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power question....can i power both a 800 watt amp and a 250 watt power supply without worry?

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Old 11-11-2003, 05:35 PM
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Default power question....can i power both a 800 watt amp and a 250 watt power supply without worry?

Right now I have a MTX Thunder 405 (800 watts) sitting in my closet waiting to be installed. I'm planning on putting in a 150 watt (though I may go 250, but chances are I'll only need 150) power supply to power up a mini-itx computer.

I'm worried that the stock battery/alternator won't be sufficient. Should I trade someone for a 500 watt (just a guess) amp to be on the safe side? Or should I be ok?

I don't think neither the amp nor the powersupply (especially not the 250 watt) will ever be run near their power limit, so if I don't run them full blast would that make it safer in terms of battery drain/alternator use?
Old 11-11-2003, 05:38 PM
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Default You should be good...you're talking about a max draw of around 1000w...you won't ever sustain for...

a long enough time to cause significant electrical problems with your car. More than likely you'll use around a 1/3 of it continuously. You may have trouble with dimming though. I'm running a compariable setup with JL equipment (500/1 and a 300/4) with no problems whatsoever... hope that helps...

oh yeah...and MAKE SURE you're running a sufficient gauge of wire for both power and ground...
Old 11-11-2003, 08:50 PM
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Default what are specs for that p.c.? where is mount?...

I don't mean to answer a question with a question.
I think you should do fine. If anything buy a cap for the amp. I don't think its needed though
where are you putting the monitor at?
Good luck!
Old 11-11-2003, 09:17 PM
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Default mini-itx power requirements?

do you really need 150w for the mini-itx board? The VIA Epia certainly should be able to get away with, say, 60W or less of DC power. If you're just powering a board and a hard drive, I'd imagine much less than that.
Old 11-12-2003, 08:11 PM
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Default Are you using 0/1 gauge or 4 gauge?

I am considering going the 500/1 and 300/4 route myself and I will have a 1 farad cap in as well.

I know the 500/1 requires 4 gauge power wire. Can I feed 800 watts with 4 gauge from the battery?

TIA,
Old 11-12-2003, 09:10 PM
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Default It's the VIA M10000, 1gighertz mb, 256 ram, and right now it only has a 512meg solid state hd

That is until I finish everything else and through a bigger harddrive in there for media storage.... and I'd like to mount the pc up front, but it'll probably be going in the trunk. I picked up a 7" touchscreen vga lcd that I'll be putting in place of the radio after I move the climate control down to where the ashtray is. It's going to be a similar setup to the famous one on the B5 A4 forum, he beat me to it.<ul><li><a href="http://www.viavpsd.com/product/epia_m_spec.jsp?motherboardId=81">Link to VIA's website for the motherboard</a></li></ul>
Old 11-12-2003, 09:21 PM
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Default I've seen plenty of people easily get away with the 60W sproggy for the board alone...

But I'm going to fully load it. DVD Drive, GPS, Radio/TV, Wi-Fi, and possibly a sound card. I haven't done the math yet but I could probably get by with the rail mod doubling the 60W "sproggy" to 120W especially because I won't be using all of that at once...

but Opus has a nice 150W power supply that's designed perfectly for what I need, although I heard it's a little expensive. I'm still looking for alternatives.
Old 11-13-2003, 11:31 AM
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Default shoot on over to mp3car.com

they will have all your answers... of course, you've probably already been there.
Old 11-13-2003, 07:21 PM
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Default At mp3car.com...

I saw they have a dc-dc 12v auto shutdown thing.
Will that work with a laptop?
Do you need a dc-dc power supply? how about setup of p.c with a power inverter and regular atx powersupply, would this product at mp3car.com work with my dream setup?
I would ask them but they want me to register, that is b.s. for one question!
Thanks
Old 11-13-2003, 08:51 PM
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Default

Yea, I haven't been in a couple months but I've been there... thanks


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