USB Pin connections

[HMSDOC]

I have a question regarding the connection of the two USB ports on my Lian Li
case to the Gigabyte 8KNXP motherboard. The motherboard manual calls for
placement of pins….9 pins for each of two Front USB connectors. From what I
can tell each of the USB connectors gets pins labeled power, power, USB Dx-,
USBDy-, USB Dx+, USB Dy+, GND, GND, and NC (what does NC mean?). So 18 pins for
2 Front USB connectors best I can tell. However, the Lian Li case has 2 front
USB ports. One port has 5 pins and the other 4 pins…way less than 18..and
they have different labels as well….Shield, VCC1, DATA-1, DATA+1, and GND1
for one of the ports. The other has pins labeled VCC2, DATA-2, DATA+2, and
GND2. OK, so how does this all get connected up???? Seems like different
labels and pin #'s. If I look at the total pin number from the case, there are
9, so is it possible that on the motherboard each of the 9 pin Front USB
connectors can power two USB's and that the native motherboard can supply 4
front USBs?? That still leaves what goes to what pin.

Any help would be appreciated.

Thanks.

Howard

 

[Gary Tait]

Whereas On 24 Oct 2003 01:57:02 GMT, (e-mail address removed) (HMSDOC)
scribbled:
, I thus relpy:

I have a question regarding the connection of the two USB ports on my Lian Li
case to the Gigabyte 8KNXP motherboard. The motherboard manual calls for
placement of pins….9 pins for each of two Front USB connectors. From what I
can tell each of the USB connectors gets pins labeled power, power, USB Dx-,
USBDy-, USB Dx+, USB Dy+, GND, GND, and NC (what does NC mean?). So 18 pins for
2 Front USB connectors best I can tell. However, the Lian Li case has 2 front
USB ports. One port has 5 pins and the other 4 pins…way less than 18..and
they have different labels as well….Shield, VCC1, DATA-1, DATA+1, and GND1
for one of the ports. The other has pins labeled VCC2, DATA-2, DATA+2, and
GND2. OK, so how does this all get connected up???? Seems like different
labels and pin #'s. If I look at the total pin number from the case, there are
9, so is it possible that on the motherboard each of the 9 pin Front USB
connectors can power two USB's and that the native motherboard can supply 4
front USBs?? That still leaves what goes to what pin.

Any help would be appreciated.

Thanks.

VCC goes to power, Gnd to DND, (doesn't really matter which) , Shield
to GND, and the Datas to Data. Here you must keep the + and -
straight, and the X and Y straight (which will translate to 1 and 2).

PWR= VCC1,2
GND= GND1,2,Shield
USBDx+ = DATA+1
USBDx- = DATA-1
USBDy+= DATA+2
USBDy- = DATA-2

 

[HMSDOC]

Does it mater if USB1 goes on the top row of 5 pins or the bottom row of 4 pins
as long as all the polarities are matched correctly. The way it is set to go
from the way you and the case instructions describe the group of 5 pins should
go on the bottom row of 4 pins on the mobo and the group of 4 on the row of
5..if I reverse them it looks like it would fit properly! (ie USB 2 on the row
that the directions seem to say should be USB 1)

Howard