Disassembly and Reassembly 4-21
Installing DIMMs
1. Observe the safety and ESD precautions listed under General Information
and Static Precautions at the beginning of this chapter.
2. Open the front bezel of your system's cabinet. For tower-based systems see
Opening the Front Bezel of the Tower Cabinet in Chapter 2. For rack-mount
systems you must remove the front panels of the system chassis.
3. Shutdown the operating system (OS).
4. Press the power on/off switch on the front panel of the server (see
Front View in Chapter 1). The power-on LED goes out.
5. Power off the peripheral devices.
6. Unplug the system power cord(s) from the AC wall outlet(s).
Note: If the system power cord is connected to a power
control unit such as an UPS (Uninterruptible Power S upply),
refer to the UPS user's guide for proper power-off
procedures.
7. Remove the left-hand side access panel of the system chassis following
procedures previously described in this chapter.
!
CAUTION
For proper cooling and airflow, do not operate the system
with the side access panel removed. Always replace the
panel before powering on the system.
8. Remove the processor air duct. See Processor Air Duct Removal earlier in
this chapter.
9. If applicable, locate the appropriate DIMM sockets on the system board (see
Figure 4-14).
10. Remove the DIMM connector covers from its socket (see Figure 4-16). Save
the DIMM connector cover for future use.
Note: If you are replacing a DIMM, you must first
remove the DIMM from its socket (see Removing DIMMs
later in this chapter).