Install the front PCIe switch cable harness

Follow instructions in this section to install the front PCIe switch cable harness. The procedure must be executed by a trained technician.

Procedure

1. If necessary, attach the label to the signal cable(s).
   1. Attach the white space portion of the label to the end of the cable that connects to the PCIe switch board.
   2. Wrap the label around the cable and attach it to the white space portion.
   Figure 1. Label application
   
   

   Note

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

   From	To	Label
   Front PCIe switch cable harness: MCIO 1 cable	PCIe switch board: MCIO connector 1 (MCIO1)	MCIO 1
   Front PCIe switch cable harness: MCIO 1 cable	PCIe switch board: MCIO connector 1 (MCIO1)	MCIO 1
   Front PCIe switch cable harness: MCIO 2 cable	PCIe switch board: MCIO connector 2 (MCIO2)	MCIO 2
   Front PCIe switch cable harness: MCIO 3 cable	PCIe switch board: MCIO connector 3 (MCIO3)	MCIO 3
   Front PCIe switch cable harness: MCIO 4 cable	PCIe switch board: MCIO connector 4 (MCIO4)	MCIO 4
   Front PCIe switch cable harness: MCIO 5 cable	PCIe switch board: MCIO connector 5 (MCIO5)	MCIO 5
   Front PCIe switch cable harness: MCIO 6 cable	PCIe switch board: MCIO connector 6 (MCIO6)	MCIO 6
   Front PCIe switch cable harness: MCIO 7 cable	PCIe switch board: MCIO connector 7 (MCIO7)	MCIO 7
   Front PCIe switch cable harness: MCIO 8 cable	PCIe switch board: MCIO connector 8 (MCIO8)	MCIO 8

2. If needed, install the cables to the front PCIe switch cable harness.

   • Front I/O module, integrated diagnostics panel, GPU management, or signal cable

     Align the cable with the hole on the front PCIe switch cable harness and insert it; then, fasten the four screws to secure the cable.

     Figure 2. Front I/O module, integrated diagnostics panel, GPU management, or signal cable installation
     
     

   • Power cable

     1. Align the cable with the hole on the front PCIe switch cable harness, and insert it.
     2. Insert the two washers and the two screws to the holes, and fasten them to secure the cable.
     Figure 3. Power cable installation
     
     
3. Install the front PCIe switch cable harness.
   1. Align the front PCIe switch cable harness with the four guide pins on the 8U GPU shuttle; then, lower the front PCIe switch cable harness into the 8U GPU shuttle until it is securely engaged.
   2. Locate the ten screw holes marked with C on both sides of the 8U GPU shuttle; then, fasten the ten screws to secure the front PCIe switch cable harness.
   Figure 4. Front PCIe switch cable harness installation
   
   
4. Connect the cables to the PCIe switch board and the PSU interposer. See below for more information.
   • PCIe switch board cable routing
   • Power interface board cable routing
5. Install the following front I/O module cables.
   • Fasten the two hex nuts (1) to install the VGA cable to the front I/O bracket.
   • Fasten the two screws (2) to install the USB cable to the front I/O bracket.

   Figure 5. Front I/O module cables installation
   
   
6. Install the front I/O module.
   1. Insert the front I/O module into the front I/O module slot.
   2. Fasten the inner screw to secure the front I/O module.
   3. Fasten the two outer screws to secure the front I/O module.
   Figure 6. Front I/O module installation