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 Supply), 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).

Disassembly and Reassembly 4-21

Page 87
Image 87
NEC 120Lg manual Installing DIMMs