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- Joined
- 24 Nov 2018
- Posts
- 14
I have spent several days and a silly bit of $ reconfiguring my chassis. Unfortunately MSI Afterburner with 10C hysteresis is the only serious solution.
- I have tested with all the sides off of the case.
- I have tested with one monitor or two.
- I have tested at different ambient temperatures.
- I have removed my CPU Kraken 61 cooler from the front and replaced it with a Noctua DH-15 for better air flow. The Noctua isn't as nice and consistent for noise, though; it jumps up under load.
- I have installed three intake fans and one exit fan.
- I have not tried installing a separate pair of fans in a casing inserted below the GPU into a PCI slot because I've thrown enough money at this problem.
The extra fans and the DH-15 resulted at first in a noisier solution than just running the card with Afterburner at 33%. Using CPU Step Up in the BIOS settings helps to ensure that the CPU fans don't jump all over the place. I had to run at low speeds and eventually remove the side and bottom intakes in the end to prevent weird fan noise from harmonic resonance caused by the hexagonal gaps in the casing. I know that sounds strange - one fix is supposedly to space the fan a little from the filter, but I don't have the parts for that right now.
With added fan curves and CPU step up, it is quieter than my Kraken by quite a bit and 5+ degrees cooler under load. That much is pleasant, but all of this did not solve the GPU problem.
Unfortunately the GPU still wants to heat up to 50+ unless I have it or other fans on high. The problem does not appear to be not case air flow, but that the card is incapable of idling below 50 degrees. i.e. the 3D Active Fan feature for idle/light load silent running is either false advertising or my product isn't working as intended.
There appear to be one or more of several problems:
- An overheating problem on the Gigabyte video card which should be idling somewhere cooler than the 3D Active Fan cut off. This may only be replicable on cards of similar build quality.
- 3D Active Fan no longer does what it says it does, even though it used to on my 980 TI.
- BIOS firmware has fan curve that tries to power the fan at speeds below what it requires to actually function, resulting in the pulsing behavior. This should be replicable on all other cards with the same firmware unless there's some other fault.
- A lack of a significant enough hysteresis setting in the BIOS.
The latter two are the only sensible way so far to fix this, so until Gigabyte fixes their firmware to match the hardware, third party software really is the least hassle. I sent in a GPU-Z log file of the event: Gigabyte customer support claim the log file didn't show it happening. Not to be too rude, but I fear for the hardware when employees don't know how to scroll down a text file.
Using MSI Afterburner with a 10 degree hysteresis setting means that the fan kicks off only once every thirty minutes or so, and runs continuously for a bit instead of pulsing. This renders it unnoticeable enough that I wouldn't have picked up on it to begin with, and should really be written into the GPU's BIOS to avoid customer complaints.
- I have tested with all the sides off of the case.
- I have tested with one monitor or two.
- I have tested at different ambient temperatures.
- I have removed my CPU Kraken 61 cooler from the front and replaced it with a Noctua DH-15 for better air flow. The Noctua isn't as nice and consistent for noise, though; it jumps up under load.
- I have installed three intake fans and one exit fan.
- I have not tried installing a separate pair of fans in a casing inserted below the GPU into a PCI slot because I've thrown enough money at this problem.
The extra fans and the DH-15 resulted at first in a noisier solution than just running the card with Afterburner at 33%. Using CPU Step Up in the BIOS settings helps to ensure that the CPU fans don't jump all over the place. I had to run at low speeds and eventually remove the side and bottom intakes in the end to prevent weird fan noise from harmonic resonance caused by the hexagonal gaps in the casing. I know that sounds strange - one fix is supposedly to space the fan a little from the filter, but I don't have the parts for that right now.
With added fan curves and CPU step up, it is quieter than my Kraken by quite a bit and 5+ degrees cooler under load. That much is pleasant, but all of this did not solve the GPU problem.
Unfortunately the GPU still wants to heat up to 50+ unless I have it or other fans on high. The problem does not appear to be not case air flow, but that the card is incapable of idling below 50 degrees. i.e. the 3D Active Fan feature for idle/light load silent running is either false advertising or my product isn't working as intended.
There appear to be one or more of several problems:
- An overheating problem on the Gigabyte video card which should be idling somewhere cooler than the 3D Active Fan cut off. This may only be replicable on cards of similar build quality.
- 3D Active Fan no longer does what it says it does, even though it used to on my 980 TI.
- BIOS firmware has fan curve that tries to power the fan at speeds below what it requires to actually function, resulting in the pulsing behavior. This should be replicable on all other cards with the same firmware unless there's some other fault.
- A lack of a significant enough hysteresis setting in the BIOS.
The latter two are the only sensible way so far to fix this, so until Gigabyte fixes their firmware to match the hardware, third party software really is the least hassle. I sent in a GPU-Z log file of the event: Gigabyte customer support claim the log file didn't show it happening. Not to be too rude, but I fear for the hardware when employees don't know how to scroll down a text file.
Using MSI Afterburner with a 10 degree hysteresis setting means that the fan kicks off only once every thirty minutes or so, and runs continuously for a bit instead of pulsing. This renders it unnoticeable enough that I wouldn't have picked up on it to begin with, and should really be written into the GPU's BIOS to avoid customer complaints.
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