Kontron TIGH2U Carrier Grade Server - Manual (Page 97)

Kontron Carrier Grade Server TIGH2U
December 2009 Product Guide, rev.1.2
97
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Server Component Replacements—TIGH2U Server
5.6 Replacing the Power Distribution Assembly
The power distribution board (PDB) routes power from the power supply to the rest of the server
system through an integral wiring harness. The PDB is covered by a metal cage for safety, ventilation,
and heat dissipation. It is this whole assembly that must be removed and replaced, not just the
board.
Caution: Before replacing any of the boards or components in the TIGH2U Server, you must first
take the server out of service, turn off all peripheral devices connected to the system,
turn off the system by pressing the power button, and unplug the power cord(s) from
the system or wall outlet.
When handling this board, observe normal safety and ESD precautions. (See Appendix A, “Safety
Information” for more information.)
To safely remove the PDB, you must first remove the chassis top cover, the front panel bezel, and the
drive bay assembly, which sits in front of the PDB module in the chassis.
5.6.1 Removing the Power Distribution Board
1. Remove the chassis cover. For instructions, see Section 3.2.3, “Removing the Chassis Cover” on
page 26 .
2. Remove the front bezel. For instructions, see Section 3.2.1, “Removing the Front Bezel” on
page 25 .
3. Remove the processor air duct. For instructions, see Section 3.2.5, “Removing the Processor Air
Duct” on page 28 .
4. Remove the drive bay assembly. For instructions, see Section 5.5.1, “Removing the Drive Bay
Assembly” on page 93 .
5. Remove the power supply module(s). For instructions, see Section 3.3.2, “Replacing a Power
Supply” on page 32 .
6. Remove the PCI fan assembly. For instructions, see Section 5.2.4, “Removing the PCI Fan
Assembly” on page 78 .
7. Remove the PCI riser card assembly. For instructions, see Section 4.2.2, “Removing the PCI Riser
Card Assembly” on page 56 .
8. Remove the CPU fan assembly. For instructions, see Section 5.2.1, “Removing the CPU Fan
Assembly” on page 75 .