Case front USB port connection


M

MNaut

I have a PC that has not had a functional front USB port since it was built
for me a couple of years ago. When new, I was told that the front case plug
"didn't work well with the mother board that I had chosen". It hasn't been
a huge issue until I got a digital camera and have to screw with trying to
lean over to the back of the tower and find the USB plug to load in
pictures. Recently I realized the plug was actually wired to the board
(apparently incorrectly), but still non-functional. The builder of the
system has supplied me with some fragmented information and told me that the
front USB port should work if wired properly to the board. After a couple
of attempts for specific directions and not knowing the proper questions to
ask, I think he may have given up on me.

The mother board is a ECS K7S5A SOC A SIS735 DDR W/SND and the front USB
plug is incorporated into a Premiew 300W TM-369 MID ATX Case


I discovered that the USB port (plug) is a self contained unit labeled
9908S061-004 with 9 wires coming from it bundled in a black sheath. The
wires end up (and are plugged into) the mother board pins in the area that
this ECS link indicates: http://www.ecsusa.com/support/p_k7s5a.html I
Although I have resequenced the pin plugs to what seems to be the logical
configuration, the port is still non-functional and I can only assume that
they are not in the proper sequence. If anyone has a clue as to how to
translate the USB plug wire labels to the board pin assignment provided, I
would greatly appreciate it. Both sets of labels are provided below.

Below are the labels for the 9 plugs attached to the USB port wiring:

VCC 1

VCC 2

DATA -1

DATA -2

DATA +1

DATA +2

GND 1

GND 2

SHIELD



Below are the labels for the mother board pins:

1.. VREG_FP_USBPWRO
2.. VREG_FP_USBPWRO
3.. USB_FP_P0-
4.. USB_FP_P1-
5.. USB_FP_P0+
6.. USB_FP_P1+
7.. GROUND
8.. GROUND
9.. KEY (no pin)
10.. USB_FP_OC0
 
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A

Alien Zord

MNaut said:
I have a PC that has not had a functional front USB port since it was built
for me a couple of years ago. When new, I was told that the front case plug
"didn't work well with the mother board that I had chosen". It hasn't been
a huge issue until I got a digital camera and have to screw with trying to
lean over to the back of the tower and find the USB plug to load in
pictures. Recently I realized the plug was actually wired to the board
(apparently incorrectly), but still non-functional. The builder of the
system has supplied me with some fragmented information and told me that the
front USB port should work if wired properly to the board. After a couple
of attempts for specific directions and not knowing the proper questions to
ask, I think he may have given up on me.

The mother board is a ECS K7S5A SOC A SIS735 DDR W/SND and the front USB
plug is incorporated into a Premiew 300W TM-369 MID ATX Case


I discovered that the USB port (plug) is a self contained unit labeled
9908S061-004 with 9 wires coming from it bundled in a black sheath. The
wires end up (and are plugged into) the mother board pins in the area that
this ECS link indicates: http://www.ecsusa.com/support/p_k7s5a.html I
Although I have resequenced the pin plugs to what seems to be the logical
configuration, the port is still non-functional and I can only assume that
they are not in the proper sequence. If anyone has a clue as to how to
translate the USB plug wire labels to the board pin assignment provided, I
would greatly appreciate it. Both sets of labels are provided below.

Below are the labels for the 9 plugs attached to the USB port wiring:

VCC 1

VCC 2

DATA -1

DATA -2

DATA +1

DATA +2

GND 1

GND 2

SHIELD



Below are the labels for the mother board pins:

1.. VREG_FP_USBPWRO
2.. VREG_FP_USBPWRO
3.. USB_FP_P0-
4.. USB_FP_P1-
5.. USB_FP_P0+
6.. USB_FP_P1+
7.. GROUND
8.. GROUND
9.. KEY (no pin)
10.. USB_FP_OC0
The cable should be connected like this:

Vcc1 Vcc2
Data -1 Data -2
Data +1 Data +2
Gnd1 Gnd2

Leave the 9th wire unconnected.
 
M

MNaut

ALL HAIL ALIEN ZORD!
After 2 years my front USB port is now WORKING!
I had the whole sequence figured right with the exception of leaving the 9th
(shield) wire disconnectd. That tip made all the difference.
THANK YOU!!!
 
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A

Alien Zord

MNaut said:
ALL HAIL ALIEN ZORD!
After 2 years my front USB port is now WORKING!
I had the whole sequence figured right with the exception of leaving the 9th
(shield) wire disconnectd. That tip made all the difference.
THANK YOU!!!

YW.
 

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