[NTLUG:Discuss] BIOS

[Chris Cox]

Gilbert Morrow wrote:
> I have a strange thing happening to my desktop computer that has got me
> stumped , I just installed a AMD 64bit 3400+ processor in my Shuttle SFF ,
> the processor is stated to run at 1.5v . The strange thing is when I boot to
> SuSE 10.0 the processor is IDed as a 3400+ but at 1005.05 mhz which it is
> not it 2.4 mhz , in Windows the processor is IDed as a 3400+ but at 1mhz
> also , in BIOS I have found that the voltage is going from 1.5v to 1.07v ,
> the 1.07v happens when I boot in SuSE . If I turn the computer off and then
> back on and go straight to Windows the processor is IDed as the correct
> processor and mhz , but if I go into SuSE it changes to 1.07v and is IDed
> 3400+ at 1005.05 mhz every time.
> 
> In other words SuSE is changing the BIOS voltage setting at boot and it
> remains until power is turned off and back on again , what is happening to
> cause this ?
> Phoenix Award BIOS v6.0 , Bios Cache able , Off , flashed to latest Bios ,
> DMI block flashed with no problems .

Powernow (Cool n' Quiet)?

/proc/cpuinfo shows the current speed ... not the speed it is
capable of.  Look in /proc/acpi (somewhere... I don't have
a CPU with PowerNow (Cool n' Quiet) enabled... (but maybe
I haven't checked that).

You're bios may have an option that allows you to turn
that off btw.

Just a wild guess.