High speed device to what USB port?


D

dkb

"The hubs shown in bold type have free ports that can support the
Hi-Speed USB device."Recommendation--Disconnect the Unknown Device from
its current port and then connect it to one of the ports on a hub shown
in bold type"
- (Generic USB Icon) Intel (R) ----USB 2 Enhanced Host -24DD
- USB Root Hub (8 ports)-----(In Bold type font)
-Unused Port
-Unused Port
-Unused Port
-Unused Port
-Unused Port
-Unused Port
-Unused Port
-Unused Port
I have added a USB hub having 4 ports and the Quantum Chinese made is
connected to the back of the box of the PC.It is to this hub that my
external HD is connected to. It may be added here that even if I connect
the HD direct to the port in the back still I get the same thing, but
insted of 8 ports I see only 4 ports. Tried different port direct in the
back but with the same message.
I do not know where should I connect my external HD in the port that has
the High speed connectivity? I need help to understand all this?
Please guide.
dkb
 
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D

Dragomir Kollaric

"The hubs shown in bold type have free ports that can support the
Hi-Speed USB device."Recommendation--Disconnect the Unknown Device from
its current port and then connect it to one of the ports on a hub shown
in bold type"
- (Generic USB Icon) Intel (R) ----USB 2 Enhanced Host -24DD
- USB Root Hub (8 ports)-----(In Bold type font)
-Unused Port
-Unused Port
-Unused Port
-Unused Port
-Unused Port
-Unused Port
-Unused Port
-Unused Port
I have added a USB hub having 4 ports and the Quantum Chinese made is
connected to the back of the box of the PC.It is to this hub that my
external HD is connected to. It may be added here that even if I connect
the HD direct to the port in the back still I get the same thing, but
insted of 8 ports I see only 4 ports. Tried different port direct in the
back but with the same message.
I do not know where should I connect my external HD in the port that has
the High speed connectivity? I need help to understand all this?

Hm I thought USB 2 *IS* High speed (compared to USB 1).

If you connect the external HDD does the OS see it? Do you have
access (i.e. read and write). If yes, why don't you just hook up the
HDD and run a few tests with it? Maybe the transfer rate to and from
the external HDD is as "high" as it could be. Sometimes those kind
of wrong messages can be meaningless. Again I'd try the drive, and
if it work, I'd ignore the warning.


Please guide.
dkb



Dragomir Kollaric
 
D

dkb

Dragomir said:
Hm I thought USB 2 *IS* High speed (compared to USB 1).

If you connect the external HDD does the OS see it? Do you have
access (i.e. read and write). If yes, why don't you just hook up the
HDD and run a few tests with it? Maybe the transfer rate to and from
the external HDD is as "high" as it could be. Sometimes those kind
of wrong messages can be meaningless. Again I'd try the drive, and
if it work, I'd ignore the warning.






Dragomir Kollaric

When I connect the HDD yes the OS recognizes it. How to find whether I
have "read and write" access to this HDD? What tests you propose please?
Kindly elaborate the guidance a bit.
dkb
 
D

Dragomir Kollaric

When I connect the HDD yes the OS recognizes it. How to find whether I
have "read and write" access to this HDD? What tests you propose please?
Kindly elaborate the guidance a bit.

OK

If you connect the external HDD to the PC, then in "My Computer" or
some such place you'll see it. If it is formatted with the
file-system Windows uses, Fat32, NTFS whatever.

OK this portion seems to work if I understand your reply correctly.

If not then you'll need to format it first so that you can use it.
Windows has the tools for it (my last version was the 98 variant).

Well if the drive is formatted, then you can copy/paste or move
files onto it. You can also see what's on it, (this is what I meant
with (read/write) and delete stuff.

So to see if this is really a "High speed" device you could
copy/move a large file to it, if it is not "High Speed" then the
process will take some time, in this case "time" it to see how long
it takes to copy/move a file of a certain size. You could google to
find out how long it takes for USB 2 to copy/move a given file of a
given size. Also the description for the HDD should tell you also
how many MB (or some such amount) per second should be expected.

I've got a a USB2 enclosure for a Laptop HDD and it gives me these
values:

USB 1.1 12MBit per second
USB 2.0 "high speed" 480MBit per second

don't know what's yours, but most likely about the same.

I not sure if Windows will tell you how long it takes to copy a file
to a external Drive, but I guess there will be a process-bar or
something. To test this, use something you know you really don't
need, so if it gets lost (which I doubt) no harm is done.

HTH :)






Dragomir Kollaric
 
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D

dkb

Dragomir said:
OK

If you connect the external HDD to the PC, then in "My Computer" or
some such place you'll see it. If it is formatted with the
file-system Windows uses, Fat32, NTFS whatever.

OK this portion seems to work if I understand your reply correctly.

If not then you'll need to format it first so that you can use it.
Windows has the tools for it (my last version was the 98 variant).

Well if the drive is formatted, then you can copy/paste or move
files onto it. You can also see what's on it, (this is what I meant
with (read/write) and delete stuff.

So to see if this is really a "High speed" device you could
copy/move a large file to it, if it is not "High Speed" then the
process will take some time, in this case "time" it to see how long
it takes to copy/move a file of a certain size. You could google to
find out how long it takes for USB 2 to copy/move a given file of a
given size. Also the description for the HDD should tell you also
how many MB (or some such amount) per second should be expected.

I've got a a USB2 enclosure for a Laptop HDD and it gives me these
values:

USB 1.1 12MBit per second
USB 2.0 "high speed" 480MBit per second

don't know what's yours, but most likely about the same.

I not sure if Windows will tell you how long it takes to copy a file
to a external Drive, but I guess there will be a process-bar or
something. To test this, use something you know you really don't
need, so if it gets lost (which I doubt) no harm is done.

HTH :)







Dragomir Kollaric
Thank you for the guidance.
dkb
 

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