TX120 S3 Upgrade and Maintenance Manual 261
Processors
Ê If BitLocker functionality is used and has been disabled before starting the
maintenance task, re-enable BitLocker as described in section "Enabling
BitLocker functionality" on page 103.
11.3 Replacing the processor heat sink
11.3.1 Required tools
● Preliminary and concluding steps: tool-less
● Removing and installing the processor heat sink:
– Phillips PH2 / (+) No. 2 screw driver
11.3.2 Preliminary steps
Before replacing the processor heat sink, perform the following steps:
Ê Disable BitLocker functionality as described in section "Disabling BitLocker
functionality" on page 79.
Ê Disable boot watchdog functionality as described in section "Disabling
SVOM boot watchdog functionality" on page 80.
Ê Locate the defective server as described in section "Locating the defective
server" on page 50.
Ê Shut down the server and disconnect the AC power cord from the system as
described in section "Shutting down the server" on page 58.
Ê Remove the server cover as described in section "Opening the server" on
page 61.
Field Replaceable Units (FRU)
Average task duration: 15 minutes
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