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M2-ATX-HV 140W Intelligent DC-DC PSU

by CarNetix
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140W Intelligent Automotive DC-DC ATX PC Power Supply
M2-ATX is an intelligent, high power, vehicle (car / boat / electric cart) 12V DC-DC ATX PC power supply designed for car pc and battery powered applications. Designed to provide power and to control the ON/OFF switch of a motherboard (car PC) based on ignition status, M2-ATX is a wide input (6 to 32V) vehicle battery operated ATX power supply capable of surviving tough vehicle engine cranks (down to 6V) as well as transient over-voltage situations. Just connect it to vehicle's battery and power up your PC!

Vehicle batteries can provide a limited amount of electricity to your devices. Even if your computer is completely OFF, a PC will still consume a few hundered milliwatts, needed to monitor PC ON/OFF status. When the computer (car pc) is in the suspend/sleep mode, it will consume even more power, because the RAM needs to be powered at all times. The power consumption in the suspend mode is few watts. No matter how big your car battery is, a PC will eventually drain your vehicle's battery in a matter of days.

While in deep sleep mode, M2-ATX constantly monitors your car battery voltage levels, preventing deep discharge situations by automatically shutting down (using a built-in shutdown controller) until battery levels reach safe levels again. No more dead car batteries, no more computer resets during engine cranks, along with multiple timing schemes, small formfactor and very competitive price makes the M2-ATX the premier solution for dc-dc ATX vehicle / car PC power supply solutions.

Onboard Startup/Shutdown Controller

M2-ATX has 8 user selectable microcontroller driven timing modes, allowing you to choose up to 8 ignition/shutdown car pc timing schemes via a built-in shutdown controller. By removing all user-selectable jumpers, M2-ATX becomes a traditional PC PSU with no ignition control (shudown controller bypassed) and it can be used in non-vehicle computer applications.

Dimensions and Compatability

The M2-ATX measures 1.77"(W)x6.31"(L) and is less than 1" high which makes it compatible with the Ampie enclosure and with most Casetronics and Morex enclosures and it is footprint compatible with the M1-ATX. The same version of microcode will run on both M1-ATX and M2-ATX.

Note: M2-ATX provides up to 8A on the 12V rail, making it ideal for operating most low power P4, P4-M, Celeron, ADM systems. Low power Geode and VIA processors (C3, C7) will work as well, leaving ample power for 12V or 5V peripherials (multiple 3.5" hard drives, CDROM, etc).


The M2-ATX Bundle comes with:
- 20 pin ATX cable extender plus HDD and Floppy power (9inch)
- Power input cable harness terminated in 0.25' fastons (12inch)
- 2 pin M/B on/off power ON control wire harness (9inch)
- 3 jumpers to control various power sequencing schemes

NEW 140 watts output

Ideal car Power supply for operating low power P4, P4-M, Celeron, AMD systems

ATX, 6-32V wide input range

Intelligent shutdown controller

ON/OFF motherboard control

Survives vehicle engine cranks

Battery deep discharge prevention

High efficiency, 140 watts output

"Anti-Thump" Amplifier remote control

15A automotive fuse (mini-blade)

VIA, P4 and AMD CPU support

Minimum Input Operating. voltage: 6V
Maximum input Operating voltage: 32V (clamping will occur at 25-27 V)
Input current limit (fuse protected): 15A (15A mini-blade fuse)
Max Output Power: 140Watts
Operating temperature: -40 to +85 degrees Celsius (-40F to 185F)
Storage temperature: -55 to +125 degrees Celsius (-67F to 257F)
MTBF: 100,000 hrs @ 50C
Efficiency: >94%, all rails combined, 50% load
PCB size: 160x45mm (6.3"x1.78")
Input connectors Faston: Faston 0.25 terminal
Output Connector ATX Power: 20 pin (Molex P/N 39-01-2200)
Maximum Power Characteristics
Output Rail Current(Max) Current Peak (<60sec) Ripple (V p-p) Regulation
5V 6A 8A 50mV 1.5%
3.3V 6A 8A 50mV 1.5%
5VSB 1.5A 2A 50mV 1.5%
-12V 0.15A 0.2A 150mV 5-%
12V 7A 8A 100mV 2%

Additional product information:

M2-ATX-HV Manual

Please note:

Mp3Car will not provide tech support in regards to use and set-up of this product. Customers are expected to use the Mp3Car forums for assistance in these areas. A good place to start is the Mp3Car Power Supply sub-forum. Registration on the forums is easy and free.

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2415 Foster Avenue Baltimore, MD 21224 United States

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