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disabling second fan
Posted: Fri Aug 15, 2014 7:00 am
by vavet
Judging by its position the second fan is mainly for the sim slot. When the fan is faulty the "fan error" makes the machine unusable. This makes no sense especially when the sim card is not installed. Simply unplugging doesn't seem to help, the error is still there.
So I was wondering if someone knows a way to completely remove the fan and have the machine working?
Re: disabling second fan
Posted: Fri Aug 15, 2014 8:55 am
by wileE
vavet wrote:the "fan error" makes the machine unusable.
Why unusable? Press esc. The machine will boot even without the main fan. Not recommended though.
And no, never heard of anyone managing to disable the bios check for the second fan.
Re: disabling second fan
Posted: Fri Aug 29, 2014 5:04 am
by vavet
I know that there is a solution that removes the fan error. Some kind of dummy cartridge is being attached, but don't know the details...
here is a picture
http://imgur.com/2YLITTS
any hints?
Re: disabling second fan
Posted: Sat Aug 30, 2014 4:04 am
by axur-delmeria
Maybe a small circuit that mimics the RPM pulse signal when voltage is applied?
Re: disabling second fan
Posted: Sat Aug 30, 2014 12:49 pm
by vavet
I believe it is just a resistor with heat protection
Re: disabling second fan
Posted: Wed Sep 10, 2014 9:32 am
by wileE
The scond fan replacement here:
Bild "2fan-sim-boardahkzm.jpg" anzeigen.
is likely to be this:
http://forum.effizienzgurus.de/showpost ... ostcount=8
As to your search for a T9300 board without the second fan - i believe they were never built.
Re: disabling second fan
Posted: Wed Sep 10, 2014 10:16 am
by vavet
Thanks for a hint, I just bought one today from a Japanese guy.
So t9000 with fan is welcome
BTW, for x61s (not x61) it seems that you can just connect the signal wire from the second fan to the one on the main fan. That will clean the fan error message. Unfortunately it didn't work on x61.
