[Ask Help] Why my X61 Core2DuoT9300 only read clock speed 1.2Ghz max from the capasity @2.5Ghz

[iF7F8]

Dear lenovo comunity

i really need helps for my issue here as i already looking lots information on the net but cannot found the answer:

I have Thinkpad X61 with spec like this after benchmark with AIDA64/Everest:

Intel Core2duo T9300 (Peryn) @2.50Ghz

Cpu clock :  1200Mhz (original 2500Mhz)

Cpu multiplier: 6x

Cpu FSB : 199Mhz (original 200Mhz)

Memory Bus: 332.5 mhz

L2 cache : 6Mb

Motherboard: lenovo Thinkpad X61

HD: 250Gb , Hitachi SATA 5400rpm , 8mb buffer

bios: BIOS Type Phoenix (04/18/08)

This laptop using Vista as the OS. 

Previously I  wonder why this laptop performance is quite similar with my old intel-P3 500mhz , very slow

so after benchmark with software i just know that my laptop runs half than the peak performance : @1.2Ghz compare to the maks capasity @2.5Ghz , so i already knew this is causes of the slow performance.

I had another laptop toshiba T5500,  each of the cpu core read with maximum @1.5Ghz , so i think there is something Big Miss here as my X61 compare to old toshiba could say 2 times slower 

So i hope any friends  could help guide me how to set the clock speed into the original as should be

i try to login into the bios but cannot see any option to change the speed

Thank you somuch 

Rgds

gon

[richk]

your bios is old, and may not recognize the newer cpu correctly. Try updating the bios

[IvanAndreevich]

Sounds like a power setting issue or an old BIOS like richk suggests. Make sure you set it to Max Performance, and update the BIOS.

[iF7F8 · Accepted solution]

THanks All I have found the solution for this issue at

 http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-71222#DOCTOP

 http://forum.thinkpads.com/viewtopic.php?f=30&t=92302&view=previous

conclusion:

The clock speed will be lower than normal speed if i plug off the batery and use 65w Adapter

When i use my adapter (65w) along with the Battery the clock cpu core back to normal (2.5Ghz)  , another solution if we want to use Adapter without Battery plug in. we have to change the adapter to 90w series

case closed now

TQ