IBM 8646 Hardware Maintenance Manual - Page 27

Replacing the battery, To order replacement batteries, call 1-800-772-2227 within the United States

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Table 2. Diagnostic LEDs (continued) System Error LED System board (on front panel) LED On VRM1 or VRM2 Off None Cause Action One of the microprocessor VRMs 1. Check the microprocessor VRM has failed, or a microprocessor VRM error LEDs on the system board. is installed in the wrong connector. If a microprocessor VRM error LED is on for a microprocessor VRM connector that has a terminator card installed instead of a microprocessor, the microprocessor VRMs are not installed in the correct order. See "Installing and removing a microprocessor" on page 61 for information about the correct order for installing microprocessor VRMs. Otherwise, continue with the next step. 2. Turn off the server, reseat the microprocessor VRM indicated by the lit microprocessor VRM error LED, and restart the server. 3. If the problem persists, replace the microprocessor VRM. The diagnostic LEDs have not detected a system error. None Replacing the battery When replacing the battery you must replace it with a lithium battery of the same type, from the same manufacturer. To avoid possible danger read and follow the safety statement below. To order replacement batteries, call 1-800-772-2227 within the United States, and 1-800-465-7999 or 1-800-465-6666 within Canada. Outside the U.S. and Canada, call your IBM reseller or IBM marketing representative. Note: After you replace the battery, you must reconfigure the server and reset the system date and time. Diagnostics 19

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Table 2. Diagnostic LEDs (continued)
System Error LED
(on front panel)
System board
LED
Cause
Action
On
VRM1 or VRM2
One of the microprocessor VRMs
has failed, or a microprocessor VRM
is installed in the wrong connector.
1.
Check the microprocessor VRM
error LEDs on the system board.
If a microprocessor VRM error
LED is on for a microprocessor
VRM connector that has a
terminator card installed instead
of a microprocessor, the
microprocessor VRMs are not
installed in the correct order. See
“
Installing and removing a
microprocessor
”
on page 61 for
information about the correct
order for installing
microprocessor VRMs.
Otherwise, continue with the
next step.
2.
Turn off the server, reseat the
microprocessor VRM indicated
by the lit microprocessor VRM
error LED, and restart the server.
3.
If the problem persists, replace
the microprocessor VRM.
Off
None
The diagnostic LEDs have not
detected a system error.
None
Replacing the battery
When replacing the battery you must replace it with a lithium battery of the same
type, from the same manufacturer. To avoid possible danger read and follow the
safety statement below.
To order replacement batteries, call 1-800-772-2227 within the United States, and
1-800-465-7999 or 1-800-465-6666 within Canada. Outside the U.S. and Canada, call
your IBM reseller or IBM marketing representative.
Note:
After you replace the battery, you must reconfigure the server and reset the
system date and time.
Diagnostics
19