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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
+
Battery
GND
Ignition SW
Amplifier
Enable
M4-ATX
6-30V Intelligent ATX Power Supply
Installation Guide
Reverse and
+
forward protection
-
Version 1.0e
P/N M4-ATX-01
Switch Logic
6-30V DC-DC
8bit MCU
M4-ATX
ATX power
ATX PSU
Mother Board
ON/OFF switch
Status LED
USB
PC
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Summary of Contents for Cartft M4-ATX
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Page 1: Installation Guide
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... - Page 2 (B) 12V-ATX power output connector 4 pin (C) Configuration dip switches (J5) For internal use only (do not use) (J6) Amplifier THUMP wire harness (connects to the M4-ATX pin header) (J3) Fan Header (J8) USB, Motherboard ON/OFF and THUMP (Thump also available on J6)
- Page 3 “Off-delay” setting. P0: In this mode, the M4-ATX behaves like a regular ATX power supply. If J6 is connected to the motherboard, M4-ATX will also send a gratuitous “ON pulse” to the motherboard right after power is first applied.
- Page 4 M4-ATX will go to step 1, if ignition is tuned ON again. NOTE. When all dip switches are off, M4-ATX acts as a regular power supply. M4-ATX will also send a gratuitous “ON” pulse (to the ON/OFF motherboard pins, should you have a wire harness connected to it) when power is applied for the first time.