Removing The Power Subsystem Bay - Silicon Graphics 1450 Maintenance Manual

2: Removing and Installing System Components

Removing the Power Subsystem Bay

36
1. Remove the front bezel by gently pulling on the edge of the front bezel. The ball
studs of the bezel will release.
2. Remove the non-functioning power supply according to the instructions in the
preceding subsection.
3. Line up the new power supply module within the power subsystem bay.
4. Gently push the power supply module into the chassis until the tab snaps into
place. The LED for the new functional power supply module should turn green.
5. Tighten the thumbscrew on the front of the power supply module.
6. Snap on the bezel.
To remove the power subsystem bay, follow these steps:
Warning:
The on/off button on the front panel DOES NOT turn off the system AC
power. To remove power from system, unplug the AC power cords from the wall outlet
or the system.
Warning:
Hazardous voltage, current, and energy levels are present inside the
power supply. There are no user-serviceable parts inside it; servicing should be done
by technically qualified personnel.
1. Observe the safety and ESD precautions at the beginning of this chapter.
2. Remove any DC power cables attached to the hard drive bay or the peripheral bay
devices.
3. Remove the baseboard. See "Removing the Baseboard" on page 28.
4. Loosen the screw on the front of the chassis. This screw is noted by "F" in Figure 2-5
on page 34.
5. Release the two screws on each side of the chassis. One of the screws is noted by
"A" in Figure 2-5 on page 34.
6. Lift the piece of sheet metal covering the top of the power subsystem bay. The metal
plate is noted by "A" in Figure 2-6 on page 38.
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