marysko Posted June 3, 2014 Share Posted June 3, 2014 I would like to kindly ask for help, because I have some serious throttling problem with my 7970m (M17xR4, 3610qm). In attached screen (which I have sent to Dell) can be seen a drop in frequencies of graphics core during 100% load (Furmark 1.12). I had repasted gpu and cpu with coollaboratory liquid pro and my temperatures never went higher than 70°C. I'm writing "had" because Dell has replaced my Gpu twice along with motherboard (reason was Primary GPU surface test failed several times) but the problem after replacing GPU is even bigger. Stock thermal compound is bad, temperature now doesn't go higher then 70°C but frequencies drops even lower (now under full load frequencies are somewhere around 500-600Mhz, not even close to 850MHz nominal at all) So it must be deffinitely thermal issue! Answer is to repaste once more- thats for certain, but even then it'll throtlle frequencies (attached picture is from repasted GPU) . Is there something more to do? Change memory pads under heatsink? Modded vBIOS? is there a chance to remove or increase TPD value perhaps rise acceptable temperatures? how? by vBIOS? or unlocked BIOS? Please help, much appreciated! (sorry for english, not native:-) Sent by Tapatalk Quote Link to comment Share on other sites More sharing options...
Khenglish Posted June 3, 2014 Share Posted June 3, 2014 Furmark causes the GPU to use far more power than any real game, so drivers slash the GPU clock even when temperatures are fine. This is normal behavior. Real games and other tests will not do this.When the 7970m has TDP throttling programs do not report a clock drop, so this is not TDP throttling. It's also not temperature throttling since the card is only at 74C. Quote Link to comment Share on other sites More sharing options...
marysko Posted June 3, 2014 Author Share Posted June 3, 2014 but wouldn't it better to avoid this, even if it is reported as normal? I think that this behaviour is similar with overclocking. as I request more power by overclocking, this start to be contra-productive by TDP throttling as it will lower already highred clocksanyway, flashing vBios will some trick? if I would increase heatspread thru better thermal compounds, it will allow me to increase voltage and thus stabile higer clocks, or on contrary using lower voltage would means less power = better TDP ratio = higer clocks even under Furmark? is there a fixed TDP limit? can it be altered? I don't know if I'm comprehending it correctly... please, what would you suggest? Sent by Tapatalk Quote Link to comment Share on other sites More sharing options...
Khenglish Posted June 4, 2014 Share Posted June 4, 2014 The driver will always throttle Furmark. You cannot stop it.The 7970m does have a TDP limit, but it is very high and you will not reach it unless you overvolt the card with a high overclock. You are nowhere near it with default voltage and clocks. This TDP limit is not affecting Furmark. It is only the driver with a built-in limitation. Quote Link to comment Share on other sites More sharing options...
marysko Posted June 4, 2014 Author Share Posted June 4, 2014 and why is that? which driver is responsible? can it be replaced? I doubt a bit cause i woun't be relevant to actual thermal state of GPU but it is. the temperature is stable only thing that differs are clocks. higher temps - lower clocks. that must be thermal issue. what other benchmarking do you suggest as more gaming relevant? mainly to se overclocking potencial... Sent by Tapatalk Quote Link to comment Share on other sites More sharing options...
cresterk Posted June 9, 2014 Share Posted June 9, 2014 Use ungine heaven or 3dmark. Furrmark creates unnecessary stress on your gpu and can damage it if used for long. 1 Quote Link to comment Share on other sites More sharing options...
marysko Posted June 17, 2014 Author Share Posted June 17, 2014 Use ungine heaven or 3dmark. Furrmark creates unnecessary stress on your gpu and can damage it if used for long. Thank you I'll do that. I just wanna get rid of that thermal throttling in case some game will do that in future. Thru afterburner I was able to force gpu actually do 110% output, but I don't know how. No throttling at all and considerably higher framerate. In Furmark I have 47fps at start (resolution 1366*768) dropping to 41-42 after few seconds. Some settings in afterburner, some overclocing (which basically drops framerate even lower) but I've (somehow) managed to forbid gpu goes in lower frequencies, it freezies @950MHz an the output was about 53-55FPS!! teperature was rising about 90'C. It was crazy, I was scared I'll fry my GPU so I've turned it off, calnceled afterburner's overclocking because my card has around 65"C at windows desktop, right after start. Then i did some reading thru various forums and figured out it was not harmfull when//if controlled so I've tried to re-create that, but unfortunately no success since. When I would able to do make a progress surely will start new thread in forum hopefully someone might be interested :D Quote Link to comment Share on other sites More sharing options...
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