your z600 has a Ambient Air Sensor that is part of the power cable assembly, when this sensor fails it will cause the case fans (but not the cpu fans) to ramp up to full speed shortly after power on
the bios will show the ambient air temp as "0" if the sensor has failed
the sensor is embedded in the power cable near the end of the black sleeving at the end near the power switch
it is a common plastic 2n222a transistor that has 3 pins, with 2 leads connected into one and the 3rd lead by itself
if you carefully open your cable you will see this transistor, and the white and brown wires that connect to it
simply wire up/solder the new transistor the EXACT same way making sure the same two leads on the new transistor match the old and that the white/brown wires connect to the same pins on the new transistor as the old one did
Thank you for your answer.
So I took a look in the BIOS of the computer and it turns out that it gives me the temperature and the speed of the fans without problems.
I haven't found an automatic mode, but I can change the speed of the centilators in "temperature". They are at the minimum, if I put the maximum we are on the noise of a cruise ship I think ... BTW i didn't find any 2N2222 in my workstation, maybe hidden somewhere...
If the fans are already at minimum (which is already noisy), that's okay, just could that be a problem for the temperature of the components?
If so, we would need a means to manage them automatically (see manually) without going through the BIOS. I will check at what temperature the components go when i play.
Thank you in advance.
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