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6-24V Intelligent Automotive ATX Power Supply
Before you start...
Please take a moment and read this manual before you install the M2-ATX in your
vehicle. Often times, rushing into installing the unit can result in serious damage
to your M2-ATX board, computer and probably your car's electrical system.
The M2-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 M2-ATX power sequencer / vehicle ATX power supply.
The M2-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 M2-ATX Logic Diagram
+
Battery
GND
Ignition
Amplifier
Enable
M2-ATX
Installation Guide
P/N M2-ATX-01
Reverse and
+
forward protection
-
SW
J62
Version 1.0
Switch Logic
6-30V DC-DC
ATX PSU
8bit MCU
M1-
PC
ATX
power
MotherBoard
ON/OFF switch
J86
Optional On/OFF switch
J98
LED
J54
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Table of Contents
Related Manuals for mini-box M2-ATX
Summary of Contents for mini-box M2-ATX
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Page 1: Installation Guide
Thank you for purchasing the M2-ATX power sequencer / vehicle ATX power supply. The M2-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. -
Page 2: Controls And Settings
Optional P4-12V power ATX power connector (to motherboard) To LED (optional) NOTE: “If HARDOFF is set to “never”, M2-ATX will automatically shut down when battery voltage is below 11.2V for more than 1 minute in order to prevent ‘deep discharge’ situations. -
Page 3: Troubleshooting
Ignition=ON during driving. Your computer will remain ON. Ignition=OFF. M2-ATX waits for “OFFDELAY” in seconds (see jumper chart on Page 2) and then it turns the motherboard OFF by sending a signal to the motherboard’s ON/OFF switch. Your computer should turn off gracefully (shutdown procedure). -
Page 4: Input Connectors
(red) while turning the car ON/OFF. You should see 12V (car on) or 0V (car off). b) Motherboard is not turning ON (cont). Check your output cables. Ensure total system power consumption does not exceed the M2-ATX specifications. c) Motherboard is not turning ON (cont). - Page 5 Cool Embedded PCs When operating at 24V or extreme temperatures, de-rate by 25%, ventilation will be required. 12V Rail Output Current Input (V) 12V rail current Input (V) 12V rail current 8.5A 14-18V 20-26V For low input voltage (6-10V) ventilation might be required for peak load 4.0 Support and warranty...
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