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2. Press the tab 1 and carefully pull the handle at the same time to slide the hot-swap redundant power
supply out of the chassis.
Note: Do not use too much force. You can rst carefully slide the hot-swap redundant power supply a
little bit out to release it from the secured position. Then, completely slide it out of the chassis.
ID
Figure64. Removing a hot-swap redundant power supply
3. Install a new hot-swap redundant power supply. See “Installing a hot-swap redundant power supply” on
page 100.
4. If you are instructed to return the old hot-swap redundant power supply, follow all packaging instructions
and use any packaging materials that are supplied to you for shipping.
Installing or replacing a heat sink
Attention: Do not open your server or attempt any repair before reading and understanding “Safety information”
on page iii
and “Guidelines” on page 67.
This topic provides instructions on how to install or replace a heat sink.
CAUTION:
The heat sink might be very hot. Turn off the server and wait three to ve minutes to let the server
cool before removing the server cover.
104 ThinkServer RD540 User Guide and Hardware Maintenance Manual