amd_64 and cool 'n' quiet

Olimaus · Posted: Tue Jan 20, 2004 9:21 pm Post subject: amd_64 and cool 'n' quiet

hi

is there a way to aktivate cool 'n' quiet on my gentoo box?
i have compiled it into the kernel, but i dont know, how to aktivate it.
is there a way?

mb · Guru Joined: 25 Apr 2002 Posts: 355 Location: Hessen | .de

hi olimaus,

if you have powernow-k8 support in kernel, you can use cpudyn (in portage) to switch between p-states..

hth,
#mb

scoobydu · Posted: Wed Jan 21, 2004 11:12 am Post subject:

Stupid question coming ...

Does this work for the Opterons? or just reg 64FX??
_________________
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crazycat · Posted: Wed Jan 21, 2004 11:32 am Post subject:

It does, but u must unmask cpudyn and enable powernow in krenel and there u can select some "powersaving strategies" (i dont remember em now how they are called ) to change it as as user. u can then use cpudyn as daemon.
It can switch to differen modes dependent on ur cpu use. (u must edit conf.d/cpudyn to setup it)

scoobydu · Posted: Wed Jan 21, 2004 1:58 pm Post subject:

mark · Tux's lil' helper Joined: 04 Jun 2002 Posts: 119

crazycat · Posted: Thu Jan 22, 2004 4:41 am Post subject:

Yeah , u are right ,it doesent work on opertron, i just thought about athlon 64. I read somewhere that opertron does not have theese pins for it because of too much hypertransport busses :>. Anyway , u can hack athlon xp to use powernow when u close some of l5 bridges.
http://www.cpuheat.wz.cz/html/AXP_multiplier/AXP_Multiplier.htm

windex82 · Apprentice Joined: 05 Jun 2003 Posts: 181

how can you tell if your speed is being throttled down or not?

Its running, no errors have ever been givin, and I know it is designed to be unnoticed but how do you find out if its working or not?

crazycat · Posted: Fri Jan 23, 2004 11:13 am Post subject:

Well i dont use gentoo right now cause of some statistik software i am bound to, but i think there is a way to cat it somehow from proc . U can use google to find it:
" To set the frequency, do something like "echo 500 > /proc/powernow". Don't go lower than that, on my 1GHz Athlon, the machine will crash. To show current speed, use cat /proc/powernow "

windex82 · Apprentice Joined: 05 Jun 2003 Posts: 181

I always forget how much info is in /proc...

Busy:

crazycat · Posted: Sun Jan 25, 2004 11:02 am Post subject:

well i found out this:
change speed for example to 800Mhz:
echo "800000" > /proc/sys/cpu/0/speed
there are also speed-max and speed-min files in that dir witch show u the max and min speed.

Olimaus · Posted: Mon Feb 02, 2004 2:17 pm Post subject:

got a problem here...

zk · n00b Joined: 04 Dec 2003 Posts: 18

I too have a MSI K8T and kernel 2.6.1-r1, but use 32bit gentoo. I get the same dmesg error.

zendron · Tux's lil' helper Joined: 28 Jul 2002 Posts: 82

count me too. Same board.

Just looked at the german msi site in the FAQ of the board and there is a entry dated from 02.02.2004, that said that there is a AMD64 limitation for cool'n quiet. Cool'n quiet is only usable with max 2 RAM modules. With putting in the 3rd cool'n quit would be disabled.

This let me thing noobish. I have only one 512MB DIMM, hmm did i put it in the wrong place so the bios things there are 3 DIMMs in.
/me muses**

Olimaus · Posted: Tue Feb 03, 2004 6:09 pm Post subject:

i have dualboot and my cool and quiet works unter winxp.

so it couldn't be a bios problem or something with the board.

i have one dimm in the first mobo slot(512mb corsair).

crazycat · Posted: Wed Feb 04, 2004 2:15 am Post subject:

Well, i have only userspace governor, cause i want to control freqs myself or with daemon, i also have proc/sys/cpu interface and u can use it easily to change freqs in a way i wrote it, and my default governor is userspace. I've got gigabyte k8v800 board and it works ok for me. You should try to experiment with kernel config - for example to change governor or so, maybe it will help. I also got newest bios for my board. Maybe a problem is that msi uses their own chip for cool&quiet stuff, have u tried to disable it?

mb · Guru Joined: 25 Apr 2002 Posts: 355 Location: Hessen | .de

Hi *,

zk · n00b Joined: 04 Dec 2003 Posts: 18

zk · n00b Joined: 04 Dec 2003 Posts: 18

I posted the following on MSI's forum a few days ago, but not a single response so far.

Olimaus · Posted: Thu Feb 05, 2004 5:19 pm Post subject:

Gendal · n00b Joined: 25 Apr 2003 Posts: 18

This thread http://forum.msi.com.tw/thread.php?threadid=38998&sid=ddfe896056f7b456da92db5b4bdaa59a has a new 1.2 bios available at ftp://ftp.heppen.be/msi/K8T-Neo/

Anybody tried it to see if it gets rid of the problem?

Kioshen · Posted: Thu Feb 05, 2004 8:49 pm Post subject:

My systems based on amd64 are using a Tyan K8S and a Asus K8V DLX. No problem there. MSI are having trouble with the bios of this motherboard. I think they didn't even fix the oops in the kernel 2.6 yet. Maybe that's why you are experiencing this problem. Can't remember where I have read the issue but I'm pretty sure it was on the gentoo forum.

cduchesne · n00b Joined: 21 Apr 2003 Posts: 14

zendron · Tux's lil' helper Joined: 28 Jul 2002 Posts: 82

zendron · Tux's lil' helper Joined: 28 Jul 2002 Posts: 82

MSI people look: