Carputer wont power up once Amp is installed

**Legrath** · 12-28-2004, 12:48 PM

Hi,

I've had my Carputer installed with a Opus 90w PSU (full spec in sig below) for about a week now, everything running fine, but with no sound as Amp was not yet installed.

So today I install the 1400watt Amp. I wire it into the 8 Gauge Power wire and Earth that I have already installed for the Carputer. Now the Amp powers up fine, but the Carputer will no longer Power up. No lights nothing. I disconnect the Amp and the Carputer works fine again !?

Both the Carputer and Amp are running of the same Power and Earth Cables. 8 gauge cable.

Im confused

Is the Power cable to weak for both the Amp and Carputer, is the Amp draining all the power ?

**R@b** · 12-29-2004, 08:09 AM

Buy another set of cables and a fuse and connect the carpc seperatly.

Your cables are probably too thin and can't power on both.

**ea972271** · 12-29-2004, 08:27 AM

How are you splitting the power wire? Distrubution block? or are you just daisy chaining the components?

**Zac** · 12-31-2004, 08:20 PM

1400watts and a CarPC on an 8ga. wire? ......Run another 4ga line seperatly for the amp and you should be fine. "1400w 4 channel amp" eh? 350 watts x 4? No name brand listed either?

**Qnzfinest** · 06-20-2005, 07:07 PM

8ga wire is too weak to run something as power hungry as an amp and a computer. best bet would be to run fused 4ga wire from battery to trunk, install a fused 4ga-dual 8ga wire distribution block and run to each device respectively. Then take a 4ga ground wire and run to a ground distribution block and wire to the amp and puter. Most Ground Distribution blocks come with a 1 4ga to 4 8ga distribution. This should solve your problem. Also make sure that you main fuse on the 4ga wire is strong enough not to blow when u have the amp and the computer on

**david69leonard** · 03-19-2007, 10:23 AM

Originally Posted by Zac

1400watts and a CarPC on an 8ga. wire? ......Run another 4ga line seperatly for the amp and you should be fine. "1400w 4 channel amp" eh? 350 watts x 4? No name brand listed either?

**ajscomp372** · 03-20-2007, 11:16 PM

Another reason for having the thicker wires is voltage drop. The thinner the wires, the greater the drop in voltage on the wire. If the wires are too thin and/or too long, the voltage could drop enough to trip the low-battery settings of your amp and computer, or at least cause some sort of small-scale electronics havoc.