Thermal Grease - Lenovo ThinkServer TD200x Hardware Maintenance Manual

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 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).
9. Return the power-supply cage to its closed position (see Closing the power-supply cage).
10. Install the power supplies (see Installing a hot-swap power supply).
11. Install and lock the left-side cover (see Installing the left-side cover).
12. Reconnect the external cables and power cords; then, turn on the attached devices and turn on the
server.

Thermal grease

The thermal grease must be replaced whenever the heat sink has been removed from the top of the
microprocessor and is going to be reused or when debris is found in the grease.
To replace damaged or contaminated thermal grease on the microprocessor and heat sink, complete the
following steps:
1. Place the heat sink on a clean work surface.
2. Remove the cleaning pad from its package and unfold it completely.
3. Use the cleaning pad to wipe the thermal grease from the bottom of the heat sink.
Note: Make sure that all of the thermal grease is removed.
4. Use a clean area of the cleaning pad to wipe the thermal grease from the microprocessor; then, dispose
of the cleaning pad after all of the thermal grease is removed.
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ThinkServer TD200x Hardware Maintenance Manual