USB problem

[quantity]

New Mach II. I can turn it on and the head gets cold - excellent. However I can't get the USB to connect to any host. I can load the driver and software but the thing never gets noticed. I get the "USB connection error" dialog box when starting MCC.

Inside the Mach II itself the supplied 4-pin USB cable is plugged onto 4 pins of a 5-pin header labelled J4 - what are the pin functions exactly? I am pretty sure pin 4 and 5 (unused) are GND. If I can get this information I can surely get the cable connected right. The motherboard is actually a server and has no 4-pin headers, so I have hacked a USB cable as an adapter. However I am fairly sure that the cable color-coding and the manual picture are not in agreement.

Any help is appreciated!

Regards,

The Quantity

 

[quantity]

OK I fixed it. Through a cunning plan I was able to determine which of the three non-ground wires must be the +5V (it has a different resistance to ground than the other two, which therefore must be the data pair) and rewire my hacked cable adapter. I am up and running in MCC now.

It appears that the 5-pin header must be VCC, D-, D+, GND, GND (1-5). The wires in the cable on my unit were not the standard cable colors (red for +5V etc.) so the diagram on page 15 has that wrong, but the pinout is correct.

So now everything is cool, if you take my meaning.

Thanks,

The Quantity.

 

[fatty]

Glad you fixed it

 

[yuma]

I have the same problem, I have changed the pin location on the USB plug to mainboard specs, it is now acc to page 15 of the manual, red=1, white=2, green=3, black=4.

I have the unit delivered with white=1, green=2, red=3, black=4, in the unit on the controller it is still in this order.

Can some one tell me, how the pin lay-out in the unit on the controller is