Installing Redundant Power And Cooling - IBM 7977E7U User Manual

10. If necessary, remove the cover from the bottom of the heat sink.
11. Place the tab on the heat sink into the connector in the retention bracket; then,
12. If necessary, install a VRM in the connector.
13. Reinstall the microprocessor air duct.
14. Reinstall the left-side cover.
15. Reconnect external cables and power cords.
If you have other optional devices to install or remove, do so now. Otherwise, go to
"Completing the installation" on page 49.

Installing redundant power and cooling

You can install a second 835-watt hot-swap power-supply. This upgrade option
includes a hot-swap power supply, two hot-swap fans, a fan structure with an air
duct and a single hot-swap fan. You must also purchase a second power cord to
connect the power-supply to the power source.
To install the redundant power and cooling option, complete the following steps:
7. Close the microprocessor bracket frame; then, close the microprocessor
retention latch and lock it securely in place.
8. Close the microprocessor-release lever to secure the microprocessor.
9. Make sure that the heat-sink release lever is open.
rotate the heat sink into place and close the heat-sink release lever.
Note: If you are installing an additional microprocessor in microprocessor
socket 2, you must also install a VRM.
a. Open the retaining clips on each end of the VRM connector.
b. Turn the VRM so that the keys align with the connector.
c. Insert the VRM into the connector by aligning the edges of the VRM with
the slots at the end of the VRM connector. Firmly press the VRM straight
down into the connector by applying pressure on both ends of the VRM
simultaneously. The retaining clips snap into the locked position when the
VRM is seated in the connector.
1. Read the safety information that begins on page v and "Installation guidelines"
on page 21.
2. Turn off the server and peripheral devices, and disconnect the power cords
and all external cables. Remove the left-side cover.
3. Remove all adapters.
Chapter 2. Installing optional devices
45