Anyone ever had problem with usb2.0 changing to usb1.1?

my external harddrive is ridiculously slow as of late and i noticed that when i plug it in, it displays the little notice on the bottom right of my screen. "usb device can perform faster if plugged into a higher speed usb" thingy. Its rather funny cause my notebook is an asus g1, which obviously has all 2.0 usb's and the external hd is relatively new as well, and without a doubt is a usb 2.0 as well. but now its saying its not. anyone have any ideas on whats wrong?

 

It was a very common but with Thinkpad T4x... Most time, it happens after a large number of plug in and plug out from USB device. New main board was the only solution.

 

Its because you have USB 1.1 device like a hub in between the drive and laptop.

 

Most likely your USB port isn't supplying enough power to the device. Try switching to a different USB port, plugging the device into a power outlet, or disconnecting other USB devices.

 

That has ABSOLUTELY nothing to do with it. Who told you this?

 

I might be wrong here... But doesn't both USB2 & USB 1.1 pump out 5v? Again I might be wrong.

 

Well once you confirm Grim's input is or is not the reason. Then onto Budding and Greg. I am only guessing here. I think Budding is thinking the external HDD needs supplemental power and the USB cannot provide. So while Greg you are likely correct about both putting out the same volts the HDD needs more and operates at the lower to send power where needed.

On to my own thoughts. Do you have any other USB devices you could test the port with. An attempt to try and isolate the problem. I would use a USB memory stick and benchmark it for example HDTach. It would clearly show USB 1 vs 2 speeds. If it is the port itself? Drivers, beyond that I have no clue (Grim do not comment on the last 4 words I said).

 

Haven taken Electrical Engineering in college what you stated makes ZERO sense. Both USB 1.1 and 2.0 supply 5 volts AT 500ma. NOTHING more. NO the USB port does NOT change the regulated 5 volts it supplies based upon load. This is another example of people creating their own reality. People need to change IMO.

USB 2.0 ports do NOT drop down to 1.1 speeds if a device is pulling more current than a port can supply. (No, voltage has nothing to do with it)

 

Wooow calm down man. This doesn't need to become an argument!

I agree with you, by the way, about power probably not being the issue. I doubt that the external drive could run (no matter what the interface) without being supplemented power from the wall. I just don't think 5v's is enough no matter what... (actually.. I'm curious, has anyone seen any external drives that didn't need a wall jack? )

In my opinion, Powerpack is correct that the best troubleshooting method at this point is to use a USB memory stick to see if that reads as 2.0. Not necessarily for reasons of power, but to isolate the problem.

But hey, let's not get down on each other for exchanging ideas. That is what forums are all about.

 

3.5" external drives are not powered by the USB port. The USB port provides absolutely NO power to the actual 3.5" drive or circuity as that is all provided via AC adapter/switching PSU. Again this is simple electrical engineering.

2.5" external drives pull all thier power from USB port/ports. (Some drives have two usb conectors to supply power)

 

You guys really do not know how to answer a question, he/she doesnt care about voltage, she wants the drive to work

I would recommend going into the device manager, and right clicking the USB hub. Than click rollback driver, and that should flash the hub back to USB 2.0 drivers.

If not, then click disable. Then click enable, and WIndows will automatically reinstall your usb drivers.

Also make sure that your usb ports are clean, if its loaded with dust, you will have connection issues.

K-TRON

 

You are absolutely the biggest jerk.

Did you answer the question? Thought not you dumb *******!

 

I did answer the question....