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6-24V Intelligent ATX Power Supply
Before you start...
Please take a moment and read this manual before you install the M3-ATX in your
vehicle. Often times, rushing into installing the unit can result in serious damage
to your M3-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 M3-ATX power sequencer / vehicle ATX power supply.
The M3-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 Pentium systems.
M3-ATX Logic Diagram
+
Battery
GND
Ignition SW
Amplifier
Enable
M3-ATX
Installation Guide
P/N M3-ATX-01
Reverse and
+
forward protection
-
2
Version 1.0b
Switch Logic
6-24V DC-DC
ATX PSU
8bit MCU
M1-
PC
ATX
power
Mother Board
ON/OFF
6
switch
8
Status LED
4
Serial ctlr
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Related Manuals for Cartft M3-ATX
Summary of Contents for Cartft M3-ATX
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Page 1: Installation Guide
Thank you for purchasing the M3-ATX power sequencer / vehicle ATX power supply. The M3-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 Pentium systems. - Page 2 IMPORTANT: Always use the “Hibernate” feature on your PC, never use “Standby”. P0: In this mode, the M3-ATX behaves like a regular ATX power supply. P1: Sends ON pulse to motherboard when ignition is ON for more than 2 seconds, sends OFF pulse to motherboard 5 seconds after ignition is turned off.
- Page 3 Loud amplifier pops when PC starts. If your PC is connected to your car amplifier, you will hear a loud pop when the computer is first started. The M3-ATX has an ‘anti-thump’ control that will keep your amp OFF while the PC starts. Simply connect the white wire from your M3-ATX cable harness to your amplifier remote control pin.
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Page 4: Troubleshooting
NOTE. When all config. jumpers are removed, M3-ATX acts as a regular power supply, no ignition timing, no HARDOFF. M3-ATX will send a gratuitous “ON” pulse to the M/B when power is applied for the first time. Do not connect the on/off switch if you don’t want your PC to be started automatically. - Page 5 Embedded PC Solutions 5VSB 1.5A 1.5% -12V 0.15A 0.2A 4-6A (see below) 8A (see below) When operating at <8V or >16V or extreme temperatures, de-rate by 25-50%, ventilation will be required. 12V Rail Output Current (buck/boost converter) Input (V)