Cisco SE-CL-L3 Installation Manual page 49

Maintaining the Server
Step 3
The new CPU assembly is shipped on a CPU assembly tool. Take the new CPU assembly and CPU assembly tool out of
the carton.
If the CPU assembly and CPU assembly tool become separated, note the alignment features shown below for correct
orientation. The pin 1 triangle on the CPU carrier must be aligned with the angled corner on the CPU assembly tool.
Caution CPUs and their sockets are fragile and must be handled with extreme care to avoid damaging pins.
Figure 22: CPU Assembly Tool, CPU Assembly, and Heatsink Alignment Features
1 CPU assembly tool
2 CPU assembly (CPU in plastic carrier)
3 Heatsink
Step 4 Apply new TIM to the heatsink:
The heatsink must have new TIM on the heatsink-to-CPU surface to ensure proper cooling and performance.
Note
4 Angled corner on heatsink (pin 1 alignment
feature)
5 Triangle cut into carrier (pin 1 alignment
feature)
6 Angled corner on CPU assembly tool (pin 1
alignment feature)
Cisco Application Services Engine Hardware Installation Guide
Replacing a CPU and Heatsink
43