Stuff like this is often corrected by a BIOS
update for the laptop.

Alternatively, search support.intel.com for
Speed Step info and problem resolution.

SP2 probably overwrote a system .DLL, driver
or something else that Speed Step uses.


http://support.microsoft.com/default...b;en-us;290301
"Maurice N ~ MVP" wrote in message
...
Cross-posting to hardware group. Can someone help Christoph?

I have not heard of this situation before.
--
Maurice N
MVP Windows - Shell / User
-----

Christoph Mueller wrote:
Hi all
I got some problems after installing service pack 2. I hope you can
help me with this one:

I have an intel centrino laptop with windows xp professional and
recently installed service pack 2 on it.

Under normal circumstances, the laptop does not get very hot, and does
not turn on the fans.

Now, whenever it wakes up from standby or hibernation, it will get
very hot and run the fans almost constantly, with greatly increased
noise and battery consumption. Only after a reset will the power
consumption be back to normal.

This will happen even if no programs are runnning, and the task
manager reports almost no processor activity, or memory access. No
unusual disc access either.

Using the SpeedswitchXP utility I found out that before standby, the
processor speed will always stay below 600Mhz. After waking up, the
speed will frequently spike to 1396Mhz.
The problem persists with or without SpeedswitchXP runnning.

How can I fix this?

Thanks for any help