To install a SAS backplane, complete the following steps:
1. Position the replacement backplane on the back of the SAS cage; then, rotate
the top of the backplane toward the SAS cage until it clicks into place under the
retention tab.
2. Connect the power cable to the replacement backplane.
3. Connect the SAS signal cable to the backplane.
4. Replace the left-side cover.
5. Replace the hard disk drives.
6. Reconnect the external cables and power cords.
7. If you are replacing both SAS backplanes, repeat steps 1 through 4 to install the
second replacement backplane.
System board and microprocessor
The following sections describe how to replace the system board and a
microprocessor.
The following notes describe information that you must consider when you install a
microprocessor:
v The voltage regulators for microprocessor 1 is integrated on the system board;
the VRM for microprocessor 2 comes with the microprocessor option and must
be installed on the system board.
v You can use the Configurations/Setup utility program to determine the specific
type of microprocessor in the server.
Removing and installing the system board
To remove the system board tray, complete the following steps.
Release lever
Handle
Handle
1. Read the safety information that begins on page vii and “Handling
static-sensitive devices” on page 57.
90 IBM System x3500 Type 7977: Problem Determination and Service Guide
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