My laptop is an old Packard Bell EasyNote E6307, with a 1.8GHz AMD Sempron 3000+ CPU, 768MB of RAM, and has XP installed.
After booting up the computer the fan behaves as would be expected, starting up after a few minutes and gaining speed as the computer warms up. It doesn't stop until I either switch the computer off, or put it into standby mode by selecting that option on the shut-down menu.
But if I put it into standby mode, then take it back out again (by pressing the start button), the fan runs considerably slower thereafter. Even if I only leave it in standby mode for a few seconds, the fan starts up running noticeably slower that it did before I put it into stand by mode, and from thereon in slows down even more, and even stops now and again if the computer isn't doing much.
I have not had any temperature related problems, and have always assumed it's supposed to do this, although I have been unable to find any relevant information on the computer or on the internet. There are no visible settings in the BIOS that would seem relevant.
What inspired my question is that I am looking into CPU scaling for a Linux Puppy operating system (that I also currently use on this laptop), because it would be nice to have the fan act as it does after coming out of stand by mode on XP, and I wonder if the computer currently utilises the same or something similar.
I can't tell what temperature the CPU operates at in XP, but the range of temperature I have seen while using Linux Puppy, once the computer has warmed up, is from 59 - 67 degrees C. I would not want to slow the fan with the CPU at these temperatures, and if the computer wouldn't do so either, then I assume it must somehow run at lower temperatures after coming out of standby mode on XP.
Any advice would be much appreciated.
Other information that might be relevant is that according to Linux Puppy, the CPU has an AMD K8 thermal sensor embedded.
Edited by Al1000, 28 May 2014 - 03:35 PM.