Fujitsu PRIMERGY RX2530 M4 Upgrade And Maintenance Manual page 308

Liquid cooling (LC)
Parts of the LC device
Figure 212: LC device
1 Memory cooling units
2 Control cable for each pump
3 Pump for CPU 2
4 Pump for CPU 1
5 Protective covers for the heat sinks
6 Flexible tubes
7 Quick connector block with slot cover
8 Quick connector with blue marking: water inlet
9 Protective cap (orange) for the quick connector
10 Quick connector with red marking: water outlet
308 Upgrade and Maintenance Manual
RX2530 M4