May 15, 2010 07:59
Sounds like you're good to go then!!
I am not totally clear on what the iSense circuit does....I assume it is related to power management and fans, etc. and probably should be connected. I know there were some issues with the Carnetix supplies when Apple went to the Core 2 Duo boxes in terms of terminating the iSense circuit properly.....
In terms of the shield....in a power circuit, the shield is inhibiting RF noise from emminating (sp) from the red/black. In order for it to do it's job properly, any currents induced in it need to have a place to go, usually the ground.
In a signal circuit, the shield is doing the same thing but in a differential circuit (2 wires, 1 positive and 1 negative) it is also providing a 0 volt reference to the 2 signal legs. GPSNavX, who is much more organized than I, has a great diagram of differential vs single-ended circuits.
....hope this helps...
I am not totally clear on what the iSense circuit does....I assume it is related to power management and fans, etc. and probably should be connected. I know there were some issues with the Carnetix supplies when Apple went to the Core 2 Duo boxes in terms of terminating the iSense circuit properly.....
In terms of the shield....in a power circuit, the shield is inhibiting RF noise from emminating (sp) from the red/black. In order for it to do it's job properly, any currents induced in it need to have a place to go, usually the ground.
In a signal circuit, the shield is doing the same thing but in a differential circuit (2 wires, 1 positive and 1 negative) it is also providing a 0 volt reference to the 2 signal legs. GPSNavX, who is much more organized than I, has a great diagram of differential vs single-ended circuits.
....hope this helps...