NEC 320Lb-R manual Replacing CPU Modules, Removing a CPU Module

Replacing CPU Modules

Your system contains two redundant CPU modules that are accessible from the front of the server unit.

The following subsections provide the procedures for removing and installing CPU modules.

Removing a CPU Module

1.Observe the safety and ESD precautions listed at the beginning of this chapter.

2.Unlock and open the front door on the tower cabinet or front covers on the rack-mount system. See Opening and Closing the Front Bezel earlier in this chapter.

3.Ensure that the CPU module is off-line by viewing its status LED indicators (See Figure 4-4 and Table 1-3) The state of the status LEDs should be as follows:

Status LED 1: Red

Status LED 2: Off

Thumbscrews

LED 1

LED 2

Figure 4-4. CPU Module Status LED Indicators

4.Unscrew the thumbscrews securing the locking handle to the CPU module. See Figure 4-4.

4-8 CRU Replacement and Server Upgrades