Comment 15 for bug 1049064

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Mateusz Bielecki (sleptak) wrote :

Hi, I think that I should write here as I was also having this problem for over a year. Last week I gave google next try and it occured that it's hardware problem in some of dell's laptops family. I've been using i8k since ubuntu 12.10 till yesterday. Look on this post: http://en.community.dell.com/support-forums/laptop/f/3518/t/19511930.aspx

I've added heat sink like this guy suggested and now everythink works like should without i8kfan. I have checked temperatures and it looks that dell is suppressing fan control in windows with drivers. I've tested it in such way that after turning laptop on I stopped on uboot screen and waited for couple of minutes. Fan shortly hit the maximum so then next step was to boot into windows. Fans stopped immediately after couple of seconds but I've checked and temperature of PCH was always >65Degress. Now after installing termalpad and small copper heat sink temp is ~50 and even on grub menu fans are quiet. I think this is only reasonable solution. Some dell's guy just f-u-c-k-e-d up design cause thermal plate which covers almost all main board is cut on PCH chip so it is without any thermal sink. they should repair such things on warranty. Hope this helps, after over a year it is really pleasant to have it finally quiet.