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If the system-level diagnostics tests...
Completing the replacement process
After you replace the part, you can return the failed part to Lenovo, as described in the RMA instructions
shipped with the kit. Contact technical support at
additional help with the replacement procedure.
Swapping out a power supply
Swapping out a power supply involves turning off, disconnecting, and removing the old power supply and
installing, connecting, and turning on the replacement power supply.
Before you begin
All other components in the system must be functioning properly; if not, you must contact technical support.
• The power supplies are redundant and hot-swappable.
• This procedure is written for replacing one power supply at a time.
• Power supplies are auto-ranging.
A video for this task is available at:
• YouTube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-CZwRXsocAOmi5RsaXDVZQG
Step 1.
Identify the power supply you want to replace, based on console error messages or through the
LEDs on the power supplies.
Step 2.
If you are not already grounded, properly ground yourself.
Step 3.
Turn off the power supply and disconnect the power cables:
a.
Turn off the power switch on the power supply.
b.
Open the power cord retainer, and then unplug the power cord from the power supply.
c.
Unplug the power cord from the power source.
Then...
when prompted to get to the Boot
Ctrl-C
menu:
• If you removed the controller in the
previous step, fully seat the controller
module you are servicing in the chassis.
The controller module boots up when
fully seated.
5. Select Boot to maintenance mode by
typing:
boot_diags
6. Repeat all of the steps necessary to
perform the system level diagnostics for
the cache module.
7. Exit Maintenance mode by entering the
following command:
After you issue the command, wait until
the system stops at the LOADER prompt.
8. Rerun the system-level diagnostic test.
Lenovo Data Center Support
Chapter 4
halt
if you need the RMA number or
.
Hardware replacement procedures
29
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