I have been experiencing a problem with a Equium A100, if the system is put into sleep mode and when it resumes from that mode the cpu fan runs constantly not ever turning off, this is happening only when i resume from sleep mode
apart from this the fan runs normanly turning on for a short time when temperature rises and then turning off again unless i wake windows from sleep mode.
You didn’t post any details about the installed system. However, I think its system related issue…possibly some processes running in the background stresses and lock the CPU which causes an higher fan activity.
Would be interesting to know if the same issue happens using an fresh installed OS.
the laptop is running windows vista and i think this problem occurred immediately after installing microsoft updates, i cant remember which updates they were, but one prevented windows from booting so uninstalled them in safe mode but then left my system corrupted, i then got windows to reconfigure its self and now it is actually running better but with this problem
i have tried disabling unneeded services and resuming from sleep but still same problem
my system runs cool and is at idle before i put windows to sleep also the fan, heat sink and grill vents are clean.
i also would like to know what part of windows what driver or kernel component if any may be at fault that communicates with what ever controls the fan.
Googling for “Vista fan running constantly” would shows you many hits…
It looks like this is not a typical notebook hardware problem but Vista system issue.
It’s really difficult to say what update could cause this.
Maybe you should try to change the Vista power management settings and should set to more battery friendly state.