This is used item just taken out of a working Mac Pro 5,1 unit. This is a real 5,1 processors, total of 12core, NOT a 4,1 upgraded. This should be use in a real 5,1 and NOT a 4,1 upgraded Mac Pro. The thermal compound and thermal strip has been replaced with new one. Will power it up again prior to shipping to confirm it is working, so rest assure that it is working unit. Local buyer can test first. RAM are old rams, 6 x 2GB will be given free. They are probably 1066 ones from another source, this unit can take 1333 ones. You can also upgrade the CPUs with X5680 or X5690. Pickup at Sengkang. MacPro, Mac Pro, A1289, Apple, XEON,
Weekdays and weekends, everyday also at home.