Just confirmed this works on the KT333 as well.
On Tuesday 30 July 2002 03:00 am, Gary Jennejohn wrote:
> Michael Nottebrock writes:
> > The following is an OpenPGP/MIME signed message
> > created by Enigmail/Mozilla, following RFC 2440 and RFC 2015
> > --------------enig8A086DA17DCB77CC40984CC4
> > Content-Type: text/plain; charset=us-ascii; format=flowed
> > Content-Transfer-Encoding: 7bit
> > I've been wondering lately why my AthlonTB runs at a quite high
> > idle-temperature and I came across this page:
> > http://vcool.occludo.net/VC_Theory.html
> > Does someone feel like getting something similar into our kernel?
> If you have a VIA KT266A chipset then you can do something like this:
> # turn on HALT bit in register 0x95 of the KT266a -> CPU runs much cooler
> # NOTE: the register had 0x1c when I checked it
> echo Enable halt bit in KT266A
> /usr/sbin/pciconf -w -b pci0:0:0 0x95 0x1e
> which I have in /etc/rc.local. My Athlon runs about 15 C cooler with
> this. Bit 1 of register 0x95 controls idling of the CPU.
> Here's a step-by-step description:
> Do the following as root:
> 1) pciconf -l -v
> this lists all the PCI chipsets found at boot time. I see
> agp0@pci0:0:0: class=0x060000 card=0x30991106 chip=0x30991106 rev=0x00
> vendor = 'VIA Technologies Inc'
> device = 'VT8366/A Apollo KT266/A,KT333 CPU to PCI Bridge'
> class = bridge
> subclass = HOST-PCI
> So I have a KT266(A) at pci0:0:0
> 2) pciconf -r -b pci0:0:0 0x95
> Bit 1 isn't set
> 3) pciconf -w -b pci0:0:0 0x95 0x1e
> turns on bit 1.
> Gary Jennejohn / [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED]
> To Unsubscribe: send mail to [EMAIL PROTECTED]
> with "unsubscribe freebsd-current" in the body of the message
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-current" in the body of the message