User manual

19 Chapter 3 Operation
Figure 3.4: Rear panel of motherboard version
There is a ground screw with a washer located on the lower right of the
rear panel. This will protect the system in case the electric leakage hap-
pens.
3.3 Replacing the Cooling Fan
There are two cooling fans behind the front panel. They are easily main-
tained. The fans provide the system with ample cooling by blowing air
toward the rear. Please proceed according to the instructions below.
1. Remove the top cover.
2. Unplug the fan power connector.
3. Loosen the thumbscrew on top of the fan unit and then gently pull it
out.
4. Loosen four screws on the fan bracket and the four screws on the
fan guard and replace it with a new one.
5. Fix the new cooling fan on the fan guard and the bracket by screw-
ing in the eight screws. (see Figure 3.5)
6. Replace the fan unit into the chassis by tightening the thumbscrew
and reconnecting the fan power connector.
7. Replace the top cover and fasten it.