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SonnetCache enables Sonnet processor upgrade cards' L2 and L3 caches under Mac OS X (if they are not already enabled by the Mac ROM). It also will correctly report the size of the caches and the processor speed to the Mac OS X kernel.

What's New

Version 1.4:
  • Enables the correct reporting of cache size in Mac OS X Version 10.4.


Mac OS X 10.0 or later, Sonnet processor upgrade card.

*Previously available here

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Anonymous Member IconReview

This 1.4b1 version of SonnetCache works fine with OS X Tiger 10.4.3.

Actually, I didn't really need SonnetCache with Tiger, since the L2 cache for my 1.7 GHz 7447A upgrade in my Power Mac Cube works fine without SonnetCache installed. However, without SonnetCache the CPU speed wouldn't be reported properly in the "About This Mac" dialogue box.

Installing SonnetCache 1.4b1 in OS X 10.4.3 means the CPU speed now is reported properly.

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Version 1.4b1
Anonymous Member IconReview

postflight script not readable error

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Version 1.3
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> 3 2


Current Version (1.x)


Downloads 3,479
Version Downloads 1,996
Type Drivers / Other
License Free
Date 07 Apr 2006
Platform OS X / PPC 32
Price Free