Afterburner wont set FanSpeed below 30%

m4rcus · *Last edited by m4rcus; 04-09-2010 at 20:38.*

Hi gurus,

Today i tryed the Afterburner to set my Fan speeds with 1.6.2 beta 2 and it wouldnt let me get below 30%. At first thought it was the beta so i downloaded the 1.5.1 along with the Forceware 196.21 for my new gtx 260.
And it did work. I could set it to whisper silent 25%.
After i went back to the Forceware 197.25 for performance reasons i saw it broken again. No way setting it below 25%.

I dont wanna go back to the 196.21's but the next thing i will to is to try the 197.13s.

Please dont give me the 'flash your GPU's bios', because i just cant at the moment :\

I dont know exactly if its driver or afterburner related so im just asking nice if its a known problem and if there is a way to fix it.
thanks for your help.

edit: hmpf just read it in the 197.25 thread: "My fan speed settings in MSI Afterburner 1.5.1 doesn't work with 197.13 197.15 or 197.25. Worked with 196.75 and before. Overclocking does work"

DSK · 04-09-2010, 20:38 | posts: 17,984 | Location: Coldwells,UK

My all my 3 GTX260s would never go to 25%

only 30%

i didn't think the bios allowed it lower than that.

Unwinder · 04-09-2010, 20:44 | posts: 10,368 | Location: Taganrog, Russia

Search is your friend, don't be lazy!

m4rcus · 04-09-2010, 20:53 | posts: 96 | Location: Germany

Quote:

Originally Posted by Unwinder

Search is your friend, don't be lazy!

ye i just found your
"NVIDIA driver-level fan control interfaces will never allow you to go below the minimum allowed fan speed on low-end graphics cards with no dedicated fan controller chip. You could only bypass it with RT via low-level fan controller, working with on-die fan controller directly and bypassing any driver's limitations. NVIDIA will not accept it as a bug because it is by desing implementation of their fan control in Forceware. And Afterburner will also keep this limitation because it is and always will be driver-level fan control tool. So forget about the fix in Afterburner, sorry. RT is the only tool which can help you in that area."

sorry for bothering, i guess i just have to search and read down dozends of tutorials for setting up rivatuner for something i could do with 4 klicks in your tool. but thanks anyways ;o

Matrices · 04-26-2010, 19:55 | posts: 15

The problem is the driver. 196.21 let me set my GTX 260 to 25% fan speed using EVGA Precision or MSI Afterburner. However, the dynamic fan profiles were not working in Afterburner with those drivers.

I 'updated' my drivers to 197.25, and now the dynamic fan control works...but I can't set my fan speed to lower than 38%.

Freaking annoying. Back to RT.

Unwinder · 04-26-2010, 20:01 | posts: 10,368 | Location: Taganrog, Russia

Quote:

Originally Posted by Matrices

However, the dynamic fan profiles were not working in Afterburner with those drivers.

Define what you mean by "dynamic fan profiles". If it applies to automatic 2D/3D fan profiles manangement, then it is not a driver version dependent feature. If it applies to software automatic fan control, the it is not driver version dependent feature too. Both of these things work as soon as fixed fan control in the driver is functioning properly (both are software emulated on top of it)/

Matrices · 04-26-2010, 20:35 | posts: 15

After rebooting, it looks like the Afterburner user-defined fan profiles do work on the 196.21 drivers.

Nonetheless, the reality remains that for 197.25 drivers, Nvidia has increased the base fan speed you are allowed to set (in my case, from 25% to 38%).

Maybe Nvidia is not confident in the ability of its newest cards to last very long at 25% fan speed even in idle mode...and they were too lazy to differentiate between cards (i.e., let you choose 25% if you own a 260, but only 40% if you own a 480, etc.).