M4-ATX
6-30V Intelligent ATX Power Supply
Installation Guide
Version 1.0e
P/N M4-ATX-01
Before you start…
Please take a moment and read this manual before you install the M4-ATX in your
vehicle. Often times, rushing into installing the unit can result in serious damage
to your M4-ATX board, computer and probably your car’s electrical system.
Always
double check the polarity
of your wires with a voltmeter.
Avoid using the cigarette plug as a power source, often times the contacts are not
capable of delivering high current to your PC.
Introduction
Thank you for purchasing the M4-ATX power sequencer / vehicle ATX power supply.
The M4-ATX was designed to work with a wide variety of main boards ranging from low
power to fully fledged Intel, AMD or VIA motherboards.
M4-ATX Logic Diagram
GND
+
Switch Logic
6-30V DC-DC
ATX PSU
PC
ATX power
Mother Board
ON/OFF switch
M4-ATX
Battery
Ignition SW
-
+
USB
8bit MCU
Amplifier
Enable
Reverse and
forward protection
Status LED
