Removing A Hot-Swap Power Supply - IBM 7979B1U User Manual

1. Read the safety information that begins on page vii and "Installation guidelines"
2. Remove the power-supply blank from the empty power-supply bay by pinching
3. Slide the ac power supply into the bay until the retention latch clicks into place.
4. Remove the server cover and install the five cooling fans that came with the
5. Connect the power cord for the new ac power supply to the power-cord
6. Route the power cord through the power-supply handle and through any cable
7. Connect the power cord to a properly grounded electrical outlet.
8. Make sure that the dc power LED and ac power LED on the power supply are
If you have other optional devices to install or remove, do so now. Otherwise, go to
"Completing the installation" on page 81.

Removing a hot-swap power supply

Attention:
power supplies and connecting and disconnecting power refers to ac power
supplies only. If the server contains dc power supplies, see the documentation that
comes with the dc power supplies. In a dc power environment, only trained service
personnel other than IBM service technicians are authorized to connect or
disconnect power to the dc power supply and to install and remove a dc power
supply.
74
System x3650 Type 7979: User's Guide
on page 28.
the side clip and pulling the power-supply blank from the bay. Save the
power-supply blank in case you remove the power supply at a later time.
Important: During normal operation, each power-supply bay must contain either
a power supply or power-supply blank for proper cooling.
power-supply (see "Installing a fan" on page 75).
Important: When power supply 1 is installed, the five fans for power supply 1
occupy the rear row only (fans 3, 4, 8, 9, and 10); when both power supplies
are installed, all 10 fans must be installed. See the fan numbers on the
microprocessor air baffle, or see the illustration in "Removing a fan" on page 76.
connector on the power supply.
Attention: In a dc power environment, only trained service personnel other
than IBM service technicians are authorized to connect or disconnect power to
the dc power supply. See the documentation that comes with each dc power
supply for installation instructions.
The following illustration shows the ac power-supply connectors on the back of
the server.
Power cord
connectors
Power supply 1
Power supply 2
clamps on the rear of the server, to prevent the power cord from being
accidentally pulled out when you slide the server in and out of the rack.
lit, indicating that the power supply is operating correctly.
The information in this document regarding installing and removing