Dell R300 owner manual System Board Service-Only Procedure, Replacing the Power Distribution Board

Replacing the Power Distribution Board

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge.

1Unpack the new power distribution board assembly.

2Position and seat the power distribution board over the four standoffs on the chassis base, and then put the power distribution board shroud over the power distribution board and align the standoffs with the four locator holes on the four corners of the power distribution board shroud. See Figure 3-23.

3Locate, align, and install the four captive screws that seat in the holes on the four corners of the power distribution board shroud. These captive screws also align and seat the power distribution board and shroud in the bay of the chassis base and the system. See Figure 3-23.

4Connect the fan module cable connector to the power distribution board and then put the power distribution board shroud over the power distribution board, as shown in Figure 3-23.

5Connect all cables to the system board, front control board, and backplane. See "Installing the System Board Assembly" on page 121, "Installing the Control Panel Assembly" on page 115, and "Installing the Backplane Board" on page 102.

6Locate the hinged interior catches on either side of the shroud and align and seat the power distribution board cover, rotating it down and over the shroud. See Figure 3-23.

7Install the power supplies in the system. "Replacing a Power Supply" on page 89.

System Board (Service-Only Procedure)

The system board and system board tray are removed and replaced as a single assembly.

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Installing System Components