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6-34V Intelligent ATX Power Supply
Before you start...
Please take a moment and read this manual before you install the M3-ATX-HV
in your
vehicle. Often times, rushing into installing the unit can result in serious damage
to your M3-ATX-HV 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-HV power sequencer / vehicle ATX
power supply.
The M3-ATX-HV 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-HV Logic Diagram
+
Battery
GND
Ignition SW
Amplifier
Enable
(M3-ATX pictured, electrically identical with M3-ATX-HV)
M3-ATX-HV
Installation Guide
Version 1.0c
P/N M3-ATX-HV-01
Reverse and
+
forward protection
-
M3-ATX-HV
1.2 M3-ATX-HV
Connection diagram
6-24V DC-DC
Switch Logic
ATX PSU
8bit MCU
PC
ATX power
Mother Board
ON/OFF switch
Status LED
Serial ctlr
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Related Manuals for mini-box M3-ATX-HV
Summary of Contents for mini-box M3-ATX-HV
-
Page 1: Installation Guide
Thank you for purchasing the M3-ATX-HV power sequencer / vehicle ATX power supply. The M3-ATX-HV 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-HV behaves like a regular ATX power supply. Do not use Ignition switch in this mode. M3-ATX-HV User Guide Page 2...
- Page 3 RAM needs to be powered at all times. No matter how big your battery is, you will eventually drain it if proper actions are not taken. The M3-ATX-HV is addressing these issues by cutting off the 5VSB rail after a pre-defined amount of time (see jumper chart, HARDOFF). During the HARDOFF if the battery level drops below 11.2V for more than one minute, M3-...
- Page 4 During the HARDOFF procedure, the battery levels will be constantly monitored to prevent deep discharge situations. M3-ATX-HV will go to step 1, if ignition is tuned ON again. NOTE. When all config. jumpers are removed, M3-ATX-HV acts as a regular power supply, no ignition timing, no HARDOFF.
- Page 5 Motherboard is not turning ON (cont): Ensure total system power consumption does not exceed the M3-ATX-HV specifications. c) Motherboard is not turning ON (cont). Make sure that the ON/OFF wire harness from the M3-ATX-HV is connected to the ON/OFF switch of your M/B. M3-ATX-HV Characteristics Minimum Input Operating. voltage...
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