Fujitsu PRIMERGY RX2530 M6 Upgrade And Maintenance Manual page 307

Liquid cooling (LC)
Figure 215: Installing the LC heat sink onto the CPU frame
▶ Place the LC heat sink onto the CPU frame.
▶ Prepare the second CPU and LC heat sink in the same way.
▶ Hold the complete LC kit with both hands and position it onto the CPU
sockets.
RX2530 M6 Upgrade and Maintenance Manual 307