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 Mac Pro Overclocking 
 
 
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Old 29-06-2008, 06:11 PM
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Mac Pro Overclocking
The German edition of ZDnet has released a Mac Pro Overclocking tool:

Exclusive: ZDNet overclocking tool enhances performance of Mac Pro - Mac-Hardware | ZDNet.de

I havnt got my Mac Pro yet, but those with Mac Pro's and game enough to try, please reply back and let me know how it goes.
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Old 29-06-2008, 06:21 PM
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Nice program, but do Mac Pros' need overclocking at all? If they can figure out how to overclock a mini though...
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Old 29-06-2008, 06:32 PM
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So tempted to try it, but i don't want to risk it yet. I've got way to much video to edit.
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Old 29-06-2008, 06:39 PM
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Shit yeah, overclock your CPU & stress it heaps therefore shortening its effective life... we can all afford a buy CPUs everyday, well you possibly can I can't.
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Old 29-06-2008, 06:39 PM
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With ECC ram i dont think you can do much damage. It will just shutdown, and restart at stock speeds.

400mhz gain over 8 cores seems good, but in the real world it equates to about 10-15% performance increase. Still alot cheaper than purchasing the 3.2ghz MacPro from Apple.

After a bit more reading, its seems there are a few more isues with the ZDnet beta:

AppleInsider | Third-party tool allows Mac Pro overclocking
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Old 29-06-2008, 06:43 PM
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Quote:
Originally Posted by ZDNet
ZDNet plays it safe when overclocking. ZDNet Clock does not use any voltage increase for the CPU, the front-side bus (FSB) or the memory modules. Voltage increase leads in increased electro-erosion and shortens the life of the modules in question.
They're not using a voltage increase here so electro-erosion doesn't seem to be a problem. Not sure what negative effects frequency overclocking has though.

If I had a Mac Pro i'm not sure i'd try it. Seems too risky for an otherwise expensive machine, and the performance bump is hardly necessary at this stage.
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Old 29-06-2008, 06:46 PM
I'll do it soon, okay?

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It's pretty harmless - particularly on the Mac Pro as it has excellent cooling. Your fans may run a little louder as the CPUs are generating more heat due.

Just go up in little increments until it crashes, then go down a notch and it should be fine. If you can't get back, just re-install OS X, as this method of overclocking uses kernel extensions to work, it's not physically changing anything.
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Old 29-06-2008, 06:51 PM
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The beauty of this is that you can switch it on and of or adjust the speed which would be handy if you had to encode some video or similar and then switch it back when you're finished...
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