HP Tc2120 serhp server tc2120 operations and maintenance guide - english - Page 18

3 Installing and Configuring Opening and Closing the hp server This section describes how to remove and replace the left side cover and the upper front bezel of the hp server tc2120. WARNING Before removing the cover, always disconnect the power cord and unplug telephone cables. Disconnect the power cord to avoid exposure to high energy levels that may cause burns when parts are short-circuited by metal objects such as tools or jewelry. Disconnect telephone cables to avoid exposure to shock hazard from telephone ringing voltages. The left side cover must be removed to access the internal components and mass storage devices; the upper front bezel must be removed to access the mass storage devices in the front drive bays (or shelves). To remove the upper front bezel, you first need to remove the left side cover. NOTE You do not need to remove the lower front bezel of the hp server tc2120 to install internal accessories, such as memory or mass storage. Removing the Left Side Cover To remove the left side cover, follow these steps: Switch off the monitor and hp server, and disconnect all power cords and any telecommunication cables. If necessary, label each one to expedite re-assembly. 1. If necessary, unlock the left side cover (using the key) at the rear of the server. Initially, the keys are attached to the rear of the hp server. 12