Compaq ProLiant 1000 ProLiant Server Troubleshooting Guide - Page 150

Error Prevention Power Redundancy Considerations If available for your server, power redundancy protects your server from power failures caused by one of the following: • Power failure in one of the two AC circuits providing power to the server • Accidentally unplugging one of the power cords providing power to the server • Failure of one power supply (or SPM, if applicable to your server) IMPORTANT: The power redundancy described in this section is not the same as protection provided by a UPS. In the event of a catastrophic power failure affecting each power cord providing power to the server, the server loses power and shuts down. To provide complete power protection, HP recommends installing a suitable UPS. Refer to your server-specific user documentation to determine what power redundancy requirements are necessary for your server. Preventing Grounding Problems For proper operation and safety, the server must be properly grounded. Refer to your server-specific user documentation for information about properly grounding your server. Preventing Temperature Problems For continued safe and reliable operation of the equipment, install the server in a well-ventilated, climate-controlled environment. The maximum recommended ambient operating temperature (TMRA) for most server products is 35°C (95°F). The temperature in the room where the rack is located should not exceed 35°C (95°F). The operating temperature inside the rack is always higher than the room temperature and is dependent on the configuration of equipment in your rack. The TMRA for each piece of equipment should be checked before installation. 6-10 HP Servers Troubleshooting Guide