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mini-box M4-HV ATX Installation Manual

6-34v intelligent atx power supply
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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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Summary of Contents for mini-box M4-HV ATX

  • Page 1: Installation Guide

    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.
  • Page 2 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.
  • Page 3 “Off-delay” setting. P0: In this mode, the M4-HV ATX behaves like a regular ATX power supply. If J6 is connected to the motherboard, M4-ATX-HV will also send a gratuitous “ON pulse” to the motherboard right after power is first applied.
  • Page 4 Most of the times, your battery will stay at 13.5V (while car is running) but extra precautions need to take place in order to prevent such situations. M4-HV ATX can operate as low as 6V and as high as 34V while providing strict regulation on all rails along with input voltage clamping and reverse protection.
  • Page 5 Motherboard is not turning ON: Check input cables.Make sure you have a a well tighten wire harness. Measure the un-switched pin (red). You should see 12V (car on) or 0V (car off). NOTE: In P1, P2, P3 modes if V(In) is < 12V, the M4-HV ATX will not start.
  • Page 6 M4-HV ATX Characteristics Minimum Input Operating. voltage Maximum input Operating voltage 34V (clamping will occur at 36-38V) Deep-Discharge shutdown threshold 11.2V Input current limit (fuse protected) Mini-Blade 25 A Max Output Power 220 Watts (275 Watts PEAK) Deep Sleep Current Consumption.