5. Installing and Replacing Optional DevicesExpress5800/R320e-E4, R320e-M4, R320f-E4, R320f-M4 Maintenance Guide (VMware) 123Chapter 2 Configuring and Upgrading the System5.4.2 InstallationFollow the procedure below to install the CPU/IO module:Important Refer to 5.1.3 Basics of Installation, Removal, and replacement in this Chapterand Chapter 1 (1.8 Anti-static Measures) in Safety Precautions and RegulatoryNotices before starting installing or removing options. Insert the black lever slowly and fasten the screws tightly. Be careful not tocause a shock to the device at this time.1. Firmly hold the CPU/IO module with both hands and insert it into the rack.Hold the CPU/IO module in such a way that its back panel connector faces the back of the rack andengage the guides of the module and chassis, and insert it slowly.2. Push up the black levers placed on the left and right sides of the front of the CPU/IO module, andfasten them with screws.Important Secure the handle with the screws. If it is not secured by the screws, theoperation of the CPU/IO module will be unstable. In some system statuses or settings, auto start up or integration does not takeplace when the module is connected. In such a case, check the status by usingthe ftsmaint command, and then start up the CPU/IO modules.
