Fan Speed goes high when coming out of standby Acer (TravelMate 6463)

This problem may not be only related to my particular model of Acer laptop, but I'm experiencing this on a TravelMate 6463.

Normally, the fan speed varies with internal temperature.

If I put the laptop into standby and it has time to cool down (no more than an hour) then when I wake it back up again, the fan runs at a high speed indefinately. Cool air comes out of the vent and SpeedFan says that the temperatures are really low. I can get it to return to the expected behaviour of varying with the internal temperature by setting the CPU to "Max" and giving it some hard work: at a high temperature threshold, the fan speed drops suddenly and then varies as usual.

If I don't leave it in standby long enough to cool down, this doesn't happen.

Acer say that it's a known Microsoft problem, but I haven't found any evidence of this so far. Has anybody and advice or experience in this area?

 

Unknown to me- didn't experience it neither on XP nor on Vista.
What's more I don't think system manages fan in any way so I suppose it's bios related or similar hardware problem of your model as neither of my Acers (different models) has this problem

 

I've experienced it on two Acer TravelMate 6413 laptops as well as this TravelMate 6463, which has been back to Esplex/InfoTeam under warranty many times. Changing the mainboard and installing the latest BIOS at the time had no effect.

I feel like you, downloads, that it's a BIOS issue that Acer haven't been able to address. I'd really like to know if anyone has had the same experience as me or if an owner of another TravelMate can reproduce the issue.