quick USB question

[Matt]

I'm getting ready to hook up the front USB connections on my case to my
motherboard and I was curious about something. My motherboard (Asus A8V)
has the following pin configuration:

(2 pins) USB+5V
(2 pins) USB_P(port number)-
(2 pins) USB_P(port number)+
(2 pins) GND (ground)
(1 pin ) NC

But the cables on the motherboard have the following:

(2 pins) USB+5V
(2 pins) USB_P(port number)-
(2 pins) USB_P(port number)+
(2 pins) GND (ground)
(2 pins) GND2 (ground)

So I'm wondering what the extra 2 ground cables are for? And why would they
be included if they aren't used on the motherboard?

 

[doS]

which case?

 

[Papa]

Hi Matt:

Go to http://www.frontx.com/cpx101_2.html

Regards.

 

[o-chan]

I'm getting ready to hook up the front USB connections on my case to my
motherboard and I was curious about something. My motherboard (Asus A8V)
has the following pin configuration:

(2 pins) USB+5V
(2 pins) USB_P(port number)-
(2 pins) USB_P(port number)+
(2 pins) GND (ground)
(1 pin ) NC

But the cables on the motherboard have the following:

(2 pins) USB+5V
(2 pins) USB_P(port number)-
(2 pins) USB_P(port number)+
(2 pins) GND (ground)
(2 pins) GND2 (ground)

So I'm wondering what the extra 2 ground cables are for? And why would they
be included if they aren't used on the motherboard?

One row has 5 pins, 2 are ground.
The other row has 4 pins, 1 is ground.

The header is designed this way so that you know where pin 1 is. It's
okay if one of the pin connectors on the cable doesn't attach to
anything. It's normal.

 

[Matt]

which case?

SkyHawk MSR4610 Silver Aluminum ATX Mini Server Case