8. Turn on the peripheral devices and the server.
9. Make sure that the ac power LED and the dc power LED on the power supply
are lit, indicating that power is being supplied to the power supply through the
power cord. During normal operation, both ac and dc power LEDs are lit. For
other combinations of LEDs, see “Power-supply LEDs” on page 179.
Removing a hot-swap fan assembly
This information provides instructions on how to remove a hot-swap fan assembly.
About this task
Attention: To ensure proper server operation, replace a failed hot-swap fan
within 30 seconds.
To remove a hot-swap-fan, complete the following steps:
Procedure
1. Read the safety information and installation guidelines, see “Safety” on page vii
and “Installation guidelines” on page 35.
2. If the server is in a rack, slide the server out of the rack.
3. Remove the top cover (see “Removing the server top cover” on page 226).
4. Pull the fan latch to the left to release the fan from the fan connector and pull
the fan out of the fan cage assembly.
Hot-swap
fan error LED
Hot-swap fan
Fan latch
Attention: To ensure proper operation, replace a failed hot-swap fan within 30
seconds.
5. If you are instructed to return the fan, follow all of the packaging instructions,
and use any packaging materials for shipping that are supplied to you.
268 System x3750 M4 Types 8722 and 8733: Installation and Service Guide
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