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GTX 980 Ti low core clocks, low temps

Yes, its like it unnecessary drops core clock just because its reaching 70c. Im going to ask EVGA and see what they say

Looks like it is - http://forums.evga.com/GTX-980-TI-BIOSVOLTAGE-HACK-m2360712-p2.aspx

Ok guys we got a problem. So the 980 ti seems to downclock from 1450 MHz to 1251 when it reaches 64c, I have monitored it and it seems like it happens exactly when it hits that temp. What gives? I want the card to stay at 1450 not downclock what so ever, I would use K-Boost, but I want to see my gpu usage.... I have prefer maximum performance enabled in the driver also. So I was wondering if you guys could shed light into this for me.


p.s. I have precision x 4.2.1 and the temp and power target maxed. 120% and 90c for temp target. (None are hitting their max thresholds)
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Sounds like you may need to disable the boost
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http://www.overclock.net/t/1522651/disable-boost-and-bake-in-max-game-stable-clocks-for-maxwell

I have not tried this... yet
 
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I have not asked yet but did set power management in the nvidia console to 'prefer max performance' in heaven 4 benchark with +50 on the core it boosted to 1455Mhz but when it reached 66c it dipped to 1442. I re-tested and it did the same at 66c.

Then I set a slightly more aggressive fan curve at the 60c mark and this time it did not drop at all from 1455Mhz.

I will ask them if there is an easy way to stop this stupid reduction in core mhz at such low temperatures. IE I don't want to be throttling unless I reach 80c
 
That is too low to be throttling. You also shouldn't have to set a fan curve to keep it under 66c as it's creating uneccesary noise, even if a minimal amount more.
 
Drollic said:
That is too low to be throttling. You also shouldn't have to set a fan curve to keep it under 66c as it's creating uneccesary noise, even if a minimal amount more.
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As a test I reset all settings. 1405Mhz but quickly hit 66c and went to 1392Mhz then at around 73c dropped again to 1380Mhz

Do I have a knackered card?
 
This is perfectly normal behaviour for the Maxwell architecture.

It does a lot of its own thing with voltages, core clocks etc based on an array of monitored values, the primary one being temp.

It wouldn't surprise me if the core clock comes hand in hand with a voltage drop to keep the core temp withing the designated envelope specified by the nvidia bios.

Your actually core voltage WILL be misreported by software on a classified card. The only valid way to measure is via the physical headers on the card with a DMM.
 
Exactly. To get 1500 MHz stable across all game I have to ramp the fan speed curve fairly significantly on my Gigabyte G1, plus my memory tops out at +445 (7900 MHz). The core has hit 1542 for Heaven 4 runs but I have to use 100% fan speed.
 
Guest2 said:
As a test I reset all settings. 1405Mhz but quickly hit 66c and went to 1392Mhz then at around 73c dropped again to 1380Mhz

Do I have a knackered card?
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Far from knackered from the sounds of it, but it does seem a bit odd for them to implement boost throttle (even if a small amount) at a temp as low as mid 60s. Saying that, you would expect it mid 70s perhaps. Can you not adjust the target temperature in afterburner to prevent this?
 
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Power target set to max (115%) or to prioritise 92c has no effect and still throttles at 66c

Im going to install precision x too instead of using afterburner
 
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Card shouldn't be throttling like that at such temperatures. My G1 doesn't do that kind of thing til it hits 91c ish (SLi = HOT!!!)

I'd personally return it and get a Hybrid, they hold clocks much better than air-based coolers. I'm switching to a pair of Hybrid cards :)
 
From the reviews I've seen/read the chips just won't go above 1550. Mine will sit happily at 1550 and not go above 68'c, but if i try and push it up to 1600 it just wont bench, no matter what I do.

The chip has an ASIC of 76.3

Gigabyte 980ti waterforce
 
I received some replied from EVGA. I hope they don't mind me posting info here.
As always, very quick replies (within a hour or so!)

The Boost clock will work a little differently I'm afraid and that isn't something that can be changed in Precision X. One of the aspects that is taken into consideration is the temperature of the GPU die and the only thing that can be done to address it, is what you've already found. This is with GPU Boost 1.0.
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That does sound too low to start throttling the GPU, but it could be an agressive curve that is causing this. It is hard to say without seeing the settings in Precision X when this happens.
In terms of warranty, we do not void the warranty for overclocking (although we cannot give support for it either), or changing the cooling systems. This is not a problem
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Unfortunately, we cannot provide support for the MSI software, we are sorry. Have you contacted their customer support for help with the settings in Afterburner?
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I said I would install Precision X....

thank you for your email. No problem, if you need support with it, please let us know
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Yeah Jedi, I run it at those clocks without any issues. Annoying thing is that temps stay within range when i push for 1600, but the card just isn't stable there.
 
TheF34RChannel said:
Did Precision make any difference for you mate?
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None whatsoever.
Defaults set in Precision. Starts out 1404Mhz boost, hits 66c and drops to 1392Mhz

I could get it to the same settings as with MSI afterburner but it needed the preset aggressive fan curve or an aggresive custom on to keep it lower than 66c so it doesnt cut back voltage and Mhz

Suppose i'll just leave it as it is with a 1455Mhz boost and +650Mhz on the memory (8316Mhz effective) Just a bit annoying the 'underclock' crap kicks in when the card is not even luke warm.

I also have not seen the power target going over 99% where as my 780 Ti would hit 113%
 
Toss3 said:
Had to watercool mine to get it stable at 1495 Mhz. 1450mhz is probably what I'd stick to on air.
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This, mines running at 1500mhz at 45-50c with watercooling. Wouldn't push for much more on air, though I don't think you will notice the difference the 50mhz brings anyway.

Also when you benchmark be sure to turn on K Boost to be absolutely certain its running flat out the whole time... Thats a tick box in Precision if you don't know.
 
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