Install the retimer board

Follow instructions in this section to install the retimer board. The procedure must be executed by a trained technician.

Procedure

1. Install the retimer board.
   1. Hold the retimer board in the correct orientation as illustrated; then, align the retimer board with the standoffs on the shuttle, and gently place it onto the shuttle.
   2. Fasten the six screws to secure the retimer board.
      Note

      Tighten the screws with a torque screwdriver set to the proper torque. For reference, the torque required for the screws to be fully tighten is 0.9 ± 0.2 newton-meters.

      Figure 1. Retimer board installation
      
      
2. If necessary, attach the labels to both ends of the cables.
   1. Attach the white space portion of the label to one end of the cable.
   2. Wrap the label around the cable and attach it to the white space portion.
   3. Repeat to attach the other label to the opposite end of the cable.
   Figure 2. Label application
   
   

   Note

   See the tables below to identify the corresponding labels for the cables.

   Table 1. Power and sideband cables

   From	To	Label
   Retimer board: Power connector	Power distribution board: Retimer board power connector	PDB PWR RISER PWR 1A
   Retimer board: Sideband connector 1	Power distribution board: Retimer board sideband connector 1	SB 1
   Retimer board: Sideband connector 2	Power distribution board: Retimer board sideband connector 2	SB 2

   Table 2. Signal cables

   From	Label	To	Label
   Retimer board: MCIO connector A	MCIO A	System board: MCIO connector 9A	P2 - 9A MCIO A
   		System board: MCIO connector 9B	P3 - 9B MCIO A
   Retimer board: MCIO connector B	MCIO B	System board: MCIO connector 1A	P2 - 1A MCIO B
   		System board: MCIO connector 1B	P3 - 1B MCIO B
   Retimer board: MCIO connector C	MCIO C	System board: MCIO connector 2A	P2 - 2A MCIO C
   		System board: MCIO connector 2B	P3 - 2B MCIO C
   Retimer board: MCIO connector D	MCIO D	System board: MCIO connector 4A	P2 - 4A MCIO D
   		System board: MCIO connector 4B	P3 - 4B MCIO D
   Retimer board: MCIO connector E	MCIO E	System board: MCIO connector 8A	P2 - 8A MCIO E
   		System board: MCIO connector 8B	P3 - 8B MCIO E
   Retimer board: MCIO connector F	MCIO F	System board: MCIO connector 10A	P2 - 10A MCIO F
   		System board: MCIO connector 10B	P3 - 10B MCIO F
   Retimer board: MCIO connector G	MCIO G	System board: MCIO connector 5A	P2 - 5A MCIO G
   		System board: MCIO connector 5B	P3 - 5B MCIO G
   Retimer board: MCIO connector H	MCIO H	System board: MCIO connector 7A	P2 - 7A MCIO H
   		System board: MCIO connector 7B	P3 - 7B MCIO H

   Table 3. GPU management cables

   From	To	Label
   Retimer board: EP management connector 1	System board: EP management connector 1	EP MGMT 1
   Retimer board: EP management connector 2	System board: EP management connector 2	EP MGMT 2