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Liquid Metal Thermal Interface Material for 3GHz Mac Pro
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Fresh-Faced Recruit
Join Date: Apr 2007
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(Last edited by CNTIM; Apr 16, 2007 at 05:35 PM.
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Mac Elite
Join Date: Jun 2006
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Looks like what they've been using for years thermal paste.
Most people who work on their computers swear by Arctic silver supposedly its superior to the run of the mill thermal paste.
since you popped off the heat sinks you really have to apply a new coating of the thermal paste or you risk cooking your CPUs
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Michael
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Moderator  Join Date: Sep 2001
Location: Arizona
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Originally Posted by mac128k-1984 
since you popped off the heat sinks you really have to apply a new coating of the thermal paste or you risk cooking your CPUs
...Why? It's paste.
You only have to worry about that with thermal pads.
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I like chicken
I like liver
Meow Mix, Meow Mix
Please de-liv-er
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Senior User
Join Date: Jun 2002
Location: Albuquerque, NM
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I've always put on fresh paste. The old paste always seems a little dried out compared to a fresh dab.
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Moderator Join Date: Sep 2001
Location: Arizona
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I'd certainly hope that the paste Apple is using with the Mac Pros wouldn't be drying out already. The machines haven't even been out in the wild a year yet.
As for thermal paste drying up; I've only experienced that with very generic thermal pastes. Anything higher end, especially Arctic Silver Ceramique, shouldn't.
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I like chicken
I like liver
Meow Mix, Meow Mix
Please de-liv-er
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Mac Enthusiast
Join Date: Jul 2006
Location: MA
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Originally Posted by Lateralus
...Why? It's paste.
You only have to worry about that with thermal pads.
We have had more than a few computers come into the shop I work at that were over heating from a lack of thermal paste. Users removed the heatsinks and no longer had a good, full coating of thermal paste. It may not be necessary to put a freash coat on his heatsinks since the computer is very new, but it's just a good preventative measure.
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Senior User
Join Date: Aug 2006
Location: Toronto, Ontario
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how does one even access the CPU
im not sure how to open up that bay (area) plastic sorounding the heatsink :s
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R.I.P Steve Jobs
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Fresh-Faced Recruit
Join Date: Apr 2007
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Originally Posted by mac128k-1984
Looks like what they've been using for years thermal paste.
Most people who work on their computers swear by Arctic silver supposedly its superior to the run of the mill thermal paste.
since you popped off the heat sinks you really have to apply a new coating of the thermal paste or you risk cooking your CPUs
The TIM doesn't seem to be Artic Silver. It resembles a TIM is saw in the past:
PCApex.com - Coollaboratory Liquid Metal
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Mac Elite
Join Date: Jun 2006
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Sorry the second and third pictures resembled thermal paste.
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Michael
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Fresh-Faced Recruit
Join Date: May 2007
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That’s not thermal paste. The stuff looks like a Low Melt Alloy. If it's liquid at room temperature then it's most likely Gallium-Indium. If it gets exposed to air or moisture it starts oxidizing and turns to powder. There was a huge recall from Dell and IBM a few years ago when they tried to use that stuff without doing an adequate job of sealing the interface. Can anyone confirm that the processor lid has a well milled into it and if the heatsink has a containment structure built into it?
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