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4 pin usb

Last response: in Motherboards
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September 15, 2009 2:13:15 AM

Hello :) 

Im buliding my first pc and everywere i look it says a front panel usb should be 5 pins, but in this case it only 4 pins, any ideas?Also mabye someone knows were i get a pic of connecing the usb pins in the mobo.

the mother bored im using is a gigabyte MA785GM-US2H.

More about : pin usb

a c 233 V Motherboard
September 15, 2009 3:11:35 AM

You need 4 pins. If the case doesn't have a USB connector, then each wire should be identified. All you need to do is connect each one to the corresponding pin.
a c 177 V Motherboard
September 15, 2009 3:35:23 AM

Please post case manufacturer and part number...
USB headers are normally either 5 pin (with one empty), or 2x5's with one hole blocked, to 'key' the connector so it can't be plugged in wrong.

The pins closest to the CPU are power - +5V
The next pin down is signal -
The next pin down is signal +
The next pin down is ground

on the right side of each header pair, the bottom pin has no connection...

Page 30 of your manual:
a c 233 V Motherboard
September 15, 2009 12:05:03 PM

If your case has individual wires (very few cases do), then you should connect them as follows:

Pin 1 +5V
Pin 3 Data -
Pin 5 Data +
Pin 7 Ground
!