Thread: Carnetix P1900 + MacMini + Windows

Originally Posted by brombomb

I am currently stuck on some issues with the power settings of the P1900. I've read the manual but its a little confusing to me. I have a mac mini (w/ the mac pac).

1) Right now I'm pretty sure I have the jumper set to pulse start, but I don't have that wire connect to anything "pulsing". I don't see any options for having it start automatically when the ignition starts. Am I missing something here?

I'm not understanding you. That wire should be connected to the accessory line in your car, and the MacPac should be connected to your computer.

Do you have a diagram of your hookup?

Right now that cable is is not connected to anything. I thought I had to install th wire to a alarm system to make it work with the pulse feature. I thought (for some reason) that there would be a way to start the computer without it connected. I've been personaly turning on the computer each time. When I have the acpi plug connected then I can not turn on the power with the button, so it has been also sitting disconnected.

That explains why it won't start automatically :-)

Pulse start is for some kind of device that you trigger remotely. Like your alarm or using a wireless device on a key fob or something.

Is the yellow wire going into your P1900 connected to the accessory line of the car?

Is your Mac Pac wire connected to the Motherboard of the Mac and plugged into the cable from the P1900?

Originally Posted by Bugbyte

That explains why it won't start automatically :-
Is the yellow wire going into your P1900 connected to the accessory line of the car?

I am pretty sure of this. The pulse wire is green correct? I will double check.

Is your Mac Pac wire connected to the Motherboard of the Mac and plugged into the cable from the P1900?

Yes I have the y cable plugged in. The base of the Y goes into the MoBo, one end into the power button, and one end out the exhaust plug.

Originally Posted by brombomb

I am pretty sure of this. The pulse wire is green correct? I will double check.

According to the manual, the yellow wire is what gets hooked up to the accessory, or ignition line. The blue line going into the power supply is pulse start.

Originally Posted by brombomb

Yes I have the y cable plugged in. The base of the Y goes into the MoBo, one end into the power button, and one end out the exhaust plug.

The plug end that comes out of the Mini needs to be plugged into your Mac Pac.

Sorry to bump an old thread I wanted to let everyone (in case future people have a similiar issue) that I solved it.

My mac pwoer adapter broke (the skinny plug), so I had to order a new mac pac kit. I took the old one out and thats when I noticed the green acpi wire had come diconnected from its tether to the main plug into the P1900. It was actually still in the hole, but simply not connected anymore. Installed the new one and It runs perfect. I also made a small mod:

I inserted new Y adapter into old Y Adapter so now and install a new power button by my brake lever. so now we have this:

Code:

P1900 auto power ----\         
                       ===[A]
power button by brake/


Original Power button ----\
                           ===[Mobo]
[A] ---------------------/

So now if the auto start doesn't work I don't need to reach to the glove box, I just reach down and press the button.