CPU frequency issue

[ZeblodS]

Hello,

I have some issues with my CPU and OpenSolaris: I am running a very low frequency, and my RAID-Z pool lag.

My hardware is:
- Motherboard Tyan Toledo i3010W, with the latest 1.12 BIOS ( http://www.tyan.com/support_download_bios.aspx?model=S.S5197 ),
- CPU Intel Core 2 Duo E6700 (2x 2.66Ghz), present in the HCL of the motherboard ( http://www.tyan.com/support_download_cpu2.aspx?socketid=6 ),
- 8GB of RAM.

My OpenSolaris version is:

# uname -a
SunOS ZeblodServer 5.11 snv_130 i86pc i386 i86pc


My CPU can run up to 2.66Ghz. But:

# kstat cpu_info
module: cpu_info instance: 0
name: cpu_info0 class: misc
brand Intel(r) Core(tm)2 CPU 6700 @ 2.66GHz
chip_id 0
clock_MHz 2667
clog_id 0
core_id 0
cpu_type i386
crtime 69,182259277
current_clock_Hz 1000000000
current_cstate 1
family 6
fpu_type i387 compatible
implementation x86 (chipid 0x0 GenuineIntel 6F6 family 6 model 15 step 6 clock 2667 MHz)
model 15
ncore_per_chip 2
ncpu_per_chip 2
pkg_core_id 0
snaptime 2131,159153285
socket_type Unknown
state on-line
state_begin 1290166890
stepping 6
supported_frequencies_Hz 600000000:800000000:1000000000
supported_max_cstates 1
vendor_id GenuineIntel

module: cpu_info instance: 1
name: cpu_info1 class: misc
brand Intel(r) Core(tm)2 CPU 6700 @ 2.66GHz
chip_id 0
clock_MHz 2667
clog_id 1
core_id 1
cpu_type i386
crtime 73,86419178
current_clock_Hz 1000000000
current_cstate 0
family 6
fpu_type i387 compatible
implementation x86 (chipid 0x0 GenuineIntel 6F6 family 6 model 15 step 6 clock 2667 MHz)
model 15
ncore_per_chip 2
ncpu_per_chip 2
pkg_core_id 1
snaptime 2131,159969006
socket_type Unknown
state on-line
state_begin 1290166895
stepping 6
supported_frequencies_Hz 600000000:800000000:1000000000
supported_max_cstates 1
vendor_id GenuineIntel

The only frequency available are 600Mhz, 800Mhz and 1Hgz.
How can I go to 2.66Ghz?

Thank you in advance for your answers, and sorry for my bad english.