120 Troubleshooting Your System
Action
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. Before performing any procedure, see your Product Information Guide for
complete information about safety precautions, working inside the computer and protecting against electrostatic
discharge.
1
Run the appropriate diagnostic test. See "Using Server Administrator Diagnostics" on page131.
2
Open the system. See "Opening and Closing the System" on page 54.
CAUTION: The cooling fans are hot-pluggable. To maintain proper cooling while the system is on, only replace
one fan at a time.
3
Locate the faulty fan indicated by the LCD display or diagnostic software. For the identification
number of each fan, see Figure3-9.
4
Ensure that the faulty fan's power cable is firmly attached to the fan power connector. See "System
Fans" on page65.
NOTE: Wait 30 seconds for the system to recognize the fan and determine whether it is working properly.
5
If the problem is not resolved, install a new fan. See "System Fans" on page65.
If the replacement fan is working properly, close the system. See "Opening and Closing the System" on
page54.
If the replacement fan does not operate, see "Getting Help" on page147.
Troubleshooting System Memory
Problem
• Faulty memory module.
• Faulty system board.
• Front-panel status LCD indicates a problem with system memory.
Action
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. Before performing any procedure, see your Product Information Guide for
complete information about safety precautions, working inside the computer and protecting against electrostatic
discharge.
1
Run the appropriate online diagnostic test. See "Using Server Administrator Diagnostics" on page131.
2
Turn on the system and attached peripherals.
If an error message does not appear, continue to the next step.
If an error messages appears, go to step 11.
Book.book Page 120 Friday, February 3, 2006 11:09 AM