IBM 6000R Hardware Maintenance Manual - Page 39

Temperature checkout Proper cooling of the system is important for proper operation and system reliability. For a typical Netfinity server, you should make sure: • Each of the drive bays has either a drive or a filler panel installed • Each of the power supply bays has either a power supply or a filler panel installed • The top cover is in place during normal operation • There is at least 50 mm (2 inches) of ventilated space at the sides of the server and 100 mm (4 inches) at the rear of the server • The top cover is removed for no longer than 30 minutes while the server is operating • The processor housing cover covering the processor and memory area is removed for no longer that ten minutes while the server is operating • A removed hot-swap drive is replaced within two minutes of removal • Cables for optional adapters are routed according to the instructions provided with the adapters (ensure that cables are not restricting air flow) • The fans are operating correctly and the air flow is good • A failed fan is replaced within 48 hours In addition, ensure that the environmental specifications for the system are met. See "Features and specifications" on page 3. Note: The speed of the fans will increase if: • One fan fails. • Ambient temperature gets too high. For more information on specific temperature error messages, see "Temperature error messages" on page 182. Diagnosing errors To find solutions to problems that have definite symptoms, see "Error symptoms" on page 166. If you cannot find the problem there, go to "Starting the diagnostic programs" on page 17 to test the server. If you have just added new software or a new option and the server is not working, do the following before using the error symptoms table: • Remove the software or device that you just added. • Run the diagnostic tests to determine if the server is running correctly. Diagnostics 27