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Power Supply AUX connection

U

UnseenClass

Gawd
Joined
Dec 14, 2002
Messages
539
What on earth is this thing used for? I have never had to use it before; I know that they keep putting them on power supplies. But I wanna know, what are they typically connected to? I"ve been into computers for a while and have yet to find this out :D
 
ok, I think you mean that extra plug that is square shaped with 4 additional connects - well that was added to the power supply design due to the high demand for power from the Intel processors - the standard atx motherboard connector could not supply enough juice (or so it was thought.) So, to ensure that the proper amount of power was supplied this connector was created to attach to a second location on the motherboard. Strangely enough many of the amd compatible boards do not use this addon plug.
Many high end overclock boards for amd do use it so to ensure proper power levels at all times.
So, next time an intel using buddy of your has his/her case open - look for the connector in use near the standard atx connect.
 
no i think he means the longish narrow one with about 8 pins in it, thats a different shape to a normal molex and not on a chain with the molex connectors.
id like to know what this is for too . . . .
 
Originally posted by egon_dude
no i think he means the longish narrow one with about 8 pins in it, thats a different shape to a normal molex and not on a chain with the molex connectors.
id like to know what this is for too . . . .
Click to expand...

Yeah.. I've always wondered what that was.

Edit: I just looked at mine, it's a 6 pin connector...
 
It's basically the old version of the 4pin ATX12V line. Provides addtional 3.3v and 5v lines if the motherboard require 18A+ on the 3.3v or 30A+ on the 5v. ATX v2.2 no longer recommends it to motherboard makers if their design is ATX12V v2.0(or higher) compliant.
 
so your saying that its useless and i will never run into troubles if i just chop it off?
 
ok that was for a server spec - but I do not believe present server boards need that additional plug anymore (most I ahve seen for low end use the 4 pin square connect I talked about earlier -
No you can hack it off if you want to with no reprocussions (unless you botch the cutting...)
 
Yep, you can hack it off. The new ATX 2.2 specs remove it, so you shouldn't have any worries. I would suggest, however, that you insulate the ends because the could short out if you don't.
 
wow...the mystery is solved! Thanks guys:D

I was too afraid to hack it off because I thought I might need it somewhere down the line
 
Im confused as to which connector you are talking about... NOT the square 4 pin thats also on an NF7s 2.0?
 
Like they said, it's the little narrow, 6 pin long connector that noone ever has need of :) It's that plug that you always look at and like WTF is that for and end up shoving it out of the way.
 
Originally posted by Fetti
Like they said, it's the little narrow, 6 pin long connector that noone ever has need of :) It's that plug that you always look at and like WTF is that for and end up shoving it out of the way.
Click to expand...

exactly right
 
If it has the proper lines in it (can't look as mine is tucked away under the mobo tray), then hack the plug off, get some crimp-on Molex pins and a 4-pin connector and have a dedicated line for your Radeon or something. Or, use it to create a dedicated line for LED's, TEC's, etc. Get creative with it.

Or, better yet, hack it off, insulate it, and clear out some space in these cramped-assed towers.
 
:rolleyes: The whole dedicated line concept still gets me. Sure, there is a possibility of slight drops in voltage over long lines with various components attached, but in the end they all are still getting power from the same source inside the PSU. Anyways, the AUX connector does not have 12v lines on it, only 5v and 3.3v, so that wouldn't work anyway. I use it in one of my mods for LED power, but otherwise it's pretty useless, hence the removal from the specs.
 
The whole dedicated line concept still gets me. Sure, there is a possibility of slight drops in voltage over long lines with various components attached, but in the end they all are still getting power from the same source inside the PSU. Anyways, the AUX connector does not have 12v lines on it, only 5v and 3.3v, so that wouldn't work anyway. I use it in one of my mods for LED power, but otherwise it's pretty useless, hence the removal from the specs.
Click to expand...

Yeah, I don't understand why they put them in there if no one ever uses them anymore. But if that's the case I'll use it for some LED modding that I plan on doing.
 
Would anyone possibly have a pinout for that vestigial connector? I wouldnt mind chopping that connector off for light modding.:D
 
Yea, it hasn't really been used since the P2 days... I don't know why almost all PSU's still have it..

That's one of the reasons I got my PSU, it doesn't have it.. I just have the 20 pin connector, the 4 pin +12, 7 standard molex connectors, 1 floppy, and 2 SATA connectors (real ones, with the proper rails for SATA)...
 
I actually used mine to swipe 3.3 V for my Temp sensor. without hacking into the ATX block. so it is somewhat usefull and for testing LEDs and stuff (on my spare PSU)
 
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