

Core Boost: With premium layout and fully digital power design to support more cores and provide better performance.Lightning Fast Game experience: 1x TURBO M.2, AMD Turbo USB 3.2 GEN2, Store MI technology.Extended Heatsink Design: MSI extended PWM heatsink and enhanced circuit design ensures even high-end processors to run in full speed.Supports DDR4 Memory, up to 4133(OC) MHz.Supports 1st, 2nd and 3rd Gen AMD Ryzen / Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon Graphics / Athlon with Radeon Vega Graphics Desktop Processors for Socket AM4.Ethernet interface type: Gigabit Ethernet, LAN controller: Realtek 8111H Supported storage drive interfaces: SATA III, Supported storage drive types: HDD & SSD, RAID levels: 0, 1, 10. Supported memory types: DDR4-SDRAM, Maximum internal memory: 128 GB, Memory slots type: DIMM. Processor manufacturer: AMD, Processor socket: Socket AM4, Compatible processor series: AMD Ryzen™ 3, AMD Ryzen™ 5, AMD Ryzen™ 7, 3rd Generation AMD Ryzen™ 9. It's bit nuisance because 50% of the time I'm not able to control the fan in sys_fan3 outside BIOS and I'm definitely not going to use that fan splitter again.MSI B450 TOMAHAWK MAX II.

So yeah I'm just curious if there is anything I can do about this?

Then just one day the splitter stopped working (just 1 fan out of 2 spinning at a time). When I got this motherboard sys_fan3 was still working and I was using Noctua's fan splitter to connect 2 fans to it. I did try with other cables and swapped fans around but nothing really changes. My other case fans on the other headers (sys_fan2 and sys_fan1) will work even at 20% just fine. The issue is that any fan I plug on it won't spin unless it's at least 50%. I got issues with sys_fan3 header that is located in the same row with USB, power/reset, rgb etc. This is the motherboard I got, I've been using it for about 10 months and it was brand new. I made post about this thing couple months ago but I'm going to make a new topic about it again because the issue appeared once again.
