ProLiant DL140 Generation 2 Server Maintenance and Service Guide

Removal and replacement procedures 13
Pre-installation procedure
Perform the steps below before you open the server or before you remove or replace any component.
WARNING! Failure to properly turn off the server before you open the server or before your start installing/
removing components may cause serious damage as well as bodily harm.
1. Turn off the server and all the peripherals connected to it.
Refer to the “Powering down the server” section on the next page for detailed instructions on how to
completely power down the server.
2. Unplug all cables from the power outlets to avoid exposure to high energy levels that may cause burns
when parts are short-circuited by metal objects such as tools or jewelry.
If necessary, label each one to expedite reassembly.
3. Disconnect telecommunication cables to avoid exposure to shock hazard from ringing voltages.
4. Remove the top cover according to the instructions described on page 14.
5. Follow the ESD precautions listed in the previous page when handling a server component.
IMPORTANT: To streamline the configuration process, read through the entire installation/removal procedure
first and make sure you understand them before you before you begin.
Post-installation procedure
Perform the steps below after installing or removing a server component.
1. Be sure all components are installed according to the described step-by-step instructions.
2. Check to make sure you have not left loose tools or parts inside the server.
3. Reinstall any expansion board(s), peripheral(s), board cover(s), bracket (s) and system cable(s) that have
previously been removed.
4. If you have removed the air duct and/or the PCI riser board bracket, reinstall it.
5. Reinstall the top cover.
6. Connect all external cables and the AC power cord to the system.
7. Press the power button
on the front panel to turn on the server.
Powering down the server
The server does not completely power down when the power button is pressed. The button toggles between
On and Standby. The standby position removes power from most electronics and the drives, but some internal
circuitry remains active. To completely remove all power from the system, disconnect all power cords from the
server.
To power down the server:
1. Shut down server as directed by the OS documentation.
2. Press the power button
to toggle to Standby.
This places the server in standby mode changing the power LED indicator to amber. In this mode, the main
power supply output is disabled. Standby does not completely disable or remove power from the system.
3. Disconnect the AC power cord from the AC outlet and then from the server.
4. Check that the power LED indicator is turned off and that the fan noise has stopped.
5. Disconnect all external peripheral devices from the server.