Question Mysterious Overheating

[HakaseLA]

Hello. I got an AMD R9 270 (not 270x), by Gigabyte (GV-R927OC-2GD).

Max temp is 100ºC according to this site: https://safetemp.blogspot.com/2016/01/amd-radeon-r9-270-max-temp.html

I changed thermal paste just a couple days ago, because according to FurMark (GPU stress test), I'm getting between 90-92ºC in half a hour, with fans at 96%. The overheating continues. According to R9 270's reviews (unknown whether it's the overclocked Gigabyte's model or not), degrees should be around the 60s... though I neither know if what they tested would use 100% of GPU either; perhaps no games would use 100% of this GPU back in 2014?

If I changed thermal paste, what else could cause overheating? Do note: My motherboard is tall (ASUS A55BM-K) , but my chasis is low; Which means the GPU is placed very near to the bottom, leaving little room for the fans. Could that be?

I mean, I can play for a while, but I can't leave Blender rendering a CGI video or layer during sleep at night. Lowering GPU settings isn't an option by today's standards, hardware is quite old.

 

[CelicaGT]

Poor case airflow could be an issue. Remove the case side and see if the issue resolves or at least eases. If it does then you have an answer. As for GPU usage and temperature. IF the reviews are reputable then yes, the thermal testing would be done at 100% load, however, different applications stress different parts of the GPU. Furmark stresses the hardware heavily, and may not be a good representation of what you will see in gaming, or more importantly Blender. I would suggest testing the GPU in the applications you actually use to get a good gauge on thermals while you actively monitor.

Some further thoughts: As you noted this is older hardware. Assuming your case airflow is sufficient, and the cooler is properly seated with good thermal paste coverage (Always recheck your work if in doubt) then applications like Afterburner may still support that card which will allow a custom fan profile and perhaps a drop in clockspeed if it is an overclocked sample.

 

[bniknafs9]

your cpu usually shut down by itself at 100 degrees, celsius .
gpu temps can reach above 100 too to almost 110 .

 

[james blackhawk]

I had this issue recently and discovered my GPU fans weren't actually spinning at all. Afterburner shows the fan speeds increasing along the temp curve, but it's all a lie. Sounds like a silly question, but have you verified they are actually spinning?

 

[Karadjgne]

Furmark is brutal on a gpu. There's even a disclaimer that should not be taken lightly, Furmark is known as a gpu killer, literally.

If you think of Furmark for a gpu is close enough to AVX2 for a cpu, you'd not be far off the mark.

Furmark is not a stress test, not in the way blender, Msi Kombuster or Firestrike are stress tests, it's more a Torture test. So if hitting 90's in Furmark, blender would be in the 80's, with rising temps due to any failures in airflow.