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[Official] NVIDIA GTX 780 Owner's Club - Page 2461

post #24601 of 24922
Quote:
Originally Posted by Tugainuk View Post

Hey guys new here, both to forum and over clocking in general.

started gaming at 2k so my 780 is now crying a bit so i thought i would overclock it, everything is fine till out of nowhere for a second my voltages goes from 1150 to 1000 and then back up

my system specs are:
Mother Board: Asus VII hero
CPU: I7 4790k @ 4.4 ghz
GPU: Gtx 780 SC ACX
PSU: EVGA SuperNOVA 1200 P2
Sound Card: Sound Baster Z

Im using MSI afterburner and curently have
core volt at 0
106% power limit with temp limit of 95c
core clock at 70
mem clock at 300

which works fine till the voltage spikes down and up randomly my temp while testing doesnt go above 65c


any help will be tremendously appreciated

Hi, first of all max out the power limit bar (110%) then with core clock at 0 start to put some MHz +20 then +40 and watch the power limit if it goes 110% it means that the card will downclock (thats why you see voltage dropping cause of the 106% limit).
post #24602 of 24922
I recently tried flashing the BIOS in my ASUS GTX780-DC2OC-3GD5 All I remember of the BIOS version was that the last part had a B in it. The flash failed, but when I went to revert it to the original BIOS that one failed as well. I tried out the skynet BIOS that was listed in this thread, which allowed the system to boot properly, but now the card is incredibly unstable under load. I orignally wanted to flash the BIOS to have access to a fan speed lower than 37%, which it is currently minimized at. Anyone have any better ideas for BIOS to try out?

Update: I tried another BIOS from techpowerup and I can now run it at the same OC as it originally was, but its still quite a bit unstable. The entire screen keeps blacking out for a fraction of a second when I put load on the card.
Edited by casper5632 - 2/27/16 at 12:18pm
post #24603 of 24922
i cant go past 106 for some reason so not sure how i should do it
post #24604 of 24922
Quote:
Originally Posted by casper5632 View Post

I recently tried flashing the BIOS in my ASUS GTX780-DC2OC-3GD5 All I remember of the BIOS version was that the last part had a B in it. The flash failed, but when I went to revert it to the original BIOS that one failed as well. I tried out the skynet BIOS that was listed in this thread, which allowed the system to boot properly, but now the card is incredibly unstable under load. I orignally wanted to flash the BIOS to have access to a fan speed lower than 37%, which it is currently minimized at. Anyone have any better ideas for BIOS to try out?

Update: I tried another BIOS from techpowerup and I can now run it at the same OC as it originally was, but its still quite a bit unstable. The entire screen keeps blacking out for a fraction of a second when I put load on the card.
Did you save your original bios from Gpuz?
post #24605 of 24922
I thought I did but when I flashed back I couldent get any video at all. I eventually found a BIOS that worked properly, but now that ive already flashed it I might as well get something out of it.
post #24606 of 24922
Quote:
Originally Posted by casper5632 View Post

I thought I did but when I flashed back I couldent get any video at all. I eventually found a BIOS that worked properly, but now that ive already flashed it I might as well get something out of it.
my Asus DcU2 needed Rev4 bios. You should try to find the original bios.
post #24607 of 24922
It seems as stable as it was before at the moment. It took a few tries but eventually I found a standard BIOS that was stable. I was hoping to flash the bios to give me more freedom to lower the fan speed.
post #24608 of 24922
Do you know how to overclock?
post #24609 of 24922
Yeah, I pretty much have it as pushed as it can go. Max core goes up to 1241 without being unstable which more that suits my needs. At the moment I am mostly worried about idle volume.
post #24610 of 24922
Quote:
Originally Posted by Tugainuk View Post

i cant go past 106 for some reason so not sure how i should do it

Just saw that the max power target in Evga is 106% so start from 0 core clock to +20 and see if its stable (run some benchmark or try a game) if it is and its not down clocking add another 20.
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