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Had to change tower looking for the layout to connect the front usb wiring to the board , need to know which wires go on the board

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Motherboard usually red-white-green-black

Standard USB Cable Wiring Color Code

5V / Red

D+ / Green

D - / White

Ground / Black

hope this helps

Posted on Mar 31, 2011

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I have an xw9400 board on a normal case,after connecting usb on board with the front panel,board still cant recognize front USB,i need to change wires in the connector to match the board,same thing with...


The front USB header on the XW9400 board has a ground connected to pin #10. The USB standard #10 pin has nothing connected to it, so HP uses it to sense whether a connector is attached to the header.

Apr 01, 2011 | Computers & Internet

1 Answer

How do I connect the front usb wires to my fic c51g motherboard header?


How to Install Front USB by Connecting Front USB Ports to a Motherboard?In order to have front mounted USB you must have 3 things.
  1. A case with USB ports in the front of it.
  2. A motherboard that supports front USB (usually)
  3. Appropriate wiring between the USB port and the motherboard
A case can support front USB in two ways: via a pass thru connection, or via a port to header connection. The former, pass thru connection, is compatible with all motherboards that have USB ports. Pass thru front USB Pass thru front USB works by having the ports on the front of the case connect to either a standard USB cable, or a fairly small rounded cable. The cable goes from the front of the case to a special slot cover with either a hole (for the standard USB cable) or a special connector for the rounded cable. If the pass thru USB had a standard cable, then you would simply plug the standard cable into one of your back USB ports. If it had a rounded cable, then you have a secondary attachment with something that looks like an old style SCSI connector. The attachment plugs into both the slot cover, and the back USB ports. The draw back of pass thru front USB is that you lose the ports in the back.

Many 3rd party devices that add front USB to a system use the pass thru system. A good example is this now discontinued Front IO panel
directron_1721_2292726
Front USB via a Port to Header connection In order to hook up a Port to Header connection you have to make sure that the wires from your port will connect to your motherboard's header. To do this you need to know what header you have, and what type of connector you have on the wires. You'll find information on both below.

Almost all motherboards these days have a USB header. Due to size and cost restraints many motherboards only have 2 USB ports on their back panel, but often they can actually support more then 2 USB ports. They will typically support additional ports via the use of a USB header. A USB header is either a single or double row of header pins on the motherboard that can be used to add additional USB ports to a computer via the use of an appropriate set of header connectors, wires, and a USB port. Each pin on the header corresponds to a wire inside a USB cable. These pins must be clearly marked so that you can hook them up to the wiring correctly. There are 2 common layouts for a USB header.

Intel Standard USB header Layout: (used by over 90% of motherboards)

instusb1a.jpg

Gigabyte Style USB header Layout: (used most commonly on Gigabyte brand motherboards)

instusb2b

Now that we know the types of headers we have to take a moment to understand the USB wiring. Understanding the wires First off: All USB cables have 5 wires. 4 of these wires are actively used. Here's a reference from the official USB standard.

instusb3

On a front mounted USB port you'll have either the first 4 wires connected to properly colored wires (red for power, white/orange d-, green/yellow d+, black for ground) or all five wires attached to the port (same as the former, but one extra black wire). Now where it gets tricky is how to attach each of those wires to corresponding pins on the motherboard.

The wires are "tailed" (attached to a header connector) using any one of a number of different types of connectors. Below you'll find a list of the common ones.

Common USB case header connectors 4 joined pins + 1 extra ground.
usbheader

Compatibility: Compatible with both header arrangements because of the extra ground. May not work with some odd arrangements To hook up carefully match each pin. For the Intel hookup you'll have the extra ground wire not attached to anything. For the Gigabyte hookup you'll have the extra ground hooked to ground pin on the motherboard, and the standard ground jumper will be over the missing pin on the header.

All pins separated

instusb6

Compatibility: Compatible with every header. If all the pins are separated the only real issue is lining up the pins with the appropriate places on your header. It should be compatible with all headers. Just make sure you read the writing on each individual connector. Please check the troubleshooting info at the end of the article for important information on this configuration

Power and Ground separate, d-, d+ joined Lian-Li style

Compatibility: Compatible with all common headers. This sort of arrangement is common to almost all Lian-Li cases. Make sure that you get the wires connected to your header in the proper order. If you find that the port does not function the most common cause is accidental reverse of the d-,d+. Try switching it.

All pins joined Intel style easy connector

usbinst4
making the Connection Once you know what type of header you have, and what type of connector you have on the wiring, you need to connect the two of them. In order to do this, you must first figure out what pin goes with what part of the connector. To do this, you should first consult your motherboard manual. Below you'll find an excerpt from a fairly recent motherboard manual for the Asus A7M266 motherboard. It's typical of a motherboard manual for a board using the Intel standard USB header.

instusb5

The first thing you'll probably notice is that the wiring from your case and the names of the pins might not quite match up name wise. This is a common problem. Motherboard makers and case makers really haven't decided on what to call each pin. Here's a rough list of names.

Power may be called: P, VCC, USB Power, Power, and PUSB. On wiring it's always red. Ground may be called: G, GND, Ground, and GUSB. D- may be called: USB-, USBP-, D-, or just -. D+ may be called: USB+, USBP+, D+, or just +.

To complicate things a bit more you'll probably notice that there's a number before each one. Take a look at the picture above from the USB hookup diagram for the A7M266.

You'll see that Asus decided to number the middle pins. On the first row (starting with pin 1, and marked with a 1) you'll find that they list D- as USBP2-, and D+ as USBP2+. The number 2 tells you a few things. First off: It's the 3rd USB port on the motherboard (they started numbering at 0), second it tells you that that D- and D+ must be used for the same port. Case manufacturers are just as likely to number their ports differently.

