AA Portable Power Corp M1-ATX User Manual

GND
+
Switch Logic 6-30V DC-DC
ATX PSU
PC ATX
power
MotherBoard
ON/OFF switch
M1-
Battery
Ignition
-
SW
+
J86
LED
J54
J62
8bit MCU
Amplifier
Enable
J98
Reverse and
forward protection
Optional On/OFF switch
M1-ATX
6-24V Intelligent Automotive ATX Power Supply
Installation Guide
Version 1.0
P/N M1-ATX-01
Before you start…
Please take a moment and read this manual before you install the M1-ATX in your
vehicle. Often times, rushing into installing the unit can result in serious damage
to your M1-ATX board, computer and probably your car’s electrical system.
The M1-ATX board has several wires that need to be installed in various places.
When installing, 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.
1.0 Introduction
Thank you for purchasing the M1-ATX power sequencer / vehicle ATX power supply.
The M1-ATX was designed to work with a wide variety of main boards such as the VIA
mini-ITX motherboards as well as Pentium-M Celeron or full power P4 systems.
1.1 M1-ATX Logic Diagram

AA Portable Power Corp M1-ATX Specifications

General

Output Voltage	+3.3V, +5V, +12V, -12V, +5VSB
Form Factor	Mini-ITX
Input Voltage	6V to 24V
Connectors	4 pin CPU, Molex, SATA
Protection Features	Over Voltage Protection, Over Current Protection, Short Circuit Protection

Summary

Before you start...

1.0 Introduction

1.1 M1-ATX Logic Diagram

Visual representation of the M1-ATX power supply's internal logic and connections.

1.2 M1-ATX Connection diagram

Diagram illustrating the connection points and ports of the M1-ATX power supply.

1.2 Power challenges in a Vehicle PC

2.0 Mode of operation

3.0 Troubleshooting

a) Motherboard is not turning ON

Steps to diagnose why the motherboard fails to power up.

4.0 M2-ATX Characteristics

Maximum Power Characteristics

Details on output rails, current limits, and regulation for the M2-ATX.