PAIR (2) INTEL XEON X5670 2.93GHZ 6-CORE PROCESSORS, DELIDED (REMOVED COVERS) FOR MAC PRO 4,1 DUAL PROCESSOR INSTALLATION. PROCESSOR SURFACE IS VERY SMOOTH AND WORKS WITH THERMAL PASTE APPLIED THE SAME WAY AS REMOVED COVER. COVERS ARE NOT INCLUDED TO REDUCE SHIPPING WEIGHT.

PROCESSORS PERFORM IDENTICALLY TO XEON X5675 3.06GHZ (TESTED WITH MAX AUDIO TRACK COUNT IN APPLE LOGIC PRO APPLICATION).

XEON X5670 2.93GHZ PROCESSOR SPEED IS OFFICIALLY SPECIFIED BY APPLE FOR HEAT DISSIPATION WITH MAC PRO HEATSINKS. AS INDICATED IN MAC PRO SERVICE MANUAL, PLEASE APPLY HIGH GRADE (HIGH SILVER CONTENT / METAL OXIDE) THERMAL PASTE DURING INSTALLATION FOR BETTER HEAT DISSIPATION. INSTALLATION REQUIRES A LONG LENGTH HEX SCREW DRIVER, TO REMOVE HEATSINKS, AND IS FAIRLY EASY TO PERFORM WITH DE-LIDED PROCESSORS. THE SCREWS HOLDING HEATSINKS MAY NEED TO BE HAMMERED LIGHTLY TO LOOSEN UP. FACTORY INSTALLED INTERNAL PROCESSOR BRACKETS SHOULD BE REUSED. UPDATING MAC PRO FIRMWARE FROM 4,1 TO 5,1 IS A SIMPLE SOFTWARE PROCEDURE AND SHOULD BE PERFORMED PRIOR TO PROCESSOR UPGRADE, AS SHOWN IN THE ATTACHED PHOTOGRAPHS FOR -