Question about EPoX (EP8K3AE) Motherboard

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Usb connecting pins

There are 10 pins to connect two usb's
USB cable has only four wires
Which ones are left out?

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  • Anonymous Nov 15, 2008

    i have the same probleme

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  • 397 Answers

Pins 9 and 10 are not connected, see this site for details.
http://pinouts.ru/Slots/USB_pinout.shtml

Posted on Jul 25, 2008

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FINDING WHERE TO PLUG IN THE usb CABLE CONNECTIONS


looking at your Mobo with the keyboard connections on the left side you will see a series of pins at the bottom. They will be labeled. The ones labeled USB will be the ones you want to connect to and just make sure that if you have a 9 pin adapter that you line it up (one corner is filled in and if installed incorrectly will damage the unit).

Feb 19, 2014 | Motherboards

1 Answer

Do you have any user manual for front panel usb


http://www.msi.com/product/mb/PM8M-V.html

(MSI PM8M-V H, is version 2.0 )

Hover your mouse cursor on the Download tab.
(Overview / Specification / Download / Support / etc.)

In the drop down list, click on - Manual
Under the subheading - Download, click on the blue -
M7104v1.0.zip

[ This is a Zip file. A Zip file is a file that is compressed, to send easier. The above manual is for the M7104v1.0
It will work for the version 2.0 also.

You need a program to 'Unzip' it. (Decompress)
If WinZip is not working on your computer, go to 7-Zip, and download for free.
If you need guidance in downloading, and unzipping, post back in a Comment ]

There are two USB headers on the motherboard for the Front Panel,
JUSB1 and JUSB2. (Junction USB 1 and Junction USB 2)

Looking along the bottom of the motherboard, FROM the Right going towards the Left;

JFP1 header; (Front Panel main wires)
Header with 4 pins on the Top row, and 5 pins on the Bottom row.

JFP2 header; (Dual color Power On LED, and Speaker)
Header with 4 pins on the Top row, {Speaker}, and 3 pins on the Bottom row.

JUSB2 header.

JUSB1 header.

EACH USB header will support TWO USB ports in the Front Panel.
JUSB1 supports two,
JUSB2 supports two.

For each USB header there are 5 pins across the Top, 4 pins across the Bottom.
The pins are numbered EVEN across the Top, and ODD across the Bottom.

Starting from the LEFT side going across to the RIGHT side;
on the TOP row for JUSB2 and JUSB1;
Pins 2, 4, 6, 8 and 10.

Starting from the LEFT side going across to the RIGHT side;
on the BOTTOM row for JUSB1 and JUSB2;
Pins 1, 3, 5, and 7. There is NO pin 9.

A) Pin 2 is VCC
B) Pin 4 is USB1-
C) Pin 6 is USB1+
D) Pin 8 is Ground

E) Pin 10 is USBOC

Pin 10 is N/C -> Not Connected.
It is there, and Pin 9 is not there, to key which way a connector can go on. Only ONE way.

F) Pin 1 is VCC
G) Pin 3 is USB0-
H) Pin 5 is USB0+
I) Pin 7 is Ground

There is NO pin 9.

(The USB technology used is USB 2.0)

http://pinouts.ru/Slots/USB_pinout.shtml

Let's read together,
Under - USB pinout signals;

"USB is a serial bus. It uses 4 shielded wires: two for power (+5v & GND) and two for differential data signals (labeled as D+ and D- in pinout). NRZI (Non Return to Zero Invert) encoding scheme used to send data with a sync field to synchronise the host, and receiver clocks. In USB data cable Data+ and Data- signals are transmitted on a twisted pair. No termination needed. Half-duplex differential signaling helps to combat the effects of electromagnetic noise on longer lines. Contrary to popular belief, D+ and D- operate together; they are not separate simplex connections."

See the USB examples in the link above, where it labels the contact pins?
The MALE connectors are shown on the Left side.
The FEMALE connectors are shown on the Right side.

Your USB ports will be FEMALE, on the Front Panel.
They are also the A style. USB A style. The Top example to the Right.

Just noting the following in case for some reason, the wires coming from those contact pins in the female USB connector, are not color coded correctly;

Even after you have the wires sorted out, as to which contact pins they go to, DOUBLE-check again. Do NOT just go by the color code of the wires.
Why?

You do NOT want to accidentally connect the +5 Volts (VCC), to the Ground!

Explaining further;
You connect the VCC wire, (Red), of the USB port in the Front Panel, to the Ground pin on the USB header on the motherboard.

(Which means the Ground wire of the USB port, (Black), will probably also be connected to the VCC pin, on the USB header of the motherboard)

Zzzzzzap! There goes your front USB ports. Both USB front panel headers on the motherboard, will be DONE!

Make sure!

Going on;
1) VCC or Vcc, goes back relating to Transistor technology.
Just think of it as the Positive, or power wire.
It is.
It is 5 Volts DC.

2) GND is Ground. It's a DC circuit, and you have a Positive, and a Negative, or Ground.

3) USB1-
That is -> Data-

USB0 is for one USB port in the Front Panel.
USB1 is for another USB port in the Front Panel.

[ Each USB header on the motherboard can be connected, to TWO USB ports on the Front Panel.
Therefore for the two JUSB1 and JUSB2, you can connect Four USB ports in the Front Panel ]

Data- on one USB port in the Front Panel, goes to USB0-

Data- on the other USB port in the Front Panel, goes to USB1-

4) Data+
Same thing.
Data+ on one of the USB ports in the Front Panel, goes to USB0+
Data+ on the other USB port in the Front Panel, goes to USB1+

EACH side of JUSB1 and JUSB2, will support one USB port on the Front Panel.
Two sides per JUSB1 and JUSB2 = 4 USB ports on the Front Panel.

