3.When the heatsink and fan assembly is in place, connect the fan cable plug to the fan connector on the motherboard labeled CPUFAN1.

The fan cable plug is slotted so it fits only in one orientation. If it doesn’t fit completely, try reversing it.

4.Make sure that the heatsink and fan assembly is stable in place and the fan power cable plug is properly connected.

Don’t forget to connect the CPU fan cable plug. Hardware monitoring errors may occur if you fail to plug the fan cable.

5.Repeat steps 1 to 2 to install the heatsink and fan assembly for the second CPU, then connect the fan cable to the fan connector labeled CPUFAN2.

CPUFAN1 cable plug

CPUFAN2 cable plug

ASUS AP1720-E1 barebone server

2-9