Im currently rebuilding a Poweredge 2600 as a fun project, I know its old and outdated but thats alright.

Service tag is if thats helpful to anyone.

What ive done; removed backplane and SCSI drives: modified power to backplane and wired in molex to sata: added a new DVD drive to modernize and test that power mod is working (works perfectly): purchased 12gb of PC2100 ram: purchased a PCIX 8 port sata controller: Installing single 250gb SSD for now.

Now if anyone notices any of that, that wont work please tell me, but heres my main question..

I purchased two 3.2ghz intel xeon processors, I saw on another thread that the part number for the correct one would be RK80546KG0881M (which is what i thought I bought). What actually came in the mail was two 3.2ghz intel xeon processors with part number NE80546KG0881M. Out of fear of burning something up I only installed one at a time to test they were working (they do, bios recognizes them), when the bios sees them they only come up as 1.6ghz?? What would cause this? 

Bios is A09

No OS currently, waiting on RAM to come so I can install CENTos 7.