HT3773: OS X: Starting up with the 32-bit or 64-bit kernel
Learn about OS X: Starting up with the 32-bit or 64-bit kernel
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Helpful answers
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Aug 15, 2012 6:07 PM in response to Johandekosterby BobHarris,https://support.apple.com/kb/HT3773
I'm assuming this Sony component is a kernel extension, as most other things can run as 32 or 64 bits independent of how the kernel is booted.
If the above HT3773 article does not help, then maybe details about this Sony install would allow someone that has experience with it to suggest things.
Also what kind of Mac do you have? There may be firmware issues with booting 32 bit kernel. How much RAM, as if you have a ton of RAM (like 64GB more more) you may need to boot 64-bit kernel in order to use that much RAM.
There could be lots of reasons, but we will need to have more information about the Sony product and your Mac make/model/configuration