Hey Guys, I also got an m4-atx - it seems to be working all good except for the shutting down problem as you all are experiencing.
I currently have mine all wired up according to documentation however, i did notice, as in another post i saw on here that about 75 - 80% of the time it will shut down properly if i turn my ignition off then on then off again. It waits for about 5 sec, then hibernates. Any other time it will just hard-off, then windows will have to fully boot on next boot-up.
USB Connection seems to be working fine as a HID Device, if only we had somthing to update it with.
I had the same problem, and since I am in Australia I really did not want to send my unit all the way back to the USA so I built myself a simple "in circuit serial pogrammer" (ICSP) and asked mini-box for the new firmware and I reprogrammed the microcontroller.
If you have access to an ICSP or are good with electronics you can build one yourself and do this as well to get the new firmware. If not you'll have to send the unit to either back where you bought it from or mini-box to have the new firmware written to the unit.
i'm not really having any of those problems with my M4, the problem i'm having is that the M4 wont recognize the power. there is suppose to be a green flashing light blinking waiting for ignition signal but i dont even get that! i used a multimeter to test the positve and the ignition to see if maybe it was my wiring but on the positive i get 12V and on the ignition when active i get about 12v and when not active i get 0V. I had this powersupply for about 2 months now and it has been working flawlessly! but yesterday it decided that it wasn't going to work any more....any comments or suggestions?
Did you check the fuse on the M4-Atx board?
My 2007 Yukon XL setup. http://www.mp3car.com/vbulletin/show...64-5000-a.html
yup! all my fuses including the one on the M4 everything is good no broken links
I suppose I will rewire it. Ugh.
So do I wire both pins 1&2 to the black ground of the USB cable?
I did have it wired up correctly (2nd version). The numbers were just labeled different. So now I can't figure out why my PC would talk to the PSU yesterday, but not today.
I just connected Pin 2 to the GND Pin for the USB cable as Pin 1 & 2 are connected together on M4 anyway. You could connect 1 & 2 together to the Gnd of the USB cable, makes no difference.
lol I have no idea why it would talk before, unless you had switched around the cable or something, no idea - as long as it is working now Whats the software like for the M4?
The M4 software is nice...there are a lot of parameters available for change.
Not sure if it was a bug or what...but I just unplugged the USB cable, plugged it into a different port, and it worked again.