HP ProLiant BL20p G3 Server Blade - Manual (Page 32)

Hardware Options Installation
Figure 4-2: Removing the processor
Installing a Processor
IMPORTANT: The processor and heatsink are designed to fit one way into the socket. Align
the arrow on the processor with the arrow on the processor socket.
IMPORTANT: Be sure that the processor locking lever is open before installing the processor
into the socket.
HP ProLiant BL20p Generation 3 Server Blade User Guide 4-3