For additional questions, or clarification to anything I have stated above, please post in a Comment.

Regards,
joecoolvette

Jul 20, 2012 | MSI Motherboards

2 Answers

I HAVE A NEW CASE, & NEED TO CONNECT THE FRONT UBB & AUDIO LEADS. CAN YOU HELP, CHEERS


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.

mariolands_29.jpg

Jan 23, 2011 | EliteGroup P4M800PRO-M478 Motherboard

1 Answer

How to correctly attach usb 1 and 2 cables from front of computer to foxconn motherbraod a6gmv


Foxconn Support > A6GMV motherboard > Main Support page,

http://www.foxconnchannel.com/product/Motherboards/detail_overview.aspx?ID=en-us0000496

Click on Motherboard Manual

On the next page go down to the heading > File Download
At the end of > Motherboard, Socket AM3, Motherboard Manual, click on > View Detail
Finally go to the right of Download, and click on the blue Zip Disk icon.

In the small window that comes up >
Opening Motherboard_AMD_Socket AM3_A6GMV_Manual_English_A6GMV-EnManual-V1.0.zip
,make sure there is a green dot in the circle to the left of Save File.

If not, left-click on the empty circle to the left of Save File.
Now go below, and click on OK.

A small window will come up. Observe the heading at the top of the window.
It may have Desktop, or My Documents, or Downloads, in the heading.
This is where the zip file will go to.

(Desktop screen.
Or Start> My Documents {Documents for Vista}
Or Start > My Documents > Downloads)

When you see the file Double-click on it.
Click on Unzip
Go to the top left, and click on Extract All Files
Click on the file name. (Next to the Adobe PDF icon)

Section 1:15 (Sec1:15)

There are Two green USB headers that are parallel to the bottom edge of the motherboard.

Looking at the USB headers there are two rows of pins.

The Top row of pins is numbered Evenly
The Bottom row of pins is numbered Odd.

On the Top row starting from the Left side of the motherboard, going towards the Right,
Pins 2, 4 ,6, 8, and 10.

On the Bottom row starting from the Left side of the motherboard, going towards the Right,
Pins 1, 3, 5, 7, and 9.

BOTH are numbered the same way.

EACH USB header can provide Two USB ports.

A) Pins 1 and Pin 2 are VCC

B) Pins 3 and Pin 4 are D -

C) Pins 5 and Pin 6 are D+

D) Pins 7 and Pin 8 are Ground

E) Pins 9 and 10 are not used. (Actually there is NO Pin 9)


USB pinout,

http://pinouts.ru/Slots/USB_pinout.shtml

Another USB pinout,

http://pinouts.ws/usb-pinout.html


One more time with details explaining the different types of USB styles,

http://en.wikipedia.org/wiki/USB


Follow the color code of the wires in the cables coming from the USB port.

Use a multimeter to test each wire, if you are not sure what wire goes to what pin in the USB port.
Perform a continuity test with the multimeter set to OHM's.

Touch the individual wire in the USB cable, coming from the USB port, with the Positive (Red) probe lead.
Now touch a pin with the Negative (Black) probe lead of the multimeter.

When the meter scale shows continuity, you know what pin that wire goes to.
Write it down. Mark the wire with a small piece of masking tape, write on the tape what pin the wire goes to.

VCC, D-, D+, or Ground. (GND)

Have further questions regarding this post in a Comment.
joecoolvette

Nov 26, 2010 | Motherboards

1 Answer

After removing a defective Intel D975XBX2 motherboard and replacing it with the same, but good, motherboard [D975XBX2] the front two USB ports on my computer stopped working. The back four USB ports work...


You probably connected the cables incorrectly. Then end of the pins on the motherboard, that has 1 pin missing (5pins in parallel with 4), is the end that has the Shield wire connected on the plug.

Jun 11, 2010 | Intel D975XBX2 Motherboard

1 Answer

Wires for USB go to which MoBo pins?


there is two sets of 4 pin on each with an xtra ground you may not use.
Here is the link for your motherboard manual which shows the connections.
i.e you can connect your two sets of 4 wires to usb 1 or split them i.e 1 set of 4 on usb 1 and 1 set of 4 on usb 2.
http://zhornyak.com/soyo/Soyo_P4X400_Manual.pdf

Oct 06, 2009 | Soyo P4X400 Dragon Lite (P4X400DRAGNLITE)...

2 Answers

Front panel connector J16 dell dimension 2350


Visit http://support.dell.com select your product and download user manual and maintenance manual. It may solve your problem.

Jul 15, 2009 | Motherboards

1 Answer

Where to connect card reader?


Easy, if you find where your front usb port is connected you'll see some odd ports that have 10 pins slots one of which has a missing pin, either in the lower left hand corner or in one of the center pin positions. Find the one that matches your generic (usb) card reader and plug her in. The card readers that come prebuilt in computers now are based on usb technology and fit into the same slots as the USB connectors. In fact if this is on a 915G it should plug into one of the JUSB1 or 2 slots.

Sep 12, 2008 | MSI 915G Combo-FR Motherboard

2 Answers

Soltek SL-75FRN2-L front pannel connecting


The USB header on the MOBO is an 8 or 10 pin in a 2X4 or 2X5 orientation. there will be one pin missing, that is not unusual. the plug will have the same socket filled. Most MOBOs have multiple USB headers on it and they are almost aleays labeled USB2 or whatever number.

May 19, 2008 | Soltek SL-75FRN2-L Motherboard

1 Answer

Trying to set up front usb ports on asus p4p800se


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.

Jan 06, 2008 | ASUS Intel 815E Chipset TUSL2 (TUSL2 SWA)...

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