NEC POWERMATE ES 5200 - SERVICE, Service Manual

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3-64 Disassembly and Reassembly
Riser Board Removal
The following sections describe how to remove the riser board from small
desktop, desktop, and minitower systems.
Removing the Riser Board — Small Desktop
Remove the riser board from a small desktop system by following these steps.
1. Turn off the system and disconnect the system power cord.
2. Ensure that all external cables are disconnected from the front and rear of
the system.
3.
Remove the system unit cover (see “Removing the Small Desktop or
Desktop Cover”).
4.
Remove the internal hard drive (see “Removing a 3 1/2-Inch Hard Drive —
Small Desktop”).
5. Remove the system board (see “Removing the System Board — Small
Desktop”).
6. Remove any expansion boards (see “Removing an Expansion Board —
Small Desktop”).
7.
Label and disconnect any cables connected to the front or back of the riser
board.
8.
Remove the six screws securing the riser board to the chassis (see the
following figure).
Locating the Riser Board Screws — Small Desktop
A – Small Desktop Riser Board Screw
9. Pull the riser board directly away from the standoffs on the chassis wall and
then lift the riser board out of the system unit.