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3
Handling CRUs
3-5
Servicing and Upgrading a DPE
Since you can replace or add any CRU without sliding the DPE out of
the cabinet, you do not have to use cabinet anti-tip devices when you
upgrade or service a DPE.
If you need to power down a DPE, either:
• Shut down the main ac lines to the DPE, or
• Remove the drive fan pack (described on page 3-35) and set the
power switch on each power supply to the off (O) position.