Lenovo ThinkSystem SR665 V3 User Manual page 267

i. Record where the cables are connected to the system board assembly; then, disconnect all
the cables.
j. Remove any of the following components that are installed on the system board assembly and
put them in a safe, static-protective place.
• "Remove the system fan cage" on page 269
• "Remove a memory module" on page 152
• "Remove a heat sink" on page 176
• "Remove a processor" on page 179
• "Remove the CMOS battery" on page 77
• "Remove a rear riser assembly" on page 232
• "Remove the rear OCP module" on page 228
k. Pull out the power supply units slightly. Ensure that they are disconnected from the system
board assembly.
Step 2. Remove the system board assembly.
Figure 229. Removing the system board assembly
a. Lift the two lift handles at the same time.
b. Slide the system board assembly towards the front of the chassis until it stops.
c. Tilt and lift the system board assembly out of the chassis.
Step 3. Separate the system I/O board from the processor board.
Note: To prevent the contact of the system I/O board from damage, pinch and lift the plunger on
the system I/O board upward a little and pull out the system I/O board outward. During the entire
pulling action, ensure that the system I/O board remains as horizontal as possible.
.
Chapter 5 Hardware replacement procedures
257