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Front usb s don't work

How do I connect front usb s. 2 pairs of wires colouredred, white, green, black

which lead to which pin?

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  • dez72 Mar 02, 2009

    Front usb ports don't work on Asus P5P800VM



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Need to know :
motherboard model
case name and model

Posted on Nov 18, 2007


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Go to napa and they have the connectors that plug in to your existing wire connection, I don't know if they have the one for yours, but it won't hurt to check, you don't have to cut or splice the wireing with there trailer connectors, plug it in and done.

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Hi there, first check the image below. You've got USB 3 and 4, and AUDIO section. For the USB, pins 1 and 2 represent front panel USB power on both 3 and 4. As for AUDIO connection, pin 1 is Front Panel Microphone input signal, pin 3 is Microphone Power, pins 5 and 6 are for Right Channel audio signal to Front Panel and pins 9 and 10 are for Left Channel audio signal to Front Panel.

You can find more details in the motherboard's manual, page 23 and 24.


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USB56 Front USB hook-up to case

there is no chance to join differport to join in computer asmbaling. we should look port and size and conneting corner shape. we can asambling any port reading in bords smallptints and casing wire there is aprint in casing wire /reset/ p.led/hddled/ usb u can get front usb print in mother bord,

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3-pair version of (red/green, black/yellow, white/blue). But the first two pairs are not twisted
So it becomes green/red, yellow/black, & white-black/blue. G1/ R2 /3Y /4B /5*Blk/6Blue (this is what you physically see on the other RJ11 connections since this is a data connection and not a phone connection it should be a straight-through instead of cross-over connection.
These RJ 11 PINOUT assignments may be incorrect because they apply to a color camera instead of B/W

6 12V DC
Back of Camera
Clip up, contacts down
RJ11-e starts off like a RJ45 Stranded Patch Cable.
The color code used in stranded patch cables is different from solid-conductor cables. For NorTel Digital Patch Cable (DPC), the coding is; Pair 1: Green & RedPair 2: Yellow & BlackPair 3: Blue & *Orange White\Black
*In Pair 3 the color coding is Blue & Black instead of Blue & Orange and the pair is twisted so that the Blue wire is the 6th pin instead of the 5th pin.

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Posiflex cash drawer CR 3100 wiring for 6 pin phone plug

If you have the following pairs of wiring:

Blue/White - White Blue
Orange/White - White/Orange
Green/White - White/Green

Then the pairing starts as follows:

Pin 3 - Blue/White
Pin 4 - White/Blue
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Pin 5 - Orange/White
Pin 1 - Green/White
Pin 6 - White/Green

If your wiring has different colors, please let me know and I get you the correct wiring plan.


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Ethernet cable

568-B Wiring
Pair Wires RJ-45 pins
1-White/Blue White/Blue 5
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Orange White 2
3-White/Green White/Green 3
Green/White 6
4-White/Brown White/Brown 7
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568-A Wiring
1-White/Blue White/Blue 5
Blue/White 4
2-White/Green White/Green 1
Green/White 2
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Orange/White 6
4-White/Brown White/Brown 7
Brown/White 8
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Front usb connections

I finally found a solution, on a dead page in google cache only:
The solution was posted by JontyBonkers.

The pins go like this:
1 2 3 4 5
_ 6 7 _ 8

1 = ground
2 = ground
3 = D1-
4 = ground
5 = D1+
6 = D2-
7 = D2+
8 = +5V

It seems that the case for those Packard-Bells had a small circuit board that divided the 5V line to both sockets.

D- are usually white, D+ - green, 5V - red, ground - black

Jun 11, 2008 | Packard Bell Computers & Internet

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Usb not working

front USB ports are an extension of a header on the mainboard, it connects via a bunch on individual pins, if any of these pins are wrong the front USB will not work, but usually this would lock up all USB and the ones on the back will not work either, i would suggest the front USB panel was either not connected at all, or it was conected wrong, usual USB header colors of wores is BLACK, GREEN, WHITE, RED, note all mainboards are different, so the black could start from either side of the header, b sure to refer to your motherboards manual for exact pin loactions on the header

Dec 05, 2007 | Gigabyte GA-945GM-S2 (0818313003065)...

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Havimg prob with the 2 usb ports located in front

Hi manky, Normally front USB ports have a pair of 4 wire cable with connectors marked red wire is vcc; white wire is -D; green wire is +D; and black wire is gnd. The motherboard would normally have two pairs of dual pin connectors that would be sitting side by side or in-line with uneven pins - 4 and 5 pins; then another 4 and 5 pins. Please refer to the attached simple diagram for your connection. For some reason I couldn't get hold of a manual from the Gigabyte site of your particular model GA-81KHXT. Nonetheless hopes this works for you. Pls post again how things turn up. Good luck and kind regards.

Jun 01, 2007 | Intel Motherboard

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