Specifications

2-4 Compaq ProLiant ML350 Maintenance and Service Guide
Preparation Procedures
WARNING: Only authorized technicians trained by Compaq should attempt to repair this
equipment. Because of the complexity of the individual boards and subassemblies, no one
should attempt to make repairs at the component level or to make modifications to any printed
wiring board. Improper repairs can create a safety hazard.
CAUTION: Electrostatic discharge can damage electronic components. Be sure you are
properly grounded (earthed) before beginning any installation procedure. See “Electrostatic
Discharge” earlier in this chapter for more information.
Before beginning any removal and replacement procedure for non-hot-plug devices:
1. Power down the ProLiant ML350 server and any peripheral devices.
2. Disconnect the AC power cord from the AC outlet, and then disconnect from the server.
3. Disconnect all external peripheral devices from the server.
NOTE: If you have installed a rack upgrade kit, you must remove the ProLiant ML350 server from the
rack and place it on a sturdy table or workbench. Refer to the Compaq ProLiant ML350 Setup and
Installation Guide for instructions.
Rack Warnings
WARNING: To reduce the risk of personal injury or damage to the equipment:
■ Always load the heaviest item first, and load the rack from the bottom up. This step makes
the rack “bottom-heavy” and helps prevent the rack from becoming unstable.
■ The bottom stabilizers on the equipment must be fully extended. Be sure that the
equipment is properly supported/braced when installing options and cards.
■ Extend only one component at a time. A rack may become unstable if more than one
component is extended for any reason. Be sure that the rack is adequately stabilized
before extending a component outside the rack.
■ Before beginning work on the rack, be sure that the leveling jacks are extended to the
floor, that the full weight of the rack rests on the level floor, and that either stabilizers are
installed or multiple racks are coupled for stability.
■ Because the rack allows you to stack computer components on a vertical rather than
horizontal plane, you must take precautions to provide for rack stability and safety and to
protect both personnel and property. Heed all cautions and warnings in the installation
instructions that come with the server.
■ Tipping can cause injury or death.
WARNING: To reduce the risk of personal injury, fire, or damage to the equipment, do not
overload the AC supply branch circuit that provides power to the rack.