Table of Contents
Advertisement
6. faQ
1. What is USB 2.0?
USB 2.0 represents the next generation of PC peripherals and connectivity.
USB 2.0 is the first major evolution of the Universal Serial Bus standard,
which was originally designed to bring low cost connections and "plug-
and-play" consumer devices to the PC world. USB 2.0 adds new
functionality to your laptop, by allowing faster connections and greater
flexibility without the need for upgrading your existing USB devices.
2. Why USB 2.0?
Modern PC peripherals can run faster and do more than the original
USB designers ever dreamed. The USB standard was upgraded to keep
pace with the rapid advances in technology, and the explosion of new
consumer devices. USB 2.0 host controllers add the faster speeds and
greater flexibility than these new devices require. USB 2.0 will allow your
computer to connect to the newest USB devices: High-Speed Video and
Ethernet, ultra-fast scanners and disk drives, etc.
3. How much faster is USB 2.0?
USB 1.1 devices can communicate at about 12 Megabits/sec. USB 2.0
devices can communicate at speeds of up to 480 Megabits/sec
4. The 2.5" External Hard Drive power LED is on, but the drive is not
automatically detected by the operating system.
The mass storage device drivers are not installed correctly or there is a
resource conflict in the system. Use the Windows Add New Hardware
Wizard to detect the drive, or, if the drive has already been installed, use
the Windows Update Device Driver Wizard. Be sure that there are no
resource conflicts in the Windows Device Manager before installing the
drive.
5. The computer installs the device but operates at the slower USB
1.1 speed.
The drive is connected to a standard USB connector on your computer
and cannot communicate using the high-speed USB 2.0 protocol. Verify
that the USB host controller supports USB 2.0 transfer rates and that
the USB host controller has the correct device drivers installed. If you
are using the USB 2.0 hard disk drive on a standard USB connector on
your computer, the high-speed transfers are automatically disabled and
the USB 2.0 hard disk drive will operate as a USB 1.1 device. For more
information on connecting to USB connectors on your computer, refer to
your Notebook User's guide.
S
29
Advertisement
Table of Contents
