Kontron NSN2U IP Network Server - Manual (Page 64)

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If you do not have enough room to access this screw, you will have to remove (or at
least slide back) the FP board. For instructions, see “Removing the Old Front Panel
Board” in Section 5.4.
5. The LED/switch board is also attached to the front of the chassis by two standoffs.
Once the retaining screw is removed, you need to pry the LED/switch board loose
from these standoffs to remove it.
Replacing the LED/Switch Light Pipe Assembly
1. Remove the black control panel module from the front of the chassis by lifting up
from the bottom and then pulling down to release the top tabs holding it into the
chassis frame.
2. Position the new control panel module with the top tabs in the appropriate slots.
Gently push down and in to secure the bottom of the panel to attach it to the
LED/switch board.
Installing the New LED/Switch Board
1. Align the LED/switch board with the two standoffs on the front panel of the chassis
and gently push the board to secure it to the chassis frame.
2. Fasten the screw at the top right of the LED/switch board to hold it in place.
3. Replace the front panel board if you removed it or slid it out to work on the
LED/switch board installation. For instructions, see “Installing the New Front
Panel Board” in Section 5.4.
4. Replace the front bezel. For instructions, see “Re-Installing the Front Bezel” in
Section 3.2.
5. If this is the last task you are performing inside the server chassis, replace the
front chassis cover, reconnect the power cord(s), and reconnect any external
devices.
5.6 Replacing the Power Distribution Board
The power distribution board (PDB) routes power from the power supply module(s) to the
rest of the server through an integral wiring harness. For safety, ventilation, and
heat dissipation, the PDB has a black plastic cover around it, which also provides
guides for some of the cables.
To replace the PDB, you must first remove the following components:
•
Both top covers
• Riser card assembly and plastic guide
• Processor air duct
• SAS/SATA control module or hardware RAID module if either is installed
• All cables connected to the PCB or components that have to be removed to access it:
-- SAS/SATA drive power cable
-- SATA optical drive cable
-- SAS/SATA control module or SAS/SATA hardware RAID module flex circuit cable
CAUTION: Before replacing any of the boards on the NSN2U server, you must first take
the server out of service, turn off all peripheral devices connected to the
server, turn off the server by pressing the power button, and unplug the power
cord(s) from the system and wall outlet.
When handling the power distribution board, observe the normal safety and ESD
precautions. See Appendix A: Safety Information for more information.