Hello, I have a GTX970 Gamer 4G, Windows 10, latest MSI Afterburner software installed, and have the following issue: The first issue is, that the bios/hardware fan control seems to be "stupid" programmed and not designed smart. Problem is, that in games, which the GPU isnt stressed that much, for example Diablo 3, the temperature unfortunately toggles around the point of 60°C, which is also the trigger point of the fans getting kicked in. The results in the fans always kicking on/off/on/off/on/off which I am sure is not good for them over time. So fans are off, GPU gets to 60°c, fans kick in, temperatures lowers really fast to 59°C, fans kick off, then GPU goes fast to 60°c again, fans kick on, and so on... This is not smart behavior of the hardware fan control. There should be a logic, which detects this kind of situation, and for example lets the fan always on at this point, or always off. So I wanted to get around this issue by software fan control via MSI Afterburner software. Unfortunately I noticed some weird fan behavior now with software fan control activated. And it seems, that the value which the software writes to the card, is always overwritten after x ms by the bios, and so the fan again toggles on/off/on/off in an infinite loop.
This shows the issue, the fan speed always is set to zero again by bios/hardware mostly, and software and hardware seem to battle against each other: https://dl.dropboxusercontent.com/u/14937594/afterburner_fan_issue.mp4 It doesnt matter if I set change speed lower than 5000ms for example to 600 or 800ms. It is the same issue if I use bios/hardware control and the temperature jumps around 59-61°C, the bios always stops the fan the moment it goes lower than 60 and always activates it again if it rises, and this leads to permanent on/off/on/off every 2-5 seconds. The card has the newest bios.
Are you sure it's the cards latest BIOS. NV316MH.186 is the latest. An earlier Bios caused the card's fan to do what I think I'm seeing. https://forum-en.msi.com/index.php?topic=184740.0
Your video only shows the card at 33c and the fan is turning on/off? Include fan speed in Afterburner monitoring window and watch it when there is no load (card idling) and see what happens.
please read the post again or look in the video correctly. The fan profile has a 10% permanent on profile in this example... And nope older bios issue has nothing to do with this, it was a totally different issue. The plausible explanation for this is that the MSI software doesnt deactivate the hardware fan control which is a bug, and the hardware/bios always overwrites the software value again each x ms. Also the bios seems to be stupid programmed around trigger point of 60°c and has no smart control of letting fan off/on for a while, or recongizes the trigger point toggle and just let it off.