Troubleshooting 3-3
Safety Considerations
Follow the procedures listed below to ensure safe handling of components and to prevent harm to both you
and the server:
• Use an anti-static wrist strap and a grounding mat, such as those included in the Electrically
Conductive Field Service Kit.
• Handle PCAs and components by the edges only. Do not touch any metal-edge connectors or any
electrical components.
The keyswitch does NOT have an OFF position. There is a STANDBY position in which all but Three
FRUs are turned off. The three FRUs which are still ON and should not be removed or installed with
power applied are the POWER SUPPLY, POWER MONITOR, AND THE LC DISPLAY. Install and
deinstall the Power Supply, Power Monitor, and the LC Display as follows:
1. Unplug the system.
2. Wait 10 seconds.
3. Proceed To Deinstall/install FRU.
Hard Failures
Hard failures are solid failures. They usually occur during power on, selftest and system initialization, and
they may halt the system. The steps to take when troubleshooting a hard failure are:
1. Obtain front panel display status. Also note any system console messages.
2. Find the chassis code in Table 3-7., hardware troubleshooting. Note the cause and follow the steps
listed in the action column.
In some cases, failure messages related to the power system are displayed. Refer to the Power System
messages Tables 3-1 through 3-5 for cause and action for each message.
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