![](/images/new-backgrounds/1187084/18708447x1.webp)
2.2Installing motherboard components
9.Screw the heatsink to the heatsink retainer as shown.
Heatsink retainer screws
10.Plug the cooling fan lead into a CPU fan pin header as shown.
CPU cooling fan pin header
11. Repeat steps three to seven with the other CPUs.
Note: CPU and heatsink installation is the same for CPUs on the motherboard or on the CPU expansion board.
2.2.3Installing memory
Follow the instructions in this section to install memory mod- ules in your B4881V50S4H system.
1.Remove the chassis cover. See Removing the chassis cover on page 13.
16 | Chapter 2: Setting up |