Ok tried that but i still get cpu fan error on the boot up screen. i have tried both cpu fan headers and still get the same message. will upgrade the bios tonight. tried to update the bios from the auto update but 0506 doesn't come up could you give me the link to the update page.. A cpu fan is attached on the top of the cpu heatsink and plays a crucial role in cooling down the processor. the fan cable is plugged to the special connector on the motherboard that allows a user to regulate the fan speed. basic input-output system (bios) is a special code integrated into the motherboard chip. use bios to access fan speed options.. Use one of the 4 pin system fan headers on the mb. for the power to the case fan hub. you need to plug in the cpu fan into the cpu port or you get that message every time..
1.1 knowing bios the new asus uefi bios is a unified extensible interface that complies with uefi cpu voltage output, cpu/chassis/power fan speed, and sata information displays the system properties of the selected mode. click < or > to switch ez system tuning modes. Hello, i just purchased an asrock 990fx-extreme4 motherboard for use with an amd 1090t processor. everything is working well except for fan control. i would like to use the uefi fan control capability to manage the cpu fan and rear chassis fan. i'm on the latest bios version which is 2.0.. 4 asus x99-e series bios manual the new asus uefi bios is a unified extensible interface that complies with uefi displays the cpu fan’s speed. click the button to manually tune the fans enables or disables the sata raid mode for intel rapid storage technology saves the changes.