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Paper Tape
Posts: 5
Registered: ‎04-12-2012
Location: uk
0 Kudos

G770 fan always on

G770 - i7-2620M 2.7GHz 6GB 750GB

Win 7 HP 64 -  MS update auto - fully updated. 

Less than 12 months old.

Energy management set to high perf - no battery installed - runs off mains only 

Smart power saving & smart sensing all checked in energy management options


Fan now constantly runs - getting worse path couple of months -  check task monitor ~1% utilization or less.

Not a dusty atmosphere, fan ducts all clean, plenty of clearance round fan ducts.

Machine does not run noticeably warm. 





Paper Tape
Posts: 5
Registered: ‎04-12-2012
Location: uk
0 Kudos

Re: G770 fan always on

Surprised that there have been no replies

HAs anybody got any suggestions ? 

Posts: 248
Registered: ‎10-11-2011
Location: france
0 Kudos

Re: G770 fan always on

check for DSDT fixes in this forum , and ask for a BIOS update ...


-- g470 s103t
Lenovo G470 | Model Name : 20078 | M fg Date: 11/03/23 | BIOS: 40CN23WW(V2.09) 06/20/2011 | CPU: i5-2410M | Linux version 3.3.4lenovog470+ (root@lap) (gcc version 4.6.3 (Debian 4.6.3-4) ) #8 SMP Tue May 1 10:23:48 CEST 2012

Lenovo S10-3t | Model Name : 0651 | Mfg Date: 2010/06/08
What's DOS?
Posts: 1
Registered: ‎10-05-2012
Location: CZ
0 Kudos

Re: G770 fan always on

I have the same problem. Clean Win7, loq use, no dust, Energy management,..  but fan still on.


How to solve it?