The ProG3 is a processor upgrade offered by Formac. The upgrade came
in two versions a ZIF upgrade and a carrier board for PCI-based Macs.
In both cases the ZIF or carrier card replaces the original CPU ZIF or
card.

These downloads contain a control panel and the manual. The manual is
also available as separate download.

System requirements: Mac OS 7.6 or higher
ZIF Upgrade hardware requirements: A Beige "G3 Classic" or "G3 B&W"
system
Carrier Board Upgrade hardware requirements: Power Macintosh 7300
through 9600

The manual contains important information, such as dip switch settings
for the CPU. These also differ from the "G3 Classic" (beige models)
and the "G3 B&W" (later blue and white towers).

The control panel lets you view the speed of the CPU and L2 cache and
make adjustments.

A note (originally in German) states that the CPU upgrade should work
in Mac OS X without any software:

> Formac ProG3 CPU Upgrades and OSX
>  \--------------------------------------------------
> -------------------
>  The ProG3 control panel is a display utility. For OSX will
>  this is not offered and is also not required.
>  The OSX functionality of the ProG3 processor upgrades is
>  given and has not presented any problems so far.
>  \--------------------------------------------------

Download #1: Version 2.2.3 of the control panel and manual, .sit
format, via DropStuff 5.1.2.
Download #2: Version 2.2.3 of the control panel and manual, .dmg
format.
Download #3: Version 2.2.3 of the control panel and manual, .sitx
format, this extractes the same file as download #2. This is the
original file from the Wayback Machine.
Download #4: Version 1.0.0 of the control panel, .sit/bin format.

Note: This download was found on the German Formac website via the
Internet Archive's Wayback Machine ([link][1]). It was originally in
sitx format, I've converted it to .sit but provided the original
here.

Compatibility
Architecture: PPC

  [1]: https://web.archive.org/web/20070214091850/http://www.formac.de:80/Service/Downloads/old/prog3.sit