I recently built a cheap general purpose PC using the ASRock H61M/U3S3 board and I also built another PC using the ASRock Z68 Extreme4 board.
They both have a facility to automatically control the speed of the CPU fan, via options in the BIOS.
In both PC's BIOS I've set the CPU fan to 50 degrees and Fan level 3 (the initial speed of the fan is 3, and this increases if the temp goes over 50).
This works fine on the Z68 board, but for some reason on the H61 board, the fan level keeps jumping back to level 6 (I can see the level in windows using the ASRock AXTU app). The temp is well below 50.
The BIOS shows the level as 3, but ATXU (in windows) shows it as 6, I can change it back to 3 in ATXU (and I can hear the fan slow down) but I'd prefer not to have to run ATXU every time I boot the box.
Note: I don't have AXTU set to start with windows.
I'm thinking there might be a bug in the BIOS (I upgraded to the latest 1.20 version).
Does anyone else have this problem? Or know of some BIOS setting that I may have missed?
(The H61 board is only controlling the CPU fan, but on the Z68 the board is controlling the CPU and three case fans as well).
They both have a facility to automatically control the speed of the CPU fan, via options in the BIOS.
In both PC's BIOS I've set the CPU fan to 50 degrees and Fan level 3 (the initial speed of the fan is 3, and this increases if the temp goes over 50).
This works fine on the Z68 board, but for some reason on the H61 board, the fan level keeps jumping back to level 6 (I can see the level in windows using the ASRock AXTU app). The temp is well below 50.
The BIOS shows the level as 3, but ATXU (in windows) shows it as 6, I can change it back to 3 in ATXU (and I can hear the fan slow down) but I'd prefer not to have to run ATXU every time I boot the box.
Note: I don't have AXTU set to start with windows.
I'm thinking there might be a bug in the BIOS (I upgraded to the latest 1.20 version).
Does anyone else have this problem? Or know of some BIOS setting that I may have missed?
(The H61 board is only controlling the CPU fan, but on the Z68 the board is controlling the CPU and three case fans as well).
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