Note on archived topics.
09-06-2013 07:02 AM
After cleaning my old 4510s (full wipe out, changing thermal paste etc.) I had issue with turning it on, and at the end issue was caused by one of screws that was to tightened in, loosing it a bit solved issue, atleast it looked like it. Day after I got error 501 when starting system (Bios corrupt or missing), flashing Bios with latest version sorted issue, but after that my CPU fan is constantly running on 100%, tried several programs for controll but none can detect it, only Aida64 is detecting that its running on 30% while its obvius its on 100%.
After a bit of research I cheched motherboard inch by inch if there is maybe any broken capacitator, cable or something and everything seems fine. So I ended up in trying to edit DSDT table, issue is I can't find lines that are responsible for fan speed, so if anyone can assist in searching lines (pointing to them) or some other possible solution I would be really thankfull.
Here is my DSDT table: http://pastebin.com/BpxHpaZJ
09-06-2013 08:12 AM
Well, managed to find lines responsible for Fan speed controll, and after changing and updating, fan is still on 100%, even tried to set all values to 10% or 20% etc, it just ignores it and its still on full power, system is cold, its not overheating issue... Only thing i can try is to reinstall windows (win 7 x64) but I doubt it will help... Suspecting its hardware issue (altho I crossed that possibility)... Anyone had similar issue maybe?
01-11-2014 08:40 AM
I have exactly the same problem whith the fan on my 4510s. I have tried some programs like "TPFanControl by troubadix" and HPFanControl from http://www.staff.uni-marburg.de/~schmitzr/donate.html but it didn't work and can't even correctly display the temperature(there is always 0C). Sadly there is no way to downgrade from BIOS ver. F20.
ruff_desperado, what lines in DSDT table have you changed? Is there is anywere a solution for this issue?
06-01-2016 06:12 AM - edited 06-01-2016 06:12 AM
It was a loong time but leaving reply for further searches if someone ends up with same or similar issue.
After extensive testing issue that is causing fan to go full speed is broken thermometer on motherboard. Nothing can fix this, mentioned laptop is actually still working fine after years, i just changed one fan over course. Issue can't be repaired since BIOS doesn't allow fan control or even have support for it.