Hi All

Anyone has any ideas

Dell Inspiron 8600 centrino dothan 2000 win XP home SP2, CPU will recently only run at 599mhz instead of 2000. Bios flashed with no improvement, No settings for multiplier in dell bios.  to follow info from pcwizard

General Information :     
Real Frequency :    599.49 MHz
Multiplier :    6x
Low/High Multiplier :    6x / 20x
Multiplier Locked :    Yes
Marketing Frequency :    2000 MHz

 Front Side Bus Information :     
Bus Speed :    99.9 MHz
FSB Frequency :    399.7 MHz (QDR)

 Initial Frequencies :     
Frequency :    2000 MHz
Bus Speed :    100.00 MHz (QDR)
Multiplier :    20x

 Control Clock Frequency :     
Enhanced SpeedStep (EIST) :    Yes   -   Enabled
C1E - Enhanced Halt Mode :    No
Dynamic FSB :    No
Dynamic Acceleration (IDA) :    No

 Thermal Information :     
Thermal Design Power :    3 W
Core Power :    0.9 W (estimated)
Resistance :    26.69 °C/W (estimated)
Thermal control TM1 :    Yes   -   Enabled
Thermal control TM2 :    Yes   -   Enabled
Thermal Control Circuit :    Yes
Digital Thermal Sensor :    No
Clock Modulation (ODCM) En...    No

 Processor Performance Information :     
Throttle Mode AC :    Adaptive
Throttle Mode DC :    Adaptive
Current Configuration :    Adaptive
Throttle :    179 MHz
CPU Shutdown Temperature :    90°C

 Processor Power Management Information :     
Processor Throttling :    Yes
Throttle Range :    11% - 30%
Active Power Scheme :    Minimal Power Management



Any help much appreciated

Keith