USB 2.0 Question

the1andonly1

I've just installed a external hard drive via my usb port. According to device manager in windows I have USB 2.0 (there is an usb 2.0 enhanced controller present) but i'm only getting usb 1.0 transfer speeds. the hard drive is also usb 2.0 enabled. i'm confused!? any ideas? thanks

aidan_walsh

Check the manufacturers documentation to make sure that Windows is properly set up to use the device as a USB 2 device, otherwise it'll assume USB 1.1.

Stephen

If you're using Windows XP, make sure you've got at least service pack 1 installed.

the1andonly1

There's nothing in the manufactures documentation and i've service pack 1 installed. i'm at a loss.

Villain

Is it powered?

Some external USB 2.0 kit need two USB cables one for power and the otehr for transfer, not sure if thats related but might be worth a check.

the1andonly1

yep, its powered. just wondering if its anything to do with the usb bandwith available to the device? is it possiblle to change this figure? at present its at 10% in device manager

Optikus

Have you downloaded the latest USB 2.0 drivers?

this might help http://support.microsoft.com/?scid=kb;en-us;312370

davkav

did ya check the settings in the bios. the bios can set the USB to 1.1 or 2.0 and sometimes both so you can use both types of devices.
I had to turn mine onto 2.0 in the bios to get it to work

the1andonly1

just checked the bios, there doesnt seem to be an option to change from 1.1 to 2? yeah i've got all the drivers for it, i'm still confuddled

Optikus

you might need a BIOS update then

RicardoSmith

I had problems with a socket A motherboard, (Epox) in the past. No matter what I did I couldn't get usb2 working on it. Replaced the board with another make and had no problems from then on.

the1andonly1

i've downloaded an update from the dell website (i've a dell laptop) and thats improved the speed up to about 20mb/s, still nowhere near the 400mb/s i should be getting.

OfflerCrocGod

the1andonly1 wrote:

to about 20mb/s, still nowhere near the 400mb/s i should be getting.

Can we be very clear about this please, it's 20Mbps not 20MBps right? There is a huge diff between the two !

the1andonly1

20Mbs, sorry !