Q: I installed a USB 2.0 card in my computer and it seems like it is faster than USB 1.1 ports from the motherboard. I think I have the latest driver installed. Any idea how I can tell when I turn on USB 2.0?
See map here: USB 2.0 card (http://www.newegg.com/product/product.asp?item=N82E16815104216)
Best Answer: did you get this adapter?
http://www.newegg.com/Product/Product.as…
the adapter (resp. the hard drive) should show up in "My Computer" where you also can find the internal hard drive C:\ and the CD\DVD drive (D:\ or another drive letter). if there is nothing else, you have to find the Utility "Computer Management". normally it is under Control Panel > Administrative Tools > Computer Mangement. being in the window "Computer Management" left click on Disk Management – now on the right side of the window a graphic representation of all connected drives will appear. there you should see all the same drives like in "My Computer" and one drive that hasn't a drive letter assigned (this is your drive connected via the bytecc adapter).
right click in the picture with the drive without a drive letter and select "Change drive letter ….", then click on the "Add" button and chose a drive that doesn't exist (e.g. F, G, H or whatever) then click Ok and close the window (nothing else may be done).
for heaven's sake don't click on "Format", this will erase all content on the drive.
now you should see the drive with the just assigned drive letter in "My Computer". i strongly hope this will solve your problem.
edit
i have a suspicion. is that hard drive you want to connect a 3.5" IDE? i suppose in this case you have to connect the power adapter not to bytecc adapter but to the IDE hard drive directly, otherwise it will not be powered but the computer only recognises the adapter that is still powered via the USB cable from the computer (the power plug on the adapter is only for SATA and 2.5" laptop hard drives).
Re:Originally posted by: guy
Originally posted by: guy
If you plug in a 2.0 device to a 1.1 port, XP will give you a notification that the device will run faster on a 2.0 port.
The only time I've noticed a difference between 1.1 and 2.0 is when I've used a 2.0 portable drive of some kind on a 1.1 port for large writes or reads. It's really slow. 
I'm a bit confused on this. Are you saying that a USB port is only running at 1.1 or 2.0? I had assumed that a port had the ability to provide either automatically, depending on what was connected to it.
On some motherboards you have to load ISB 2.0 drivers….
Some will only run USB until you load the drivers for USB2…..
Also some mobo`s are a real puta to get the USB 2.0 drivers to load!!
Re:Originally posted by: guy
What Mathias99 is saying is that a USB 1.0/1.1 port can't run any faster than that. A USB 2.0 port can run @ 2.0, but if you plug in a 1.0/1.1 device it will only run at that speed. The newer speed device is backwards compatible.
It's not that what you and guy said isn't clear enough in itself, but I think what confuses me is that I'm not certain when the terms used represent a physical or virtual device.
For instance, my MB has 4 2.0 ports + 2 2.0 ports powered by my sound card. Therefore, I would assume that any of these would function either way. But, looking in the Device Manager, there is listed 5 root hubs, 4 universal host controllers, 1 enhanced host controller, plus some other devices which I'm not too certain about. By the numbers, I would assume that there is a root hub for each of the host controllers, but if that is true, then I fail to understand, because everything that I have attached to USB is 2.0 (2 mice – 1 listed at 50ma), 1 printer (not listed by name), UPS (24ma), microscope (500ma) and a couple of composite devices (2ma and 98ma). This would make it appear that all 3 devices would appear in the same root hub, but they don't…each is in a separate hub. If only 1 hub is getting 2.0 power, then 2 devices are underpowered.
This is of particular interest to me, because of problems that I'm having with the 2 mice. Only 1 appears in the Device Manager. If judged by the power, only the microscope is being powered at 2.0, but that probably wrong.
It seems that the information given is simple enough, but not understanding exactly what it means.
Re:What Mathias99 is saying is that a USB 1.0/1.1 port can't run any faster than that. A USB 2.0 port can run @ 2.0, but if you plug in a 1.0/1.1 device it will only run at that speed. The newer speed device is backwards compatible.
Re:guy,
Thanks, but I'm still confused, but that's because that I really don't understand the USB system. I guess that I'll go over to usbman.com, and try to educate myself.
Re:Originally posted by: guy
Originally posted by: guy
If you plug in a 2.0 device to a 1.1 port, XP will give you a notification that the device will run faster on a 2.0 port.
The only time I've noticed a difference between 1.1 and 2.0 is when I've used a 2.0 portable drive of some kind on a 1.1 port for large writes or reads. It's really slow.
I'm a bit confused on this. Are you saying that a USB port is only running at 1.1 or 2.0? I had assumed that a port had the ability to provide either automatically, depending on what was connected to it.
:confused:
A USB controller only capable of transmitting/receiving at 1.0/1.1 speed will (obviously) not run at 2.0 speed even with a USB2.0 device attached to it. Technically speaking, the "port" and cable are the same, but for it to work both devices have to be able to communicate at the higher speed.
A USB2.0 controller might mistakenly run at only 1.1 speed if it is configured improperly, which I think is what people are talking about here.
Re:Originally posted by: guy
If you plug in a 2.0 device to a 1.1 port, XP will give you a notification that the device will run faster on a 2.0 port.
The only time I've noticed a difference between 1.1 and 2.0 is when I've used a 2.0 portable drive of some kind on a 1.1 port for large writes or reads. It's really slow.
I'm a bit confused on this. Are you saying that a USB port is only running at 1.1 or 2.0? I had assumed that a port had the ability to provide either automatically, depending on what was connected to it.
Re:That card has an NEC chipset and the native XP drivers should be used.
When I installed my NEC chipset PCI card to add 3 USB ports, XP automatically set it up.
But yes, look at hardware USB info in the device manager.
It should say enhanced USB controller….
Re:Plug a device into the card that you KNOW for a fact is USB Version 2.0, such as an external hard drive, if you have one.
Bring up the "Safely Remove Hardware" icon.
Here is an example from my system: USB Storage Device (http://i68.photobucket.com/albums/i24/JOSEPHLB/USBSTORAGE.jpg)
Now click on the "Properties" button and you should see this: USB Storage Device Properties (http://i68.photobucket.com/albums/i24/JOSEPHLB/USB2.jpg)
Look in the middle and for the "Location" section you should see the location id and then if your device is USB 2.0 compatible, it will show in parenths. (VERSION 2.0).
Re:I think its the devices speed. 1 gb flash drive read 6mb/s write 3mb/s.
Thanks for the help.
Re:remove the card remove all drivers and see what USB controllers are showing up in your device manager, then put the card in and install the drivers and what is added – make sure you see new NEC controller and Host… If you see that then theres nothing wrong with the card or installation – its something to do with the USB device you are connecting.
Is it a Flash memory based device ? maybe the device's speed is slow…
Re:just delete your USB drivers and have windows install them again if its 2.0 card it will then run at 2.0
Re:If you plug in a 2.0 device to a 1.1 port, XP will give you a notification that the device will run faster on a 2.0 port.
The only time I've noticed a difference between 1.1 and 2.0 is when I've used a 2.0 portable drive of some kind on a 1.1 port for large writes or reads. It's really slow.
0 Comments.