Both fans are running well over 2000rpm at lowest settings in Manual mode, 1%
When using my fan profile: "22%/18% 1900rpm/1600rpm" I get ~3100rpm/3100rpm
0% = 0rpm
BIOS 327 had 3000rpm as minimum, but I didn't check the 1% rpm
BIOS 325 and all previous have worked well with Manual mode fan speeds
I'm using external monitor with USB-C port -> DP 1.4 cable, also tested with HMDI port -> HDMI cable
CPU fan replacement was not great (ASUS job a year ago), I have two of these non-gaming fan profiles, another is "21%/18% 1900rpm/1600rpm" coz CPU fan will make noise in one or the other.
1st install attempt was in Windows 10, but the BitLocker warning during install made me flash 329 via USB stick in BIOS. Then let MyAsus get another "329 file" so System Firmware is 329 in Windows "sumthing sumthing"..device manager?
Currently fans are at 1%, spinning 2200/2300rpm - I'm going back to BIOS 325