- Jul 25, 2012
- 1,759
- 6
- 20,765
Here's my situation:
I got a USB hub from China, and it has an unfortunate circuitry issue in that it feeds power through from its external power supply to the computer (My mobo light remains on despite the PSU not being turned on).
12v 2a DC adapter ---> Hub ---> PC
The problem is that the power from the adapter would flow into the computer from the power supply - or at least, when my actual PSU was unplugged, the Mobo light remained on.
Anyhow, I figure this is kind of not the best thing in the world to have going on. So I decided to do some fiddling around, and since it has its own power supply I figured that cutting the 5v red wire would stop the feedback (since it needs no extra power). It did.
However, now all I have connecting to the computer is a ground, and data+/-. Is that going to burn out the USB port at all, or cause other problems? I've tested it, and the hub works fine since it gets power from an outlet and not the PC, but at the same time I just want to know if there could be any problems if I were to use it.
Again, to recap:
The 5v+/- red wire is CUT. No power seems to flow into or from the PC.
The ground wire is still intact.
The Data+/- wires are also still intact.
Does anyone know if this will be a problem?
I got a USB hub from China, and it has an unfortunate circuitry issue in that it feeds power through from its external power supply to the computer (My mobo light remains on despite the PSU not being turned on).
12v 2a DC adapter ---> Hub ---> PC
The problem is that the power from the adapter would flow into the computer from the power supply - or at least, when my actual PSU was unplugged, the Mobo light remained on.
Anyhow, I figure this is kind of not the best thing in the world to have going on. So I decided to do some fiddling around, and since it has its own power supply I figured that cutting the 5v red wire would stop the feedback (since it needs no extra power). It did.
However, now all I have connecting to the computer is a ground, and data+/-. Is that going to burn out the USB port at all, or cause other problems? I've tested it, and the hub works fine since it gets power from an outlet and not the PC, but at the same time I just want to know if there could be any problems if I were to use it.
Again, to recap:
The 5v+/- red wire is CUT. No power seems to flow into or from the PC.
The ground wire is still intact.
The Data+/- wires are also still intact.
Does anyone know if this will be a problem?
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