This article was first written in January 2005 for the BeezNest technical website (http://glasnost.beeznest.org/articles/199).
On 2.4 kernels on Debian, there is a driver that enables better powersavings for AMD760MP and AMD-760MPX (usually found on multi-processors mainboards such as Tyan S2460, S2462 and S2469) chipsets: amd76x_pm. It also exists as patch for the 2.6 kernel, but as it is non-standard, it is not included in Debian kernels packages.
To use it, simply add the following line to the end of your /etc/modules
To load it without rebooting, simply type the following command as root:
# modprobe amd76x_pm
Warning: Doing this on a Tyan S2469 running Debian Sarge with kernel 2.4.27-1-k7-smp will result in hanging the machine!