Hello,
I currently own an Acer laptop equipped with the Mobile Sempron 3000+, with the 'Power Now!' function. The problem is that it started running continuously at full speed (1800 mhz) even when the system is idle, for no apparent reason, instead of the normal 800 mhz. It's a bit of a problem regarding battery life and the noise generated by the fan.
I've tried reinstalling the latest CPU drivers, and eliminated possible background tasks that could've been the cause of this (such as norton antivirus scans), but still no change.

What could I do to resolve this ?

Thanks.

start->control pannel->power options and set the power scheme to power now, or power gear, or whatever you have installed to regulate the performance...

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Desktop:
AMD Athlon XP 2800+ (Barton) @ 200x10.5=2100MHz | Asus A7N8X Deluxe | Corsair 2xCMX512-3200C2PT @ 2.5-3-3-8 | MSI GeForce FX 5600 128MB | Hitachi Deskstar T7K250 160GB SATA II | Antec NeoPower 480W | Creative SoundBlaster X-Fi Fatal1ty

Laptop:
Dell Latitude 120L | Intel Pentium M 740 | OCZ 2x1GB PC2-5400 | Western Digital Scorpio WD1200VE 120GB

Oooh, thanks a lot for the info, that was indeed the solution to the problem /biggrin.gif' border='0' style='vertical-align:middle' alt='biggrin.gif' />

A friend got the very same problem with his laptop, I looked around a bit and found that was it /tongue.gif' border='0' style='vertical-align:middle' alt='tongue.gif' />

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Desktop:
AMD Athlon XP 2800+ (Barton) @ 200x10.5=2100MHz | Asus A7N8X Deluxe | Corsair 2xCMX512-3200C2PT @ 2.5-3-3-8 | MSI GeForce FX 5600 128MB | Hitachi Deskstar T7K250 160GB SATA II | Antec NeoPower 480W | Creative SoundBlaster X-Fi Fatal1ty

Laptop:
Dell Latitude 120L | Intel Pentium M 740 | OCZ 2x1GB PC2-5400 | Western Digital Scorpio WD1200VE 120GB