Fujitsu PRIMERGY RX4770 M5 Upgrade And Maintenance Manual page 391

Figure 228: Connecting the control cables and routing under the tubes (bottom system board)
▶ Run the control cables under the tubes (see arrows).
▶ Connect the two control cables of the pumps for CPU 1 and CPU 2 to the
connectors (1, 2) on the bottom system board (see circles).
▶ Run the tubes as shown.
▶ If applicable, install the memory spacers, see
on page 398.
RX4770 M5 Upgrade and Maintenance Manual
Liquid cooling (LC)
"Installing a memory spacer"
391