IBM 866011U - Netfinity 5500 - 8660, Hardware Maintenance Manual

Page: 383 / 402

For the core/bus ratio 5.0 (500/100 MHz),
jumpers are installed on pins 1 and 2 of J30 and
J31 and on pins 2 and 3 of J28 and J29.
7. Install the voltage regulator modules (VRMs)
.12/
included in the microprocessor kit:
a. Determine the connectors where the VRMs are
to be installed. See Table 15 on page 372.
The microprocessor upgrade kit comes with two
VRMs. You might need to install only one,
depending on the number of microprocessors in
the server.
b. Center the VRM
.12/
over the connector
.11/
.
Make sure that the VRM is oriented and aligned
correctly; then, press the VRM into the
connector.
c. Repeat the preceding step for the second VRM,
if needed.
Note
If you need to install only one VRM, store
the remaining VRM in a safe place to use as
a replacement.
8. Go to “Installing memory-modules” on page 376.
4-way Xeon upgrade installation
375