whyuseusernames
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The scenario is a PC case that is fairly well ventilated, at full tilt the highest case temperature is 47 C. The system is a Ryzen 2600 consuming 95-100 watts, 1070 SC black at either power limit of ~150 watts or thermal limit of 80 C (defined in afterburner), and a 750 ti mounted 3 slots down consuming around 40 watts. The 1070 is OC'd and is at max power of 112%, but it throttles down to 1.8 ghz at 80 C. Included a picture of the setup, if that helps. The 1070 is the main issue, at full load it sits at 80 C and limiting itself usually thermally, but otherwise by power limit. I have redone the GPU's paste twice, the second time to make sure I did it right, which I had, and the heatsink is ~45-55 C, depending on which heatsink is measured by laser thermometer. I decided to try to improve thermals and acoustics, as the fans were quiet loud running MSI Afterburner's default custom fan curve that put the fans around 70%, so I bought two Noctua NF-P12 Reduxs and mounted them to the heatsink. I also added some electrical tape over the parts of the fans that do not blow on the heatsinks, in hope to try to channel the air more through the heatsinks. These fans, at 80% speed, still result in the card thermal throttling at 80 C. Based on my reading, the SC black 1070 should be cooler than 80 C under load, and the dual noctuas should also drop temperatures by a little compared to the stock shroud and fans. Is this false? If so, how could I improve my thermals to try to get either a quieter PC or higher clocks? In advance, thanks for your time. :) Update: I switched to the stock shroud + fans to reduce variables, and the GPU now runs, at stock settings, fan curve and 100% load, at 79-80C. Based on , I think it should be more around 72 C. Any ideas? Thermal paste I used is Artic Alumina (not the adhesive).
post edited by whyuseusernames - 2020/01/05 19:00:33
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HeavyHemi
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/04 21:45:08
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whyuseusernames
The scenario is a PC case that is fairly well ventilated, at full tilt the highest case temperature is 47 C. The system is a Ryzen 2600 consuming 95-100 watts, 1070 SC black at either power limit of ~150 watts or thermal limit of 80 C (defined in afterburner), and a 750 ti mounted 3 slots down consuming around 40 watts. The 1070 is OC'd and is at max power of 112%, but it throttles down to 1.8 ghz at 80 C. Included a picture of the setup, if that helps.
The 1070 is the main issue, at full load it sits at 80 C and limiting itself usually thermally, but otherwise by power limit. I have redone the GPU's paste twice, the second time to make sure I did it right, which I had, and the heatsink is ~45-55 C, depending on which heatsink is measured by laser thermometer. I decided to try to improve thermals and acoustics, as the fans were quiet loud running MSI Afterburner's default custom fan curve that put the fans around 70%, so I bought two Noctua NF-P12 Reduxs and mounted them to the heatsink. I also added some electrical tape over the parts of the fans that do not blow on the heatsinks, in hope to try to channel the air more through the heatsinks. These fans, at 80% speed, still result in the card thermal throttling at 80 C.
Based on my reading, the SC black 1070 should be cooler than 80 C under load, and the dual noctuas should also drop temperatures by a little compared to the stock shroud and fans.
Is this false? If so, how could I improve my thermals to try to get either a quieter PC or higher clocks?
In advance, thanks for your time. :)
You said the inside of your case is up to 47C? You need to get more airflow through your case. No amount of blowing 40C+ air over a GPU is going to result in cooler temps on your GPU. I can see the 3 fans on the right are intake. Where and how many exhaust fans do you have? Air needs to flow through a case. A bit of positive pressure is ideal.
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whyuseusernames
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/05 02:09:22
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The inside of the case at 47 in the top right just after the CPU's heatsink, so it is higher than the actual temperature.
I have three intake fans, but only 2 are working right now, as the splitters are in the mail. I also have two exhaust, one right after CPU cooler and one above the CPU cooler, but the one above is disabled.
I set both intakes and the exhaust to 100% to see how it would affect anything and it did drop temperature from 0-2 C and was now power limited after clocking two steps higher.
Thanks in advance for giving me your time. :D
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rjohnson11
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/05 02:34:53
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You might want to consider a slightly large PC case with intake fans at the top, intake, and exhaust. You've got an air cooler for the CPU. I highly recommend an AIO as this will also lower internal heat.
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Cool GTX
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/05 10:03:01
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Test with the PC case side removed & point a fan at the PC.
If your Temps drop - you still are not getting the heat out of the case fast enough - the ACX cooler does a great job cooling the Card; but, dumps that heat mostly into the PC case
If temps stay the same you have some sort of other issue with your cooler mounting / contact
You could add an aftermarket AIO cooler to the GPU
What is your room Temp ?
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whyuseusernames
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/05 13:20:45
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I tested with the side panel removed and dropped 1-2 C. I then pointed a box fan at the PC and ran it at the highest speed and it gave me around another degree C. Room temperature is 24-30C, and at the lowest of the range it is up to two degrees cooler, but at the same fan speed.
