for the reply! I may do a custom bios at this point since I have done that before, this is the default Nvidia PCB for the Titan Black but I seem to be having issues with the power limit as well. I'll try maybe sliding all the way to the right though with the voltage, I think I did see something on GPUz at one point that said Vpro which I'm guessing means voltage protection down on the prefcap reason but I didn't know if that was the case before, sounds like it is though.