Question about ASUS Intel 815E Chipset TUSL2 (TUSL2 SWA) Motherboard

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Trying to set up front usb ports on asus p4p800se

There are two grey wires coming from front on case that each split into 4 conectors. they read grnd,2=D, 2-D, and VCC. wher are these 1 pin connectors attached to the motherboard?

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Find usb pin in the boad " USB1 & USB 2" You can see five pins in the board composed of two lines. connect the cable in the line composed of four pins. from left. VCC, Data-2 , Data+2, grnd2. After connecting try a Usb mouse if the USB mouse function well then connection is correct.

Posted on Jan 07, 2008



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I don't know how to plug in the wires for the ASUS a8n sli deluxe motherboard

Here is the manual for your motherboard (since describing a diagram probably isn't very useful...)

You want to look at pages 27-35, they describe what you need to plug into the motherboard. Basically make sure you have connected:

1) 24-pin power cable (from power supply)
2) 4-pin power cable (for CPU from power supply)
3) Any case fans with 3/4 pin connectors.
3) hard drives (SATA or IDE)
4) USB front panel ports
5) Audio front panel ports
6) Case plugs (power LED, hdd LED, power switch, and reset switch).

Apr 19, 2011 | ASUS A8N-SLI Deluxe Motherboard

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Usb ports quit working on asus motherboard asus p4p800se

check all cables are securely inserted. If nothing take it to a local repair shop and have them take a look..

Jun 06, 2010 | ASUS P4P800 SE (890552603657) Motherboard

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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
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)


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


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.


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.

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


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

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.


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 have 4 usb poorts on my barebone. two of them

If these are case front/top or other panel ports, verify that the ports are connected correctly.

if ports are configured correctly, remove all usb drivers via device manager. then reinstall them. if the problem still occurs you either have corrupt usb drivers (probably not since 2 ports work) or the USB ports were damaged in installation or because of usage.

sometimes the ports will not clear their settings, try the object you are plugging into the 2 non-workign ones to another port hen try something you never plugged into the 2 non-working. if you still get an error, its a driver or damage issues

Feb 11, 2010 | ASUS P1-P5945G Motherboard

1 Answer

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,

Oct 30, 2009 | ASUS P4S8X-X Motherboard

1 Answer

Case front firewire port to motherboard connection???

Yeh dont plug it into a USB header...

yes if you buy a PCI firewire card they will have 1 or 2 headers on the card so you can fit your front Firewire port to it...
[Belkin cards 99% of the time have headers on the card]

Let me know...

Jan 22, 2009 | ASUS P4S533-VM (P4S533-VM/L) Motherboard

1 Answer

Front headphoes and front usb ports

maybe the wire connection of your front panel audio is not connected to your motherboard, try to have it checked by a pc

Aug 09, 2008 | ASUS Vento 3600 Dream Extreme Gaming ATX...

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.

Good Luck!

May 19, 2008 | ASUS P4P800SE Motherboard

1 Answer

Asus k8v se data-2 data+2 ground and vcc wires

You can download the manual from this location


Go to page 1-21 and see the extra USB connectors. If you are talking about your wires coming out from your case and used for a USB port like the one in the front, you should connect them to any of the 4 available USB channel following the polarity. For example connect your Vcc to USB+5V, groung to GND, data-2 to USB_P8- and data+2 to USB_P8+



Let me know if you need more help

Oct 23, 2007 | ASUS K8V-SE Motherboard (MBASK8VSE)

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