Hello. Based on the T620 documentation, I see that the Intel Xeon E5 -2670 processors are supported on this server. When buying from different re-sellers, be sure that the CPUs are identical in every description. It is advisable that you buy the CPU service kit which includes the thermal paste as well. Ensure that the system BIOS is up to date prior to processor upgrade.
Hi, I have a T620 with the 0658N7 motherboard, running two E5-2620 CPU's. I would like to upgrade to these here: [URL] Any reason why they should not work?  Thanks in advance, G  
Is this CPU compatible with my T620?