Originally Posted by arrow0309
Congrats, excellent job!
Man, you make me wanna go nuts to get one (sooner or later)
Maybe I should give your 980 v. 1.1 @1.31v bios a try before as well, just to see how far can I bump (max 1600 / 2052 right now, not gaming stable)
And never exceeded the 44º C, ever, what do ya think?
When I had my 980's, at least for me I didn't see any difference going from 1.281v to 1.312v but a lot of people were asking about 1.312v because of other threads so I posted that for people to try. I really cannot recommend 1.312v but if you had a really low ASIC% the additional voltage might
improve overclocking headroom or possibly make 1600Mhz stable but not a good idea for most.
Just so others know, I did test 1.312v with the 980Ti too (yesterday) and the VRMs were not happy with that voltage. I saw some VREL perfcaps which meant it was too much for the VRM to handle. I ended up settling on 1.293v (just one
single bin up from 1.281v) so 1.293v may also be something to try with the 980. I can edit it for you if needed.
Originally Posted by minsekt
ill give the new bios a try too, will report back (H2O)
well for now it looks like im stable at 1600/4000 (which didnt work with any previous bios for longer than 2minutes 1580 was the highest i could get on core) but ive been benching 1hour straight now, no proplems so far at all
Thanks for the feedback!
Please keep us posted!
Originally Posted by MikeGR7
Thanks so much for the updates Laithan!
Been making loads of BIOS experiments lately on my Aircooled Xtreme 980ti!
What i found is this:
1. My card works fine with every modded BIOS i used even the G1
2. Once a modded bios is used, my card doesn't seem to care about voltage. I tried using you 1.23xv to 1.28x and no matter what i was perfectly stable@ 1570/8000.
What i'm looking to do next:
1. Give a try to your new 1.29x version to see if it makes a difference. (Side note: As i have posted earlier my card does the above freqs on Witcher 3@4K with max temps at 55C)
2. Hell yeah i want a BIOS for the Xtreme without the throttling bug!
If 1.29 doesn't allow for better OC then my target BIOS is described as this:
a. Xtreme aircooled Bios version with lowest possible volts for lower temps maybe 1.23x
b. Throttling bug dead.
c. Maybe maxed out power limits since i've read a few posts earlier that a brother has hit a wall of some kind and it's better to be on the safe side anyway.
Laithan feel free to ask me to assist you in any way or by testing bios versions on my card!
Thanks everybody for this great thread!
Ask and you shall receive
Thank you for testing also.I would NOT RECOMMEND running the H2O BIOS VALUES ON AIR!
Especially when we just bumped the voltage. It is up to you but the cooler is "100W" better than a standard G1 cooler.. That amounts to (probably) one or two degrees C for extended full GPU loads maybe. AIR is AIR, that's the bottom line. You could have a copper cooler as big as a pumpkin and it is still going to be AIR based heat dissipation.. Still in the AIR class..I know we all want to push our GPUs even more but remember to do this responsibly
Just as a comparison as you know I am now on H2O. As I type this my idle temps are 26C and my max temps are around 55C (hours of gaming). The max temps I saw on AIR were 85C+ (worst case scenarios). That was with my case open using a custom fan curve and using supplemental fans on my GPUs. 30C is quite a variance. I am typing this just to make sure people understand the risks here.. Pay attention to temps on AIR especially since we cannot easily monitor VRM temps (what seems to be the limiting factor on these GM200 chips).
TOO MUCH HEAT CAN KILL YOUR GPU
Also just wanted to take a moment and talk about the voltage slider. It does function despite me always telling everyone to keep it maxxed out.
The voltage and power% sliders will always be an option with the BIOS' here, which means a constant reminder to everyone that the voltage and power % sliders need to be maxxed out for overclocking mode (and best performance) however for the advanced people that want to "Fine tune" things, the sliders are available and work. You can technically reduce voltage (if too much voltage feels un-necessary) by using the voltage slider. This is why it has an expanded range (0mV - 100mV) to allow for more granular tuning. When you lower the sliders you will get perfcaps
and this is expected
because you are "limiting performance" by constraining voltage and/or power to the GPU using the sliders. If the sliders are not maxxed, the perfcaps will show as a result. The MAX voltage for the AIR BIOS is now 1.243v and if less is desired, use the voltage slider. The MAX voltage for the H2O BIOS is 1.293v and if less is desired, use the voltage slider. Again you WILL see perfcaps WHEN you DON'T have BOTH power% and voltage sliders maxxed out so just know that if you lower the sliders and you see perfcaps they were placed there intentionally by lowering the sliders.
I will be posting a Gigabyte EXTREME 980Ti and new WATERFORCE version soon. I didn't forget about our friends with an EXTREME card (new waterforce included) I just haven't got that far yet. Edited by Laithan - 1/31/16 at 6:53am