Lenovo THINKSERVER 3821 - Manual (Page 232)

1 Heat sink flange
2 Microprocessor
3 Release level locking tab
4 Retainer bracket
5 Alignment tab
6 Heat sink release level
7 Notch
Attention: The heat sink is keyed to the retention module. Make sure
that the notch on the heat sink fits over the alignment tab on the retention
module.
d. Align the notch on the heat sink with the alignment tab on the retainer
module.
e. Slide the rear flange of the heat sink into the opening in the retainer
bracket.
f. Press down firmly on the front of the heat sink until it is seated securely.
g. Rotate the heat-sink release lever to the closed position and hook it
underneath the locking tab.
7. If you are installing microprocessor 2, install a VRM in the connector next to
microprocessor socket 2 (see “System-board internal connectors” on page 131
for the VRM connector location).
Note: A VRM must be installed for microprocessor 2. The server will not start
if microprocessor 2 is installed without 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.
8. Install the air baffle (see “Installing the air baffle” on page 170).
224 ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Hardware Maintenance Manual