LinuxQuestions.org - Wrong CPU Speed on Toshiba Tecra

I have a Toshiba Tecra M2-S430 laptop, with a 1400 MHz Intel Pentium M and a Centrino chipset. My problem is that the CPU does not seem to be running at full speed:

Code:

ben@ulysses ~ $ cat /proc/cpuinfo

processor      : 0

vendor_id      : GenuineIntel

cpu family      : 6

model          : 9

model name      : Intel(R) Pentium(R) M processor 1400MHz

stepping        : 5

cpu MHz        : 598.539

cache size      : 1024 KB

fdiv_bug        : no

hlt_bug        : no

f00f_bug        : no

coma_bug        : no

fpu            : yes

fpu_exception  : yes

cpuid level    : 2

wp              : yes

flags          : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 tm pbe est tm2

bogomips        : 1197.58

I am running Gentoo, and have tried compiling all of the ACPI and CPU frequency scaling options into the kernel and as modules, but with no change. I got the same reading even when I booted the machine to Knoppix.

I searched around, and found this thread: http://www.linuxquestions.org/questi...ecra+cpu+speed. I changed the settings suggested in the BIOS, but this has not made a difference either. Can anyone shed any light on this?