Lenovo 653417U, Installation And User Manual

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9. Connect the cables from the power supply to the internal devices.
10.
Install the DIMM air baffle (see “Removing and installing the DIMM air baffle” on page 31).
11. Install the cover (see “Removing and installing the cover” on page 29).
12. Slide the server into the rack.
13. Reconnect the ac power cord into the connector on the back of the power supply.
14. Reconnect all external cables that were disconnected.
15. Connect the other end of the ac power cord into a properly grounded electrical outlet.
16. Press the power-control button (see “Turning on the server” on page 22.
17. Make sure that the power-on LED on the front of the server is lit.
Replacing a fan assembly
The server comes with five replaceable cooling fans. Use the following procedures to replace a fan.
Removing a fan assembly
To remove any of the five replaceable fans, complete the following steps:
1. Read the safety information in “Safety” on page vii and “Installation guidelines” on page 25.
2. Turn off the server and all peripheral devices, and disconnect the power cords and all external cables.
3. Remove the server from the rack and remove the cover (see “Removing and installing the cover” on
page 29).
4.
Reconnect the power cord; then, turn on the server.
Attention: Operating the server for extended periods of time (more than 30 minutes) with the cover
removed might damage server components.
5.
Determine which fan to replace by checking the LEDs on the system board (see “System-board LEDs”
on page 21); a lit LED indicates the fan to replace.
6. Turn off the server; then, disconnect the power cord again.
7. Remove the DIMM air baffle (see “Removing and installing the DIMM air baffle” on page 31).
8. Remove the failed fan from the server:
a. Disconnect the fan cable from the system board (see “System-board internal connectors” on page
16). You may need to disengage the cables from cable retention clips. Note the routing of the fan
cable to the connector; you will have to route the fan cable the same way when you install the fan.
b.
Grasp the top of the fan with your index finger and thumb and lift the fan out of the server.
Chapter 6. Replacing CRUs and FRUs
67