Upgrade from one to two CPU

[sealview]

Hello,

I need to upgrade my server (Proliant DL380p G8) from one CPU sokect used to two.
I have no idea how to find out which CPU is installed on my server in order to know what CPU to choose for second one.
There seams to be two types of CPU:  715222-L21 and 715222-B21 (Intel® Xeon® Processor E5-2609 0 @ 2.40GHz)
So, how do I find out which should I have to choose for the second CPU.

Thank you.

[Jimmy Vance · Accepted solution]

The L21 number is used for the 1st CPU when configuring a BTO or CTO system, the B21 is the option number for adding the 2nd CPU. In your case you want to order the B21 part