4.  If the server is installed in a rack, reinstall the server into the rack.
5.  Power on the server and any peripheral devices.
Install the processor and memory expansion tray 
Use this procedure to install the processor and memory expansion tray.
Before installing the processor and memory expansion tray:
1.  Read the safety information and installation guidelines (see 
“Safety” on page iii and “Installation 
Guidelines” on page 56
).
2.  Touch the static-protective package that contains the component to any unpainted metal surface on the 
server; then, remove it from the package and place it on a static-protective surface.
To install processor and memory expansion tray, complete the following steps:
Watch the procedure 
A video of this procedure is available at YouTube: 
https://www.youtube.com/watch?v=pIb0bIyfkDY&= 
PLYV5R7hVcs-Ak9fT8QAx8fLbEivizjRtp
.
Step 1.  If a power interposer and a system board air baffle are installed, remove them (see 
“Remove the 
system board air baffle and the power interposer” on page 94
).
Step 2.  Install an processor and memory expansion tray air baffle on the system board. Make sure it is 
properly installed before installing the processor and memory expansion tray. 
Figure 72. Processor and memory expansion tray air baffle installation
Attention: Air baffle is required for airflow that creates proper cooling. Make sure proper air baffle 
(s) for system configuration is installed before the power is turned on.
Step 3.  Slightly slide power supply 2 out from the power supply bay (see “Remove a hot-swap power 
supply unit” in ThinkSystem SR860 Maintenance Manual).
112
ThinkSystem SR860 Setup Guide