Re: multi port USB hubs question
On Nov 28, 9:41*am, "Walter Goldschmidt" <wg...@woh.rr.com> wrote:
> Your replies make complete sense to me but I didn't know about hubs with
> their own power supply. As a matter of fact this is the first time I've ever
> been involved with this device, Thanks for the education.
> "Michael Walraven" <mexxwalra...@verizon.not> wrote in message
> > Did you USB hub have its own external power supply ? If it did not then
> > you have discovered your problem. If the hub is not using an external
> > supply then ALL its power is coming from the one USB port and being
> > divided among the ports in use. In your case you need two powered ports
> > and with the USB hub are getting only power from one.
> > (Hubs destined for use with desktops usually include a power plug wart
> > thing, those destined for laptops often don't have a provision for
> > external power.)
> > You can get information on power available and used on USB hubs from
> > device manager
> > Universal Serial bus controllers
> > the various USB Root Hub entries
> > Michael
> > "Walter Goldschmidt" <wg...@woh.rr.com> wrote in message
> >> I recently received a multi port USB hub and plugged it into my laptop..
> >> It seemed like a good idea as I only had 2 USB ports on my computer. This
> >> gave me 4 where before I only had 1 which made a total of 5. I pluggeda
> >> new external DVD burning drive into one of the multi ports ports. The
> >> drive used 2 ports, 1 for drive and 1 for drives power. I also plugged2
> >> external hard drives into the other 2 ports. The burning drive would not
> >> work and 1 of the external hard drives was not detected in computer. I
> >> worked on this problem all day surfing web for answers and finally got
> >> online with Microsoft support and chatted with a tech. He took controlof
> >> my computer and did some troubleshooting for 3 hours. Nothing he did
> >> helped. I got to thinking about the multi port USB hub and unplugged it
> >> from computer. Then I plugged the burning drive directly into the
> >> computer using both USB ports on computer. It worked flawlessly. Is this
> >> typical of these hubs or do I just have a cheap one and need a better
> >> one. I think my ports on my computer weren't generating enough power to
> >> run all the devices. Any information on this would be very helpful.
> >> Walt
FYI: There are two main types of USB hubs. One type is a hub that
just plugs in and uses the USB too power the other USB devices that
you connect to it. These are very useful when travelling since they
do not have the bulky power supplies.
The second type and possibly a "better" type are the powered hubs.
These come with a bulky "sqarish" transformer to provide additional
power to other devices.
Hard drives and DVD / CD burners tend to require more power than flash