General / Off-Topic MSI Afterburner, Hot vidcard

[Robin of Spiritwood]

Anybody have XP with using MSI Afterburner?

Got my old system back from the shop with a second hand Ti1080 transplant. It is running too hot, and buzzing like a hive with a GPU temp at 80 degrees C. It gets worse when rendering ground terrain in ED.

Since the card is overkill for ED, I'd be ok with underclocking it back to safer levels. Haven't done this before. Suggestions welcome.

 

[Morbad]

What's the exact model of the 1080 Ti? Many cards won't even ramp up fan speeds until 80C+ and the temp limit on most any GPU is well in excess of this.

Is the noise coming from the fans (you should be able test this by manually adjusting the fan speed), or is it coil whine (the chokes in the VRM can buzz at certain loads if they haven't been completely encapsulated)?

Anyway, most reasonably modern GPUs, including the 1080 Ti, have a frequency voltage curve that can either be adjusted manually in MSI AB by pressing Ctrl+F, or you can simply set voltage and frequency offsets with the sliders. The latter is easier, but the former is much more precise, and what I'd recommend. Most stock 1080 Tis overvolt a fair bit at the high-end of their frequency range, and you can probably cut power and heat without losing any performance with the right F/V curve. There is also a power slider that acts as a direct cap, relative to rated board TDP. Just reducing this is the quickest way to limit power/heat, but not the most optimal way.

 

[Robin of Spiritwood]

Thank you.

The machine used to buzz when the CPU fan died, so it might be just due to heat within the case. Manually activating the GPU fan gave no noise. The CPU fan is replaced and working fine.

The fan control graph does show that it won't come on till 60 degrees, and it ramps to max at 85 to 90 as you describe. Made a cooling profile with decreased power to 80% and manually reset the fan speed graph to max at 70 instead. A simple straight line from 60 to 70.

That has solved the overheating, with no noticeable change to ED performance. It is undoubtably suboptimal. But sufficient, perhaps.

Clearly, a low emission mod with thermal spread would be better.