m2-atx: is mine defective?

**Soc** · 05-30-2006, 09:51 PM

I've recently purchased a few compoents from mp3car.com, and have been reading the forums here regularly. I've got a 2006 Mustang GT and have replaced the Aftermarket deck i have with a custom fit car PC (following advise of a recent poster here who did the same).

I have got everything installed and it's working almost perfect except for one thing. When i turn off the IGN the PC does NOT (19/20 times) shutdown and turn off. It stays on, I have tried many different options but cannot seem to get it to shutdown automatically. I have finally given up and wired a manual switch to the J9 pins.

My question is, why does my setup not work, is there something that i may have setup wrong to cause this problem? I'm 90% sure i connected the 3 power wires up correctly (battery +/- and ACC).

1 out of 20 times, the PC does shutdown when powered off, but the other 19 times i have to power it off with the manual switch. Note that the PC turns on by itself everytime with no flaws.

Also my remote pins does not power my amps, but from searches and reading i think it is caused to a voltage drop, which is disapointing, because i purchased this DC-DC ps with this feature as one of the big ones in mind.

Any have ideas or suggestions reguarding these matters?

Thanks in advance!

[Parts Used (all from mp3car.com)]:
1 - VIA EPIA N10000 Motherboard
2 - M2-ATX Power Supply
3 - Liltouch 7inch LCD touchscreen

**Sidewalksalvage** · 05-30-2006, 09:56 PM

You may just need to adjust the jumper settings on the board. I know there is a time delay before the PSU will shut down the computer. Look it up in the manual, i know that is how the M1-ATX works.

As for the remote turn on, i believe that isnt used to POWER the amp but rather act as athe remote power line. There should be a seperate power line to the amps, the remote line will then just turn the amps on.

If this is what you are doing, maybe the amps need more power to the remote line. In that case, the psu can turn on a relay that then directs 12v from the battery to turn on the amps, achieving the same goal.

**thanatos106** · 05-30-2006, 09:57 PM

What mode offdelay are you using?

Thanatos.

**Soc** · 05-30-2006, 11:03 PM

Originally Posted by Sidewalksalvage

You may just need to adjust the jumper settings on the board. I know there is a time delay before the PSU will shut down the computer. Look it up in the manual, i know that is how the M1-ATX works.

As for the remote turn on, i believe that isnt used to POWER the amp but rather act as athe remote power line. There should be a seperate power line to the amps, the remote line will then just turn the amps on.

If this is what you are doing, maybe the amps need more power to the remote line. In that case, the psu can turn on a relay that then directs 12v from the battery to turn on the amps, achieving the same goal.

I'm sorry should've said it better. The remote wire is to turn on the AMP, and i have it hooked up to the J6 left pin, which according to the insructions is sposed to supply the function to turn the amp on using the "anti-thump" feature it declares to do. I do have a seperate power wire ran from amp to the battery with in-line fuse that powers the amps. I'm pretty sure the pin on the m2-atx doesn't have enough power to turn on both my amps which are connect with remote wire from dash to first amp (under pass seat) then wire from there to the sub amp which resides in the trunk. I know the wire works because if i hook the remote wire to the acc switch, the amp turns on fine.

How do i do this? "In that case, the psu can turn on a relay that then directs 12v from the battery to turn on the amps, achieving the same goal"

Thanks for reply!

**Soc** · 05-30-2006, 11:03 PM

Originally Posted by thanatos106

What mode offdelay are you using?

Thanatos.

Currently the jumper is set to B mode (which is suggested) at 5sec delay | 2 hour hard off.

Which settings should i have enabled in the bios for power settings? The power button is currently set to the 4sec off when pushed down (which is how i recieved it). Is this correct, or should the button be instant-off ? Any other power settings that i should check, to ensure it's not just a setting making the auto shutdown feature unable to do it's job?

**Sidewalksalvage** · 05-31-2006, 08:50 AM

A relay works as an electric switch, when a small voltage is applyed, it opens or closes another circuit. In this case you would use a 12v relay that when current is applyed, it closes the circuit from the battery to the remote turn on lead for the amplifiers. The current for the relay is supplied by the remote turn on lead fromt he M2-ATX

As for what the BIOS setting should be, it should be left at 4sec or whatever it was. This setting is for the hard off option. If it is set to zero, when the M2 trys to shut down the machine, it will shutdown the machine similarly to if you simply pulled the socket from the wall.