powernow-k7: changing of VID is posible, says tom...

powernow-k7: changing of VID is posible, says tom...

[Nebojsa Trpkovic]

So, I've read many things about this and one of them was thread:
    http://www.linux.org.uk/mailman/private/cpufreq/2004-June/003812.html
about "[PATCH] powernow-k7: Userspace PST for Athlon XP-M on desktop 
boards".

I know that only FID of mobile CPUs can be changed on desktop board. 
Personaly, I've modded my Barton to Mobile one but I had no time to try 
changing FID in Linux. In Window$ all worked well.

BUT !!!

Today, I've read on Tom's Hardware that there IS way to change VID on 
the fly. He says that "AMD keeps the corresponding utility under lock 
and key for security reasons."
    http://www.tomshardware.com/cpu/20041001/index.html

So, if AMD has that utility for Window$,
    http://www.tomshardware.com/cpu/20041001/athlon-underclocking-06.html
I guess it's posible to make something similar for Linux

Or, maybe, Tom just wants to raise number of hits for his site? ;)

Re: powernow-k7: changing of VID is posible, says tom...

[Harald Milz]

Nebojsa Trpkovic <tnt@professor.ru> wrote:

> Today, I've read on Tom's Hardware that there IS way to change VID on 
> the fly. He says that "AMD keeps the corresponding utility under lock 
> and key for security reasons."

Without the motherboard hardware supporting VID changes, this tool does
nothing. This is also what the article says: "But the motherboard, too, must
fulfill requirements in handling a pseudo-mobile processor." So - with some
boards it may work, most board don't recognize (i.e. connect) the VID pins.
If somebody has a list of boards that do use the VID pins - that would be
great. 

-- 
"You've got to have a gimmick if your band sucks."
		-- Gary Giddens

Re: powernow-k7: changing of VID is posible, says tom...

[Nebojsa Trpkovic]

I'm stucked!

What should I do if I get:

> [root@beta tnt]# insmod 
> /lib/modules/2.6.8-dynfreq/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko 
> mycpuid=0x6a0 myfsbspeed=200 mymaxfid=0x00 mystartvid=0xb 
> mynumpstates=5 myfids=0x00,0x0a,0x06,0x04,0x12 
> myvids=0x0b,0x0d,0x13,0x13,0x13
> insmod: error inserting 
> '/lib/modules/2.6.8-dynfreq/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko': 
> -1 No such device
> [root@beta tnt]# insmod 
> /lib/modules/2.6.8-dynfreq/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko 
> mycpuid=0x7a0 myfsbspeed=200 mymaxfid=0x00 mystartvid=0xb 
> mynumpstates=5 myfids=0x00,0x0a,0x06,0x04,0x12 
> myvids=0x0b,0x0d,0x13,0x13,0x13
> insmod: error inserting 
> '/lib/modules/2.6.8-dynfreq/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko': 
> -1 No such device

Re: powernow-k7: changing of VID is posible, says tom...

[Harald Milz]

Nebojsa Trpkovic <tnt@professor.ru> wrote:
> I'm stucked!

> What should I do if I get:

use modprobe. powernow-k7 has some dependencies. 

-- 
If everybody minded their own business, the world would go
around a deal faster.
		-- The Duchess, "Through the Looking Glass"

Re: powernow-k7: changing of VID is posible, says tom...

[Nebojsa Trpkovic]

Harald Milz wrote:

>use modprobe. powernow-k7 has some dependencies. 
>
>  
>
Same story:

[root@beta tnt]# modprobe powernow-k7 mycpuid=0x6a0 myfsbspeed=200 
mymaxfid=0x00 mystartvid=0xb mynumpstates=5 
myfids=0x00,0x0a,0x06,0x04,0x12 myvids=0x0b,0x0d,0x13,0x13,0x13
FATAL: Error inserting powernow_k7 
(/lib/modules/2.6.8-dynfreq/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko): 
No such device
[root@beta tnt]# modprobe powernow-k7 mycpuid=0x7a0 myfsbspeed=200 
mymaxfid=0x00 mystartvid=0xb mynumpstates=5 
myfids=0x00,0x0a,0x06,0x04,0x12 myvids=0x0b,0x0d,0x13,0x13,0x13
FATAL: Error inserting powernow_k7 
(/lib/modules/2.6.8-dynfreq/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko): 
No such device

I guess that my CPU can not be recognised because it's modded Barton. I 
made it 'mobile' by connecting L5 bridge on it. But, in Window$ 
everything works fine and I'm able to change multiplier on the fly.
Maybe I just use wrong mycpuid, but I've tried 0x6a0 and 0x7a0... :(

Is there any way to force powernow to work without checking of CPU?

