Before you begin:v Obtain the following:– A flat-blade screwdriver– An adjustable wrench– A 199 mm (3/4 in.) U-bolt or wire rope (similar to National ManufacturingNo. 3230, Stock No. 176-735)– Threaded nuts that fit the U-Bolt– A security cable– A lock, such as a combination lock or padlock.v Read the information in “Handling static-sensitive devices” on page 38, and“Safety information” on page 39.Complete the following steps to install a U-bolt.1. Review the safety precautions listed in “Safety information” on page 39.2. Remove any media (diskettes, CDs, or tapes) from the drives and shut downyour operating system.3. Turn off the computer and all attached devices and disconnect all externalcables and power cords; then, remove the cover. See “Removing the computercover” on page 59 for details.4. Use a screwdriver to remove the two metal knockouts.5. Insert the U-bolt through the rear panel; then, attach and tighten the nuts.6. If you have other options to install or remove, do so now.7. Replace the computer cover. See “Installing the cover” on page 69 for moredetails.8. Thread the cable through the U-bolt and around an object that is a part of orpermanently secured to the building structure or foundation, and from which itcannot be removed; then, fasten the cable ends together with a lock.9. Reconnect the external cables and power cords; then, turn on the attacheddevices and the computer.Installing the coverThe following information describes the cover installation procedure.Chapter 5. Installing options 69
