HP st5742 Troubleshooting Guide: HP t5740/t5745 Thin Clients and HP st5742/st5 - Page 15

2 Hardware Changes General Hardware Installation Sequence To ensure the proper installation thin client hardware components: 1. Back up any data, if necessary. 2. If the thin client is powered on: a. Turn the unit and any other attached devices off. b. Disconnect the power cord from the wall outlet. c. Disconnect any external devices or cables, such as an antenna or cable lock. WARNING! To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching. WARNING! To reduce the risk of electrical shock, fire, or damage to the equipment, do not plug telecommunications or telephone connectors into the network interface controller (NIC) receptacles. CAUTION: Static electricity can damage the electronic components of the thin client or optional equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object. 3. Remove the secure USB compartment cover. See Removing and Replacing the Secure USB Compartment Cover on page 8 for more information. 4. Remove the stand, if it is installed. See Removing the Stand on page 6 for more information. 5. Remove the side access panel and metal side cover. See Removing and Replacing the Side Access Panel and Metal Side Cover on page 10 for more information. 6. Remove any hardware that you will replace. 7. Install or replace equipment. For removal and replacement procedures, see the following sections: ● Installing the USB Device on page 13 ● Installing the PCI Express Expansion Module and PCI Express Card on page 17 ● Removing and Replacing the Battery on page 13 General Hardware Installation Sequence 7