mini-box M4-HV ATX Installation Manual

M4-HV ATX

6-34V Intelligent ATX Power Supply

Installation Guide

Version 1.0e

P/N M4-HV ATX-01

Before you start...

Please take a moment and read this manual before you install the M4-HV ATX in your vehicle.
Often times, rushing into installing the unit can result in serious damage to your M4-HV 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-HV ATX power sequencer / vehicle ATX power supply. The
M4-HV ATX was designed to work with a wide variety of main boards ranging from low power
to fully fledged Intel, AMD or VIA models (such as the VIA mini-ITX motherboards as well as
Pentium-M / Celeron / Core2Duo or full power Pentium systems).

M4-HV ATX Logic Diagram

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M4-HV ATX Power Input Connectors (bottom, right side)

Left Battery negative (GND)
Center Ignition (To start connect to Battery +)

Do not use in the standard PSU mode (mode P0)

Right Battery positive (+)

(A) ATX Power Output Connector 20/24 pin connector
(B) 12V-ATX power output connector 4 pin
(C) Configuration dip switch
(J5) For internal use only (do not use)
(J6) Amplifier THUMP wire harness (connects to the M4-HV ATX pin header)
(J3) Fan Header
(J8) USB, Motherboard ON/OFF and THUMP (Thump also available on J6)

1) +5V 6) To Motherboard ON/OFF

2) USB D- 7) To motherboard ON/OFF

3) USB D+ 8) Amplifier Thump

4) GND 9) GND

5) GND N/C (key)

<- J8 shown with cable harness connected to the motherboard ON OFF header (pin 7 and 6)

NOTE:

To reset to the M4-HV ATX settings to the factory defaults (in case changes were made via the USB
uplink), simply power off the unit, connect a jumper to JP1 as shown and then power back up. The LED light will
start to flash rapidly indicating that the factory defaults were loaded. Don't forget to remove jumper when
done ! Disconnect M4-HV ATX from battery for at least 10 seconds. Next time when power is applied, M4-HV ATX
will operate from the factory defaults settings.

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