Lenovo System x3750 M4, Installation And Service Manual

Page: 265 / 982

10. 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 170.
Removing a hot-swap fan assembly
Use this information to remove a hot-swap fan assembly.
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:
Step 1. Read the safety information and installation guidelines, see “Safety” on page v and “Installation
guidelines” on page 38.
Step 2. If the server is in a rack, slide the server out of the rack.
Step 3. Remove the top cover (see “Removing the server top cover” on page 216).
Step 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.
0000000
0000000
0000000
0000000
0000000
0000000
000000
000000
000000
000000
000000
000000
000000
000000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
Hot-swap
fan error LED
Hot-swap fan
Fan latch
Attention: To ensure proper operation, replace a failed hot-swap fan within 30 seconds.
Step 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.
Replacing a hot-swap fan assembly
Use this information to replace a hot-swap fan assembly.
The server comes standard with six speed-controlled hot-swap cooling fans.
Attention: To ensure proper operation, replace a failed hot-swap fan within 30 seconds.
To install or replace a hot-swap fan, complete the following steps:
Chapter 6
.
Removing and replacing components
251