Take a look once again at the 4-pin joined picture: usbheader

Notice that you're D-'s have either a 1 or a 2 on them. These also tell you that they are part of the same USB port. (Remember, 1 port has 4 required wires). The numbering on the connector and the numbering on the header doesn't have to match.

To connect everything grab the following connectors: a same number D pair, (D-, D+), 1 power, and one ground. If your power and ground are numbered make sure all 4 are the same number.

Tip: Most cases that use all separated pins will bundle these together for you to make it easier.

Now, take your Power, D-, D+, and Ground and line the connector up with the appropriate 4 header pins on your motherboard. The header pins will be in a row under the Intel style, and in the Gigabyte style it will either be a row of 1 pin, a gap, and then 3 pins, or 3 pins, a gap, and then 1 pin. Press the connector down over the header pin and make sure it's firmly attached. Once you have done this go back and grab another set of connector wires (Power, D-, D+, Ground), and hook up your second front USB port. If your case has more then 2 front USB ports, and your motherboard has more then one front USB headers, then repeat the above as necessary.

Example: If you were hooking up the front USB on a A7M266, on a case with the pictured 4-pin joined connector type then: VCC lines up with USB Power, USBP2- lines up with USB1-, USBP2+ lines up with USB1+, and GND lines up with GND. For port 2, VCC lines up with USB Power, USBP3- lines up with USB2-, USBP3+ lines up with USB2+, and GND lines up with GND.

May 21, 2010 | Computers & Internet

1 Answer

I had to change the motherboard as it failed


Look at the front panel of the computer you will see the connections you have. Should be power, reset, power led, usb etc. These are connected to your current motherboard and most times all the connections will be labeled in the case, on the wire connector ends. IE the end that connects to the motherboard. The only exception to this is the usb ports, and they can be hooked up to new usb connectors on the motherboard. Also note, read i said READ the proper way to connect the usb to the motherboard, this is usually a one shot deal, get it wrong and you kill that usb connector.

Apr 24, 2010 | HP Media Center M370N (DM163A#ABA) PC...

1 Answer

USB wiring on KT4AV MS-6712 Ver 10A motherboard


Open the link provided; http://www.directron.com/installusb.html
You will need to scroll down until you see, Intel Standard USB header Layout. Also see: Common USB case header connectors.
Hope this is what you're looking for.

Cheers'
Mike

Feb 07, 2010 | Intel Motherboard

1 Answer

I bought a computer at a yard sale and the inside if the tower all the wiring to the reset, and usb are not connected i just want to put the wires back in the right place


Hi there.
Get a strong flashlight and a magnifying glass (if you have one). On the motherboard look for the front panel, it should be marked PWR and coloured green, also the plug that connects to it should be marked PWR_SW. On some boards there are no colours but the markings are the same, so a good close look.
Have a look at these pictures for an idea >>>>>>

7b784c6.jpg

104b755.jpg


This is the USB header configuration >>>>>>>

9372657.jpeg


d713768.jpg

good luck

Jun 15, 2009 | AMD Sempron 2800, 2.0 GHz 2800+...

1 Answer

GOT THE INSIDES OF AN AMD ASUS BOARD AND A TOWER DESIGNED TO RUN GIGABYTE INTEL BOARD NEED HELP CAN I SPLIT THE FRONT PANEL WIRES AS AM UN SURE


okay, first of all no tower is designed for a specific mobo,so I imagine that the front panel connections are keyed one way and the mobo jumpers aren't the same.You can do 1 of two things you spend hours trying different connections and if your luckey get the thing to start.You could also go to the perspective websites and get the jumper layouts and match them that way.re-keying is never fun.My suggestion is to get a custom box w/ each and every wire is labled for the jumpers.I bought one last week for my g.f. for 16 bucks.GET A NEW CASE

Feb 01, 2009 | Gigabyte GA-8SIML Motherboard

1 Answer

Wiring off the tower


The 2 grey wires with the 4 pin connectors would be for the USB ports at the front of the tower. They need to be connected to the motherboard usb pin outs. Usually marked on motherboard as "USB1", "USB2" etc. Generally the red wire should be the "power" and goes to pin1 or 2 on the connector. Pin 1 is normally marked by a thick line on the board at that end of the connector, but it's easier to say Pin1 is the opposite end to the single pin on it's own (which isnt used). You really should check the manual for the board to confirm the connections though.

Jan 03, 2009 | ASUS P4P800 SE (890552603657) Motherboard

1 Answer

Upgrading two USB ports on front panel


Hi..
there is no such converter..
those pins should connected to ur mother board only...
once check ur bios settings..

or
use external usb hub..so u can get multiple usb ports that u need...


Jan 01, 2009 | HP Pavilion 761n PC Desktop

2 Answers

Connection of wiring to board


6a98a1a.jpg For the usb connectors you can follow the diagram above:


For the rest of the connectors I need to know the model number of your motherboard

Nov 23, 2008 | Computers & Internet

1 Answer

Pluging in extra usb ports/Mic and headphone jacks from the tower


Answer me this. You're case is an Antec tower? The motherboard is the Asus P4P800 SE ? Is this correct?
If you have you're manual you can see what goes where on the board for front panel connector page. 2-31. (This diagram shows you how to connect the front mic & speaker).
To connect the Antec's front USB ports plug the case USB front connectors onto USB56 & USB78 shown on page. 2-30. Most case wires are already set within their USB connectors & the Antec's front USB connector should fit right on the mother board's pin's. If you need you're user manual, download from Asus by clicking on this link. http://support.asus.com/download/download.aspx?modelname=P4P800%20SE&SLanguage=en-us

Good Luck!
Mike

May 19, 2008 | ASUS P4P800SE Motherboard

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