Everything You need to know about your M4 ATX - Page 6

moelsaied88 · 01-01-2009, 06:31 PM

hello, i was hoping someone could help me out by explaining to me how to hook the M4 up so that it turns on either when i press the unlock button on my car remote or when the ignition is turned on. I tested my complete system with all the dip switches up in the off position where it acts as a normal psu and a normal power switch connected to the mobo. Ive been over the manual and it doesnt really explain how to hook up the ignition. I understand that the pins for the switch get connected to the mobo, but what sends the signal to the M4 to turn it on? thanks in advance i really appreciate any help given.

WuNgUn · 01-01-2009, 08:40 PM

In the manual, the drawing on page 2, where it's indicating the middle terminal with "IGNITION"...well, wire in your ignition or accessory to that...
This, of course, is what turn it on.

Set dip1 on, the rest off...

Forget about trying to switch it on with the 'unlock' funtion...
Most people use an aux output on most remotes/alarms to power it up...

moelsaied88 · 01-01-2009, 08:44 PM

from my understanding of electronics, you need 2 points for a switch to work. Your telling me that i just take a wire from the ignition port and touch it to anything and itll work? since im putting the computer in my trunk, is there anything in the rear of hte c ar you can think of that i can link this to? how about if i want the computer to turn off when i turn the car off? i was going to run the + lead to the battery and ground the - lead anywhere. sorry but this is my first carpc and first time messing with an auto psu. the M4 manual leaves alot to be desired... and what do you mean by an aux output on the alarm? i am using my cars stock alarm system.

WuNgUn · 01-01-2009, 09:08 PM

Quote: Originally Posted by moelsaied88

from my understanding of electronics, you need 2 points for a switch to work. Your telling me that i just take a wire from the ignition port and touch it to anything and itll work? since im putting the computer in my trunk, is there anything in the rear of hte c ar you can think of that i can link this to? how about if i want the computer to turn off when i turn the car off? i was going to run the + lead to the battery and ground the - lead anywhere. sorry but this is my first carpc and first time messing with an auto psu. the M4 manual leaves alot to be desired... and what do you mean by an aux output on the alarm? i am using my cars stock alarm system.

You need a constant ground and constant +
This is what the other terminals are for.
The middle 'ignition' terminal can't be just touched anywhere. I think your confused...
You MUST run a wire from the cars ACC at the ignition key switch to this center terminal on the M4.
When the M4 sense as current (i.e. when the car is on!) it switches on the PSU...
When you turn the car off, it senses this too, thru the IGN terminal, and shuts down your PC...

Read thru the manual a few more times...

Bugger · 01-02-2009, 02:19 AM

Quote:

from my understanding of electronics, you need 2 points for a switch to work.

The constant -ve is the second point for the switch... the IGN terminal is the +ve point for the switch... hope that helps.

ricbw2 · 01-17-2009, 08:38 PM

I would like to thank you for this information it will come in useful soon enough. I am going to update the firmware from 1.0 to the latest, looking at the link below, it has diagrams almost similar to the one provided by Fox Mulder.

http://www.obddiag.net/prog2455.html#ICSP

This look easy, and the stripboard should be easy enough for me, its been a while since doing this.

Is anyone having problems with waking the computer when ignition is switched back on, as mine is a configuration problem with xp (vista too is the same when I tried it) I think and not the M4. It doesn't go to standby but just turns it off. When the ignition is switched back on again it reboots from hard off, i guess.

Cheers

RedGTiVR6 · 01-18-2009, 04:40 PM

I'm running the latest firmware and have trouble with standby with my DG45FC. Haven't yet tried another PSU though, so I cannot attest to it being the PSU or the mobo.

It has the same behavior that you describe though.

ricbw2 · 01-21-2009, 05:12 PM

I did manage to solve this with carefully choosing a new install of XP (I couldn't solve the Vista problem and I don't really want Vista anyway) with fewer startup programs and freshly installed programs, its now hibernating and sleeping fully except that it will not wake up from a wireless USB keyboard + mouse (Logitech dinovo). Even with the option enabled in bios.

Switching the ignition on alone will not wake it but I wired in a push to make switch, this has solved that. It wakes.

WuNgUn · 01-21-2009, 05:57 PM

Isn't the DiNovo BT??

Fox_Mulder · 01-21-2009, 07:17 PM

The dinovo is bluetooth or you can use the usb dongle that comes with it.
You should try setting your bios to "Power on after Power Fail" and that will should get around your issue of having to have a switch to start the computer (even though your M4 is supposed to do this).

WuNgUn · 01-22-2009, 08:44 AM

Quote: Originally Posted by Fox_Mulder

The dinovo is bluetooth or you can use the usb dongle that comes with it.
You should try setting your bios to "Power on after Power Fail" and that will should get around your issue of having to have a switch to start the computer (even though your M4 is supposed to do this).

lol
The USB dongle is a Blue Tooth transeiver...

Fox_Mulder · 01-23-2009, 09:58 AM

Yep it is, but it's permanently locked to always pair with the dinovo, don't know if there is a hack to get it to operate like a normal bluetooth radio.

WuNgUn · 01-23-2009, 10:12 PM

Quote: Originally Posted by Fox_Mulder

Yep it is, but it's permanently locked to always pair with the dinovo, don't know if there is a hack to get it to operate like a normal bluetooth radio.

Ahhhh....

bemenaker · 01-29-2009, 08:50 PM

edited posting because it was written to hastily.

edit:

I followed this exactly, when I did, the capacitor at the connector instantly burned up. I can not get my M4 to turn on at all.

RedGTiVR6 · 01-29-2009, 09:41 PM

Funny - it worked fine for me. You sure you didn't hook something up wrong?

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