Computer Reboots

**Bama5150** · 04-12-2004, 04:13 PM

I have searched the threads to no avail. I just moved the car computer out of the glovebox into its own case in the trunk. I ran 12 gage wire. Now, whenever I turn on the headlights, or turn the ac up, or turn signal (etc) the computer reboots. Sometimes my XM radio will also go off. Anyone have any ideas? Thanks!

**sfay93** · 04-12-2004, 04:17 PM

8ga or better wire.

**antimatter** · 04-12-2004, 04:48 PM

10g is good. That is what the + and - leads on the opus supplied cables are.

Anything more is just overkill.

**shakes** · 04-12-2004, 04:53 PM

where did you ground the PC? if you ran your ground all the way back from the front to the back ... undo that and regrdound to somewhere in the trunk. ground cables should be short.

next you could hook up a multimeter and monitor the voltage when you turn on the AC ... see if there's a dip. You may have a failing, or overloaded alternator.

a tank circtuit will probably stop the rebooting ... but sounds like there's a larger issue.

**falconey** · 04-12-2004, 05:53 PM

Or your alternator could be going bad. Change the wire and if it's still doing this then it's your alty. As you know this is a situation where you don't have enough power coming from the battery to the computer which could be the wiring or the altenator.

**Bama5150** · 04-12-2004, 06:23 PM

Well, I came home and then tried to start the car again, and the car wouldn't start. A battery cable (-) had come loose. I haven't tested it out, but I would think that would most likely be the cause. Btw shakes, I did ground the computer to a screw inside the trunk. However, my screen would flicker, so i ran the a cable from the screen ground back to the trunk to keep the ground points common.

**Enforcer** · 04-12-2004, 06:36 PM

Originally Posted by Bama5150

I ran 12 gage

12 gauge is only good for shotguns

**falconey** · 04-12-2004, 09:25 PM

he still shouldn't be having reboots from using 12 guage. I could be wrong though.

**Zip-Lock** · 04-12-2004, 11:07 PM

Which power supply are you using?

**Bama5150** · 04-13-2004, 10:19 PM

I am currently using the pw-70a with the ITPS (waiting and waiting for my Opus 150w) The lose negative battery cable was the culprit. I tightened it up and have had no problems at all. Everything is working great.
1 question is concerning the 12 gauge wire. It is easily the biggest wire in the whole equation. Thicker than any wire on the power supply, so why do some of you think its an issue?
Thanks