What is the "safe" voltage for a Gigabyte gtx 780?

[tektechnician]

I can easily get my GTX 780 stable at default 1.15v at 12.15ghz, however when doing a voltage boost up to 1.225v in EVGA's precision 16 software, it allows me to push the GPU on air to 1.25ghz. I'm still very confused about one thing however, when looking in hwinfo64, it reports a 1.15v [core] voltage and a 1.225v GPU voltage, what is the difference and is it safe? because I can for some reason push the GPU voltage all the way up to 1.3v but the core voltage stays the same. GV-N780OC-3GD is the model name of my GPU, any help in assisting me understand the differences between the two voltages is appreciated.

 

[nikoli707]

your card is not passing 1.212v(there is .025v of llc also). that is the limit for your card on the stock bios. use msi afterburner. otherwise as long as your staying under 80c then your fine.

 

[tektechnician]

your card is not passing 1.212v(there is .025v of llc also). that is the limit for your card on the stock bios. use msi afterburner. otherwise as long as your staying under 80c then your fine.

Will a high voltage damage it? as far as I understand you cannot damage the GPU as the nVidia engineers have limited it in the bios, I'm asking as I am experiencing a GPU screen flicker in two of my 4 screen set up, 3 are running off the gpu and 1 off the IGPU, two of them render themselves useless as they strobe and only the first 30pixels of the screen is usable, this rarely occurrs once every 2-3 months, it has happened before but otherwise, it works nomally.

 

[nikoli707]

sounds like your artifacting due to the overclock. either lower the core frequency or raise the vcore. i have quickly benched my 780 at 1.2850v and 1375mhz with a 133% power target and hit 88c. your not going to damage your card with stock voltage on the stock bios. you will hit a wall with your 110% power limit which will throttle your clocks. also as long as you leave the temp target at stock(79-82c), it will again throttle. and unless you flash the bios and hack afterburner, your not going to get any higher than 1.212v which is fine.