I would prefer not to go the AIO route just because of the expense for a product I may not be able to reuse. Furthermore, regardless of fan speed, I do not feel a lot of air leaving the heatsink with my custom fans, while with the stock I do feel more air leave, but that is at 70%+, when the card gets really loud.
I believe the mount is correct because I have done it twice just to make sure, and the heatsink is, by laser thermometer, 55 C at the edges.
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whyuseusernames
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/05 18:59:46
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Update: I switched to the stock shroud + fans to reduce variables, and the GPU now runs, at stock settings, fan curve and 100% load, at 79-80C.
Based on , I think it should be more around 72 C.
Any ideas?
Thermal paste I used is Artic Alumina (not the adhesive).
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HeavyHemi
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/05 19:29:31
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whyuseusernames
Update: I switched to the stock shroud + fans to reduce variables, and the GPU now runs, at stock settings, fan curve and 100% load, at 79-80C.
Based on , I think it should be more around 72 C.
Any ideas?
Thermal paste I used is Artic Alumina (not the adhesive).
The GPU is designed by default to run around 80C on the default fan profile under a full load. You need to get more airflow through the case. What are your fan speeds/percentage using the default fan profile?
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whyuseusernames
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/05 23:41:34
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I'm not sure if case airflow is the issue, as I did test with a box fan with no considerable temperature difference.
The fan speed at 80 C is 42%.
I'm not as sure if it is designed to run at 80 on the default fan profile under load. I can't like it here, but if you google "guru3d gtx 1070 sc review" and go to the page about thermals, theirs was notably cooler, but my environment is warmer, so I am not sure.
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ty_ger07
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/06 05:11:56
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Not to criticize or try to derail this conversation, but Arctic Alumina is kind of not very good. Like not very good at all. Like seemingly worse than Arctic Silver 5. And Arctic Silver 5 is fine, but there are significantly better options available.
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Cool GTX
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/06 09:51:51
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Grab some MX-4 Your contact pattern covered the Complete GPU Die - when you disassembled the cooler ? 1) your open case test was with a modified Cooler, you now have the stock shroud & fans reinstalled 2) 42% is SLOW for the Cooling Fans @ Max Loads. Set a Custom Curve of GPU Temp in C +10 = Fan % ---> 60C temp = 70% & 80C =v90% ....
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HeavyHemi
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/06 12:31:03
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whyuseusernames
I'm not sure if case airflow is the issue, as I did test with a box fan with no considerable temperature difference.
The fan speed at 80 C is 42%.
I'm not as sure if it is designed to run at 80 on the default fan profile under load. I can't like it here, but if you google "guru3d gtx 1070 sc review" and go to the page about thermals, theirs was notably cooler, but my environment is warmer, so I am not sure.
I've been doing this a long time and I never try to mislead anyone. If your fans are at 42% and your temps are around 80C, that is perfectly normal given the conditions you describe. I would not expect temps to drop hardly at all even using a box fan if you're using the stock fan profile as what will happen is the fans will slow to maintain ~80C or less. If you fix your airflow and fans I see no reason why you should not be able to keep ~80C with auto fan control and in the mid 70C range using manual fan control. Also as someone mentioned there are much better TIM compounds out there.
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whyuseusernames
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/06 12:54:22
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I did apply a custom fan curve, not as aggressive as prescribed, but +10% over the stock curve and increased intake/exhaust rpm by nearly double and I did net a 4C improvement. Again, this is on the default heatsink.
When I reapplied by thermal paste, It did cover the die fully and have a little at the edges. At each reapplication the die and surrounding area was cleaned by Q-tips and rubbing alcohol.
As far as thermal paste goes, I found a test by tom's hardware relating to cooling performance on an air cooled CPU. I included this page for anyone interested. Would going with NT-H1 over MX-4 be a bad choice, as they are not too far different in cost / gram, and the NT-H1 is .5C cooler at 36C, or is MX-4 longer lasting or some other variable?
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Sajin
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/06 17:43:34
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Nothing wrong with NT-H1 imo.
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HeavyHemi
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Re: GTX 1070 SC Black runs hot despite repeated replacement of thermal paste and custom fa
2020/01/06 18:14:52
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whyuseusernames
I did apply a custom fan curve, not as aggressive as prescribed, but +10% over the stock curve and increased intake/exhaust rpm by nearly double and I did net a 4C improvement. Again, this is on the default heatsink.
When I reapplied by thermal paste, It did cover the die fully and have a little at the edges. At each reapplication the die and surrounding area was cleaned by Q-tips and rubbing alcohol.
As far as thermal paste goes, I found a test by tom's hardware relating to cooling performance on an air cooled CPU. I included this page for anyone interested. Would going with NT-H1 over MX-4 be a bad choice, as they are not too far different in cost / gram, and the NT-H1 is .5C cooler at 36C, or is MX-4 longer lasting or some other variable?
Your posts are confusing because you're inconsistent in what you're doing and your testing. Do you still have case fans that are not working? What fans are installed and working and in what direction. If you're still not able to get all your fans working, then we should wait until you do to figure out the best arrangement.
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