how to works iMac without screen?

[maikeln]

Hi to all, I have a iMac late 2013 21,5" with de screen broken, the main board not detect screen and fan is full speed and system work very slow. I want use as Mac mini connect to monitor, any idea for resolve the screen issue?

Apple diagnostics show PFM006 and VFD001.



Thanks!!!

 

[maikeln]

added stats errors on sensors

 

[TwoH]

Using an external monitor on (most) the slim LCDs appear to make it very choppy and slow if there is no internal LCD connected - really unsure why Apple have this as a thing.
The reason why your fan is ramping is because you do not have the LCD temperature sensor connected to the machine - which runs through the LVDS/DP connector

 

[maikeln]

Using an external monitor on (most) the slim LCDs appear to make it very choppy and slow if there is no internal LCD connected - really unsure why Apple have this as a thing.
The reason why your fan is ramping is because you do not have the LCD temperature sensor connected to the machine - which runs through the LVDS/DP connector

is posible disable check lcd temperature? The imac not detect lcd when is connect

I disable integrity controller but not resolve the problem

 

[JaGeR888]

Is there a board/connector or way around using only an external monitor? Is there a way to fool the sensor?
SO then from the Apple DisplayPort (LVDS) cable that use to plug into the monitor, work around that to hdmi output?