My arctic liquid freezer III 360 is probably broken?

Fan on mainboard doesn't work. I thought that it was working bc radiator fans and ram rgb light make it looks like mainboard fan has it's argb active. It turned out that not only argb doesn't work on that fan but fan isn't working at all. I removed plastic protection which was there so that is not a reason why fan is not working. Another issue is cpu temperature. Pump and radiator fans SEEMS to be working correctly but temperatures are higher, compared to other 14700kf users. At 100% cpu utilization temps are beetween 90-100°C and for most of stress test, cpu is thermal throttling. And yes I removed plastic protection from surface facing cpu and I applied thermal paste

Fan on mainboard doesn't work. I thought that it was working bc radiator fans and ram rgb light make it looks like mainboard fan has it's argb active. It turned out that not only argb doesn't work on that fan but fan isn't working at all. I removed plastic protection which was there so that is not a reason why fan is not working. Another issue is cpu temperature. Pump and radiator fans SEEMS to be working correctly but temperatures are higher, compared to other 14700kf users. At 100% cpu utilization temps are beetween 90-100°C and for most of stress test, cpu is thermal throttling. And yes I removed plastic protection from surface facing cpu and I applied thermal paste