BX924 S4 Upgrade and Maintenance Manual 167
Main memory
8.4 Replacing memory modules
8.4.1 Required tools
● Preliminary and concluding steps: tool-less
● Replacing memory modules: tool-less
8.4.2 Preliminary steps
Before replacing a memory module, perform the following steps:
Ê Disable BitLocker functionality as described in section "Disabling BitLocker
functionality" on page 66.
Ê Disable boot watchdog functionality as described in section "Disabling boot
watchdog functionality" on page 67.
Ê If applicable, open the rack door as described in section "Opening the rack
door" on page 51.
Ê Locate the defective server blade as described in section "Locating the
defective server blade" on page 43.
Ê Shut down the defective server blade as described in section "Shutting down
the server blade" on page 52.
Ê Remove the server blade from the system unit as described in section
"Removing the server blade from the system unit" on page 54.
Ê Open the server blade as described in section "Opening the server blade"
on page 55.
Ê If applicable, remove the air cowls as described in section "Removing the air
cowls" on page 171.
Upgrade and Repair Units (URU)
Average hardware task duration: 15 minutes
Average software task duration: 5 minutes
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