Re: powernow-k7: changing of VID is posible, says tom...

[mark newman]

 
I'm no expert here, but you may find more info using
dmesg.  Also should fsb be 100 instead of 200?  If you
have /dev/cpuid support in your kernel, I think
cpuinfo will give you the cpuid (I think so anyway)

I should say that I couldnt get this to work either,
although others on the list certainly have :).

Mark

--- Nebojsa Trpkovic <tnt@professor.ru> wrote: 
> Harald Milz wrote:
> 
> >use modprobe. powernow-k7 has some dependencies. 
> >
> >  
> >
> Same story:
> 
> [root@beta tnt]# modprobe powernow-k7 mycpuid=0x6a0
> myfsbspeed=200 
> mymaxfid=0x00 mystartvid=0xb mynumpstates=5 
> myfids=0x00,0x0a,0x06,0x04,0x12
> myvids=0x0b,0x0d,0x13,0x13,0x13
> FATAL: Error inserting powernow_k7 
>
(/lib/modules/2.6.8-dynfreq/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko):
> 
> No such device
> [root@beta tnt]# modprobe powernow-k7 mycpuid=0x7a0
> myfsbspeed=200 
> mymaxfid=0x00 mystartvid=0xb mynumpstates=5 
> myfids=0x00,0x0a,0x06,0x04,0x12
> myvids=0x0b,0x0d,0x13,0x13,0x13
> FATAL: Error inserting powernow_k7 
>
(/lib/modules/2.6.8-dynfreq/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko):
> 
> No such device
> 
> I guess that my CPU can not be recognised because
> it's modded Barton. I 
> made it 'mobile' by connecting L5 bridge on it. But,
> in Window$ 
> everything works fine and I'm able to change
> multiplier on the fly.
> Maybe I just use wrong mycpuid, but I've tried 0x6a0
> and 0x7a0... :(
> 
> Is there any way to force powernow to work without
> checking of CPU?
> 
> 
> 
> 
> 
> _______________________________________________
> Cpufreq mailing list
> Cpufreq@www.linux.org.uk
> http://www.linux.org.uk/mailman/listinfo/cpufreq
>  


	
	
		
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Re: powernow-k7: changing of VID is posible, says tom...

[mark newman]

Sorry thats x86info not cpuinfo

 --- mark newman <emergant2000@yahoo.co.uk> wrote: 
>  
> I'm no expert here, but you may find more info using
> dmesg.  Also should fsb be 100 instead of 200?  If
> you
> have /dev/cpuid support in your kernel, I think
> cpuinfo will give you the cpuid (I think so anyway)
> 
> I should say that I couldnt get this to work either,
> although others on the list certainly have :).
> 
> Mark
> 
> --- Nebojsa Trpkovic <tnt@professor.ru> wrote: 
> > Harald Milz wrote:
> > 
> > >use modprobe. powernow-k7 has some dependencies. 
> > >
> > >  
> > >
> > Same story:
> > 
> > [root@beta tnt]# modprobe powernow-k7
> mycpuid=0x6a0
> > myfsbspeed=200 
> > mymaxfid=0x00 mystartvid=0xb mynumpstates=5 
> > myfids=0x00,0x0a,0x06,0x04,0x12
> > myvids=0x0b,0x0d,0x13,0x13,0x13
> > FATAL: Error inserting powernow_k7 
> >
>
(/lib/modules/2.6.8-dynfreq/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko):
> > 
> > No such device
> > [root@beta tnt]# modprobe powernow-k7
> mycpuid=0x7a0
> > myfsbspeed=200 
> > mymaxfid=0x00 mystartvid=0xb mynumpstates=5 
> > myfids=0x00,0x0a,0x06,0x04,0x12
> > myvids=0x0b,0x0d,0x13,0x13,0x13
> > FATAL: Error inserting powernow_k7 
> >
>
(/lib/modules/2.6.8-dynfreq/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko):
> > 
> > No such device
> > 
> > I guess that my CPU can not be recognised because
> > it's modded Barton. I 
> > made it 'mobile' by connecting L5 bridge on it.
> But,
> > in Window$ 
> > everything works fine and I'm able to change
> > multiplier on the fly.
> > Maybe I just use wrong mycpuid, but I've tried
> 0x6a0
> > and 0x7a0... :(
> > 
> > Is there any way to force powernow to work without
> > checking of CPU?
> > 
> > 
> > 
> > 
> > 
> > _______________________________________________
> > Cpufreq mailing list
> > Cpufreq@www.linux.org.uk
> > http://www.linux.org.uk/mailman/listinfo/cpufreq
> >  
> 
> 
> 	
> 	
> 		
>
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