Asus AT3N7A-I PSU Help

**MGSteve** · 10-09-2009, 10:16 AM

Hi Guys,

I'm about to build my first CarPC and I'm a bit confused about which PSU I need for it.

It shouldn't be too power hungry, its just the Mobo and a SSD that it needs to power. But it needs a 4pin 12v supply for the CPU in addition to the ATX supply, none of the PSUs I've seen have this second output.

I think I'd go for the 60w CarNetix PSU, but stuck about the wiring.

That said, I have got an 80w PicoPSU that I bought for an earlier attempt, but it doesn't have the SATA connection I need. (Although could use an adapter) - but still doesn't have the secondary 12v input.

Any help would be appreciated

**DarquePervert** · 10-09-2009, 10:39 AM

First off, start peusing the FAQs: http://www.mp3car.com/vbulletin/advfaq.php

That board is an ATX-compliant board, so you really need an ATX PSU.
M-series, Opus or DSATX are your options. It all depends on the features you want, your budget and how much space you have available.

**malcom2073** · 10-09-2009, 10:43 AM

Originally Posted by DarquePervert

First off, start peusing the FAQs:

perusing* :P

But seriously, what he said. I personally have a m2, and it's worked great for me. Definitely get yourself a PSU with a shutdown controller built in.

**MGSteve** · 10-09-2009, 11:38 AM

The m2 still doesn't have the 4 Pin CPU power connector though?

4 Pin, top right between the caps.

Ah, I notice the DSATX has, that's spot on. - Although I don't need 220w! Don't they do a lower power one?

The FAQ doesn't mention the 4 pin CPU power connectors at all btw...

Update - do'h, just noticed the M2 does have the 12v CPU connector as well. Cheers for the help

I presume with a M2, you don't need a power regulator like a P1290 then? You just wire the M2 into the car?

**soundman98** · 10-09-2009, 04:43 PM

you could use something like this for the 4 pin connector: http://store.mp3car.com/4_Pin_P4_Mol..._p/cbl-056.htm

all atx compliant dc-dc power supplies just need to be connected to the battery-- they will regulate the voltage to the motherboard.

**vull** · 02-22-2010, 08:17 PM

you need this for ATX power connetor (the board comes with only 2 sata cables):
http://linitx.com/viewproduct.php?prodid=10479

but will this board work with pico120 or 150w psu?
http://www.kustompcs.co.uk/acatalog/info_1798.html
http://www.kustompcs.co.uk/acatalog/info_1667.html
(150w is even cheaper...)

m2-atx is bigger and becaoming a rare find... is more expensive too...

**brianteel** · 02-22-2010, 10:46 PM

I am using http://www.mo-co-so.com/PicoPSU150-p/mcs-atx-p150.htm with my board only so that i can us it inside also then i have it connected to Carnetix P2140 for power. it is plug and play and works great. my setup is pretty much what you have