"Hi Mike, Thought I'd send a quick note to let you know that I had absolutely no trouble at all getting my Adaptec 29160N SCSI card working on my G5 (2 x 2.5 GHz) running Leopard (10.5.1).

After doing a clean install of the OS last night, I updated to 10.5.1 using Software Update, and then installed the ancient 29160x driver (version 1.2.0). (Not the later 1.3beta from 2004. Here's the 29160 mac driver downloads page. For links to other adaptec card Mac driver pages see this previous post.)
I use the card to drive an Imacon scanner, and after the installation, the scanner was recognized and appears to be fully functional. Unfortunately I don't have any other SCSI devices to test, so I can't really comment beyond that, but as far as I'm concerned everything is working as it should be (and Apple System Profiler seems to agree).
...Happy holidays, and all the best in the New Year!
Gabe"

For those that had errors (script errors typically) installing the 1.3beta drivers in 10.5.1, let me know if you try the v1.20 (from 2002) drivers.

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