IBM 390, 387, 393 What to do next, Installing the power distribution board and cage assembly

10.Install the new power distribution board and cage assembly into the chassis so that the four screw holes

1in the rear of the new power distribution board and cage assembly are aligned with the corresponding holes marked with R in the rear of the chassis. Meanwhile, make sure that the two screw holes 2 in the metal clip at the front of the new power distribution board and cage assembly are aligned with the corresponding holes in the chassis. Then, install the four screws 1 and the two screws 2 to secure the new power distribution board and cage assembly in place.

Note: Use only screws provided by Lenovo.

Figure 83. Installing the power distribution board and cage assembly

11.Refer to your note and connect the power cables of the new power distribution board and cage assembly to the system board, all drives, and or hot-swap hard disk drive backplane(s), depending on the model. Then, properly route the cables and secure the cables with the cable clips and ties in the chassis.

12.Reinstall the front system fan(s). See “Replacing the front system fan” on page 149.

13.Reinstall the hot-swap redundant power supply module(s) and or the protective shield for the redundant power supply module bay 2. See “Replacing a hot-swap redundant power supply module” on page 140.

14.If you are instructed to return the old power distribution board and cage assembly, follow all packaging instructions and use any packaging materials that are supplied to you for shipping.

What to do next:

•To work with another piece of hardware, go to the appropriate section.

•To complete the replacement, go to “Completing the parts replacement” on page 162.

146ThinkServer User Guide