Turning a Dell Inspiron 5400 all-in-one motherboard into a standalone machine without the original internal display.
Dell IPTGL-CL11th Gen IntelHDMIMotherboard repair
Project overview
I wanted to reuse the motherboard from a broken all-in-one instead of letting the whole machine become e-waste. The goal was simple: make the board boot and work as a normal compact PC while using an external HDMI display.
The interesting parts were the power-button wiring, fan control, display troubleshooting, and understanding the board's display-detection path.
Key points
Standalone power-button connection.
CPU fan wiring with tach + PWM.
HDMI output troubleshooting.
Boardview / schematic-guided repair.
Photo note
The photograph above is a reference image of the Dell Inspiron 5400 / 7700 AIO IPTGL-CL motherboard. It is not the user's exact board; the detailed board photos can be swapped in later when original project photos are available.
CrystalClearX 