Dell R300 owner manual Removing the Power Distribution Board

Power Distribution Board

The power distribution board is located on your system directly behind the power supply fan modules. This feature provides additional cooling to the power supplies through the power distribution shroud that routes airflow to the power supplies. See Figure 3-23.

Removing 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.

1Remove the power supplies from the system. See "Removing a Power Supply" on page 88.

2Disconnect all cable connectors from the system board, the front control board and the backplane. See "Removing the System Board Assembly" on page 119, "Removing the Control Panel Assembly" on page 113, and "Removing the Backplane Board" on page 100.

3Locate the power distribution shroud cover and unlatch and rotate it up until it is stopped by a detent. See Figure 3-23.

4Remove the shroud over the power distribution board by locating and removing 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 on the system. See Figure 3-23.

5Lift off of the power distribution board shroud, and then lift the board off of the four standoffs in the system bay. See Figure 3-23.

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Installing System Components