Sun Microsystems Netra T4 AC100, Руководство по обслуживанию и системе

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9-6 Netra T4 AC100/DC100 Service and System Reference Manual • August 2001
9.2.1 Preparation
Before proceeding to remove a CPU module, carry out the following:
1. Initiate antistatic precautions.
See Section 5.5, “Antistatic Precautions” on page 5-5.
2. If the system is running, shut it down and remove the power.
See Section 5.3.2, “Powering Off the System” on page 5-4.
3. Remove the top access cover.
See Section 5.6.2, “Removing the Top Access Cover” on page 5-9.
9.2.2 Removing a CPU Module
1. Perform the steps listed in Section 9.2.1, “Preparation” on page 9-6.
2. Remove the purple plastic CPU shroud cover by holding the tabs to release them
and lifting the shroud from the chassis.
3. Identify the CPU module to be removed.
4. Remove the torque tool from its location inside the chassis.
See
FIGURE 9-2
.
5. Use the tool to loosen each knurled torque screw counter-clockwise through 360˚.
6. Turn both screws by hand at the same time until the CPU module is released from
the slot.
7. Without touching the heat sink and the connectors on the base of the CPU
module, lift the module out of the CPU shroud and place it on the antistatic mat.
You can use the plastic faceplate as a handle.
8. If you are not immediately fitting a new CPU module, continue below, otherwise
continue with Section 9.2.3, “Installing a CPU Module” on page 9-7:
a. Refit the CPU shroud cover by sliding it back into place until the locking tags
engage.
Note that slot CPU0 must always contain a CPU module.
b. Fit a blanking panel in the open slot.