Im having a few problems with my M2-ATX.
1. When i turn off my car the power pulses and the computer does a hard restart, then 5 secs later will shut down, I have the jumper in position 1. I have tried swapping the IGN and POW lines but I know that is not the issues cause when i turn off the car the computer powers off instantly and when it comes back on i get a warning that the system didn't shutdown properly.
2. If I turn off the engine and leave ignition on after about 10 mins the amp turn on wire will have dropped to 5V's and my amps turn off The voltage is still 12.5V's across the battery and 12.3V's across the amp's, M2, and my distribution blocks
I swapped out the PIC controller for the one with the 1.4 firmware but that didn't seem to fix the problem. Could i maybe have gotten 2 bad controllers? or is my board bad or something else.
I am running the LCD and my HD radio from the 12v lines and 2 amps and a powered antenna from the amp line. All of my car power comes from a 8ga wire connected to a distribution block to 4ga wire to battery. All grounds go to 8ga to distribution block to 4ga to bare metal frame ground. With engine on i read 13.3V's across the amps and 13.5V's across the battery's.
Update: Finnally got a 13.8V AC/DC power supply and the M2 behaves properly. For other reason main power must be fluctuating.