Acnodes FPC 8759 - Manual (Page 13)

3.
System Assembly
3-1.
Open the Chassis Cover
The motherboard and RAM module can be replaced by opening the chassis
cover, which is located on the back side of the system. Please follow the steps
below to open the chassis cover.
1. Turn to the back side of the
system and loosen the thumb
screws (x2) to release the cable
cover first.
2. Loosen the hex socket cap
screws (x8) to open the back
cover of the system.
* An allen wrench is included in
the package for simple assembly.
Please use it to tighten/loosen the
screws.