Sun Microsystems Sun Fire E25K Service Manual page 197

9. Reach through the upper and lower card guide assembly and remove the blue
colored connectors attaching the fan power cable to the four (4) fan backplanes.
10. Remove the fan power cable assembly from the system.
16.2.5.2 Installing the Fan Tray Power Cable
1. Install the new cable(s), carefully routing the cable(s) as originally installed.
2. Replace the blue colored connectors attaching the fan power cable to the four (4)
fan backplanes.
See
FIGURE 16-3
3. Secure the black plastic cable covers, on the front and rear of the system, to the
center bulkhead with the thirty-eight (38) (nineteen (19) per side) M4x6 panhead
screws.
4. Replace the two (2) upper cable clamps (each with two (2) locknuts on the front
and rear of the system).
5. Secure the vertical cable wireway covers, on the front and rear of the system, with
the sixteen (16) M4x6 panhead screws (eight (8) per cover).
6. Secure the four (4) female jack screws (two (2) per connector) holding the fan tray
cable connectors to the horizontal connector bracket by using a 3/16 inch nut
driver.
7. Secure the four (two (2) per connector) jackscrews holding the 48 VDC power
cable assemblies to the two (2) fan tray power cable connectors on the front and
rear of the system.
8. Install the honeycomb EMI Filter panel and air plenum cover and secure with the
twenty-two (22) M4x30 panhead screws.
9. Install the system board modules and their associated carrier plate assemblies into
the front and rear of the system.
10. Power on the system.
See Section 16.3, "Powering On the System" on page
and for reference designators.
FIGURE 16-5
16-20.
Chapter 16 Cable Replacement Procedures 16-15