-=PCTechTalk=- Re: Method to test hub?
- From: Jim <n1jmm@xxxxxxxxxxxx>
- To: pctechtalk@xxxxxxxxxxxxx
- Date: Mon, 15 Jul 2002 11:23:23 -0400
The POWER SUPPLY has NOTHING to do with the BANDWIDTH.
The sole purpose of th epower supply is to supply the DC power needed to
operate the devices. Typically the computers internal power supply, supplies a
limited amount of power to the USB ports. If the device requires more power
than what is normally
available via the usb bus then it should have it's OWN power supply. Some hubs
don't supply any additional power, however my guess would be most do supply
power.
The kind of problems your describing could indicate a power problem, but it
could also be a software/driver interference problem.
I don't know about your mobo, but on mine, I can check the amount of current
being supplied to each USB port, not sure about my hubs which have their own
seperate power supplies.
-Jim-
Master NetLord wrote:
>
> Actually, the answer may lie within that thought -- I've been thinking about
> this (ain't that dangerous <G>). There is a limit to the bandwidth a USB
> device can use. The powwer supply is supposed to give it additional power
> (bandwidth) but what if the power supply went bad? That would, perhaps,
> explain why it won't work, and why the light is red instead of green.
>
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