Dell PowerEdge R710 Series Hardware Owner's Manual page 149

7 Remove the two riser boards. See "Removing Expansion-Card Riser 1" and
"Removing Expansion-Card Riser 2."
8 Remove the fan bracket. See "Removing the Fan Bracket."
9 Six 3.5-inch hard-drive chassis only: Remove the SAS backplane. See
"Removing the SAS Backplane."
CAUTION:
To prevent damage to the drives and backplane, you must remove the
SAS drives from the system before removing the backplane.
CAUTION:
You must note the number of each hard drive and temporarily label
them before removal to ensure that you can replace them in the same locations.
Remove all hard drives. See "Removing a Hot-Swap Hard Drive."
a
Disconnect the power and interface cables from the SAS backplane.
b
See Figure 3-35.
Pull the blue latch toward the front of the system and slide the
c
backplane upward.
When the backplane cannot slide upward any farther, pull the
d
backplane toward the back of the system to remove it from the
retention hooks.
Lift the board out of the system, being careful to avoid damaging
e
components on the face of the board.
Place the SAS backplane face down on a work surface.
f
10 Disconnect all cables from the system board.
11 Remove the system board assembly:
Pull up the spring-loaded blue retention pin located in the center of
a
the system board, and then slide the system board assembly toward
the front end of the chassis.
WARNING:
Do not lift the system board by the memory modules latches,
processor heatsink, or any component on the system board.
Grasp the system board assembly by the edges of the system board
b
tray, and lift the assembly from the chassis. See Figure 3-36.
Installing System Components
149