Motherboard USB and Audio Pin connection help

Hey everyone. So recently I bought a new CPU cooler that required me to take my entire motherboard out from my pc chase to install. So I do that and connect everything back. But I have 1 problem, which is that my USB and audio pins are dead confusing, the names on the pins dont seem to correspond with the names on given on the manual of my motherboard.
The USB front panel extension consists of 2x USB slots and 1x Audio and 1x Mic input. Even the audio and mic inputs are confusing.

Front Panel Audio:

The layout of my motherboards pins can be seen here http://www.mybroadband.co.za/photos/data/2/Front_Panel_Audio.jpg

Those which are connected to the front panel of the audio slots however are:

Green Wire - Spkout R

White Wire - Spkout L

Grey Wire - Spkout L

Blue Wire - Return L

Black Wire - Ground

Peach Wire - Mic In

Yellow Wire - Mic BIAS



The layout of my motherboards USB front panel connections looks like this http://www.mybroadband.co.za/photos/data/2/USB_Front_Panel_Headers.jpg

Those which are connected to the front panel of the USB slots however are:

Red Wire - +VCC

Yellow Wire - -D

Green Wire - +D

Black Wire - Ground

There are 2 sets of cables, one of USB front panel slot on and the other for USB front panel slot 2.

I have sorted out the USB slots but the audio still needs sorting out

The front panel should split up into 1x 10-pin USB connector (pin 9 is blocked) + 1x 10-pin audio connector (pin 8 is blocked), so you shouldn't be able to accidentally plug in the USB connector into the audio header and vice versa.
These connectors won't have every pin named. They'll only have a label on it saying like AC'97 for the audio connector and perhaps USB for the USB connector.

Just don't make the same mistake I did, by plugging in the USB connector into the Firewire (IEEE 1394) header!

The loose single pin connectors are for the case switches and LED's, such as power switch, reset switch, HDD LED, power LED and case speaker.

ControlAltDelete said:

Green Wire - Spkout R

White Wire - Spkout L

Grey Wire - Spkout L

Blue Wire - Return L

Click to expand...

Not sure, some mistake above: white and grey wire (the same marking?)

The rest: follow AC97 layout:

Black Wire - Ground <pin2>

Peach Wire - Mic In <pin1>

Yellow Wire - Mic BIAS <pin3>

For the USB, going by your picture, pins 1, 3, 5, 7, 9 (pin 9 not present) are from right to left top row and should be red yellow green black from right to left. The second cable can go below it, right to left, 2, 4, 6, 8, (10) in that order are also red, yellow, green, black and pin 10 unused.

So red, yellow, green, black and then the missing pin = one cable done. And then red, yellow, green, black and then the unused pin below or above the 'missing pin' = done.

There are pictures if you google it but that order is right according to your picture.

Edit: changed 'white' to 'yellow'.

sajunky said:

Not sure, some mistake above: white and grey wire (the same marking?)

The rest: follow AC97 layout:

Black Wire - Ground <pin2>

Peach Wire - Mic In <pin1>

Yellow Wire - Mic BIAS <pin3>

Click to expand...

Yes, the grey is the same. When I looked at that I was like WTF?

ControlAltDelete said:

Yes, the grey is the same.

Click to expand...

Not sure. It looks like two of them are return wires with incorrect marking. They are used to switch off speakers connected to the rear when front plug is in.

In the first step connect as follows:
- green wire to 5
- white to 9

Check if you hear both channels on the front panel, if not, connect grey wire to 9.

Once this step is successful, you need to answer one question: What happened in the past if you used front panel?
1. sound was cut off from the rear panel, or
2. sound was not cut off

If answer is 1, then disconnect front plug and try the remaining wires to get sound on the rear panel. You can't make damages doing this (while with USB connection you could!)

If answer is 2, then your job is completed

Edit: Normally in AC97 pin 6 is for return right channel and pin 10 for return left channel. Your new mobo might have logic detecting load on front pannel to switch off rear panel, then only step one is required.