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Old Feb 26th, 2015, 09:45 PM   #1
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Post Xeon W3520 2.66 GHz CPU

I will be upgrading the 2.66 GHz CPU in my Mac Pro with a faster chip in the next few days. If anyone is interested in the Xeon W3520 2.66 GHz CPU that is currently in the machine, let me know and we can work out a fair price.
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Old Feb 26th, 2015, 11:16 PM   #2
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Just curious, where are you getting the swap job done? I have the same Mac Pro and have considered doing the same.
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Old Feb 27th, 2015, 07:11 AM   #3
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Just curious, where are you getting the swap job done? I have the same Mac Pro and have considered doing the same.
I'll be doing it myself. Very easy on this model if you are practiced at working with computer parts.
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Old Feb 27th, 2015, 05:12 PM   #4
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Same CPU I have. Are you upgrading to a dual CPU board or simply upgrading to a faster processor. Are our CPUs lidless?
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Old Feb 28th, 2015, 08:43 AM   #5
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Same CPU I have. Are you upgrading to a dual CPU board or simply upgrading to a faster processor. Are our CPUs lidless?
I changed the original, single Xeon W3520 for a 3.33 GHz W3580. Both CPUs use a heat spreader lid. The website xlr8yourmac.com is a good place to read reports and how-to's with links from there to YouTube videos and other guides.
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Old Feb 28th, 2015, 10:34 PM   #6
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I changed the original, single Xeon W3520 for a 3.33 GHz W3580. Both CPUs use a heat spreader lid. The website xlr8yourmac.com is a good place to read reports and how-to's with links from there to YouTube videos and other guides.
I was reading through those and watched a couple of videos. The torquing of the heat sinks makes me a bit squeamish. Too little and no boot, too much and damage can occur. Yikes.
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Old Mar 1st, 2015, 02:19 AM   #7
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Torque? What?

The heatsink is held by 4 screws which are supposed to be spring loaded, and half threaded screwed, so you can't just screw them down too much.
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Old Mar 1st, 2015, 03:16 AM   #8
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Torque? What?

The heatsink is held by 4 screws which are supposed to be spring loaded, and half threaded screwed, so you can't just screw them down too much.
That's not what the videos I watched indicated...

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Old Mar 1st, 2015, 09:04 AM   #9
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I was reading through those and watched a couple of videos. The torquing of the heat sinks makes me a bit squeamish. Too little and no boot, too much and damage can occur. Yikes.
I appreciated the thoroughness of the one video, although the dramatic narration "I hope it starts" could have been cut out.

In my 2009, single-CPU Mac Pro, I found the process very easy. The screws firmly stop turning when seated; there was no question whether they needed more turning or were finished.

An important practice is to turn each screw by 1 or 2 rotations at a time, then move diagonally to the opposite screw, then to an adjacent screw, then diagonally again to the 4th screw. This criss-cross pattern ensures that the screw tightening is balanced and is important to follow in any situation where multiple screws hold something in place. If 1 screw was fully tightened with the others loose, the heatsink would be pulled crooked.

Nevertheless, if watching a video the process makes you nervous, you probably won't enjoy doing it yourself.
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Old Mar 1st, 2015, 10:07 AM   #10
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Nevertheless, if watching a video the process makes you nervous, you probably won't enjoy doing it yourself.
I saw another video that made it look quite easy. Except he was criticized in the comment section for not being thorough/careful enough in his methods. Go figure.
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