NEC Versa AX Disassembly Manual page 10

11. Heatplate and CPU-Fan
Below you can find how to remove the heatplate:
a. Loosen the four screws of the heatplate.
Note
The screws of the heatplate cannot be removed, as they
are locked in their position. They can only be loosened.
b. Take away the heatplate.
Fig. 15:
Note
To securely re-seat the heatplate during (re-)assembly you
should first start with screw #1 then #2 etc...
c. Disconnect the fan power cable.
Fig. 16: The power fan cable and the DC/DC board screw.
Taking away the heatplate.
Disassembly and Reassembly - 10
D