Readme.txt Driver File Contents (usb2_win_drv_v21.exe)

Adaptec USB 2.0 Driver Version 2.1

*****************************************************************
******                Windows 2000 Users                   ******
******                    PLEASE READ                      ******
******                                                     ******
****** When upgrading the USB 2.0 Driver on a Windows 2000 ******
****** system, please follow the instructions in the       ******
****** "Installing Drivers for 2000.pdf". Failure to do so ******
****** could result in improper installation of the driver.******
******                                                     ******
*****************************************************************


=========================
1.0 Key Product Features:
=========================
                                                                              
- Compliant with Universal Serial Bus Specification Revision 1.x
  and 2.0 (EHCI v0.95).
- Supports USB 1.1 and USB 2.0 under Windows 98SE, Windows Me, and
  Windows 2000.
- Full backward compatibility with USB 1.1 compliant devices and
  Hubs.
- Supports Plug & Play. Users can dynamically attach, remove and
  reconfigure peripherals without shutting down the system.
- Enables USB 2.0 devices to operate as high-speed devices
 (480 Mbps).
- Fully qualified with Adaptec USB 2.0 Hubs.

========================
1.1 System Requirements:
========================

PC System Requirements
- Windows 98SE, Windows Me, or Windows 2000.
- IBM-compatible PC, 333 MHz Processor, (64MB RAM or better.)
- Adaptec USB 2.0 PCI Host Bus Adapter (HBA) or Adaptec CardBus.

=======================================
1.2 Adaptec USB 2.0 Supported Products:
=======================================

Adaptec AUA-2000LP: USB 2.0 PCI Host Adapter with 2 external
                    ports.

Adaptec AUA-3100LP: USB 2.0 PCI Host Adapter with 3 external
                    and 1 internal port.

Adaptec AUA-5100:   USB 2.0 PCI Host Adapter with 5 external
                    and 1 internal port.

Adaptec AUA-3121:   USB 2.0/IEEE 1394 (FireWire) PCI Combo Card.
                    3 external USB 2.0 ports and 2 external
                    IEEE 1394 ports. 1 internal USB 2.0 port
                    and 1 internal IEEE 1394 port.

Adaptec AUA-1420:   USB 2.0 CardBus with 2-ports.

Adaptec XHub 4:     4-port external USB 2.0 Hub.

Adaptec XHub 4+:    4-port external USB 2.0 Hub.

Adaptec XHub 7+:    7-port external USB 2.0 Hub.

Note:  You must have an Adaptec USB 2.0 PCI Host Bus Adapter (HBA)
       or Adaptec CardBus product in your system to use the
       Adaptec USB 2.0 drivers.
                    

==================
1.3 Documentation:
==================

Much of our documentation is released in PDF format.  To view
these documents you must have Acrobat Reader version 4 or later
installed on your system.  You can find a copy of this software
on the CD shipped with your product or you can download the latest
version from <http://www.adobe.com>.

====================================
2.0 Hardware Installation Procedure:
====================================

Please refer to the installation instructions shipped with your
product for more information on Hardware installation.

==================================
2.1 Driver Installation Procedure:
==================================

Please refer to the Driver Installation Guides which were
downloaded with the drivers or are available as a seperate
download for instructions on installing drivers.

When upgrading the USB 2.0 Driver on a Windows 2000 system, please
follow the instructions in the "Installing Drivers for 2000.pdf".
Failure to do so could result in improper installation of the
driver.

Please remove all attached USB devices from the USB 2.0 PCI Host
Bus Adapter (HBA) or Adaptec CardBus before installing or updating
the USB 2.0 drivers.

=======================
3.0 Driver Limitations:
=======================
- The following USB 2.0 devices and features are not supported
  in this driver release:
   - USB 2.0 Isochronous devices (example: USB 2.0 webcams and
     USB 2.0 speakers).
   - Composite USB 2.0 Devices.
   - USB Remote Wake Up.

- Some devices which implement USB 2.0 interrupts may not work
  properly.

- Some USB 1.1 composite devices may not work properly if
  connected to a USB 2.0 Hub. (example: MIDI-interface,
  headphones/microphone system, and some keyboards).

- This driver does not currently support multiprocessor systems
  under Windows 2000.

- Currently the following systems are not supported with the
  Adaptec USB 2.0 CardBus and USB 2.0 Drivers.
  - IBM ThinkPad X20
  - Compaq EVO N150

==========
3.1 Notes:
==========
- Do not attempt to put the system into standby or hibernation
  during data transfer (I/O activity) with a USB device.

- The first time a USB device is plugged into a USB port, the
  system may prompt you to locate the driver for that USB
  device and request a restart.

- Do not add or remove USB devices while the system is in standby
  or hibernation.

- USB devices that do not work well when attached to USB 1.1 hubs
  will also not work well when attached to an Adaptec USB 2.0 hub.

- Please check your device manufacturer's web site for the latest
  updates to their software.

=========================
3.2 Troubleshooting Info:
=========================
- If you attempt to put the system into standby or hibernation
  during data transfer (I/O activity) with a USB device, you may
  experience problems with your system.  Please do not attempt to
  put the system into standby or hibernation during I/O activity
  with a USB device.

- When using Windows Me, the Device Manager will have a green
  question mark next to any USB 2.0 device which is connected
  to an Adaptec USB 2.0 card.  The device will continue to
  function properly.

- When using Windows 98SE, the Adaptec USB 2.0 driver may prevent
  some systems from entering into standby mode.
  
- The system may report that a USB 2.0 CD-RW connected to an
  Adaptec AUA-2000LP card does not contain any media when
  resuming from a suspend. To workaround this issue, use the
  "unplug or eject hardware" icon in the system to remove the
  USB 2.0 CD-RW. Unplug the USB 2.0 CD-RW from the card, and
  then plug it back in.

- If you unplug/re-plug a device too quickly, the system may
  not recognize the USB device.  To workaround this issue, allow
  at least 3 seconds between a unplug and re-plug.

- Removing two or more devices using the "unplug or eject"  
  hardware icon (on the system tray): Use the "unplug or eject"
  icon to remove one device, then physically remove the device,
  before attempting to use the "unplug or eject" icon to remove
  other devices. If you attempt to remove more than one device
  using the "unplug or eject icon," physically removing a USB
  device will cause the other devices to re-enumerate.

- When using Windows 2000, with certain CD-RW applications
  running, the system may stall if a USB CD-RW drive is
  removed using the "unplug or eject hardware" icon in the
  system tray.

- Before making any changes through the device manager to enable
  or disable the Adaptec Enhanced Host Controller, stop all USB
  devices connected to the Adaptec host bus adapter or CardBus and
  remove the USB devices from the system.

- When connected to an Adaptec USB 2.0 Hub, Creative USB 1.1
  webcams, may not re-enumerate if you put the system into standby
  mode. To workaround this issue, unplug and re-plug the webcam.

- When using an HP PSC-750 printer/scanner/copier or a Tascam
  USB-428 audio/MIDI interface, we recommend connecting the device
  directly to your USB card or built-in USB port rather than
  through a Hub.

- When using the Adaptec AUA-1420 CardBus card, Adaptec USB 2.0
  drivers, and the Xircon Ethernet CardBus card, with Windows
  2000, the ethernet card may not work properly. This will be
  addressed in a future release of our drivers.

- Before removing an Adaptec AUA-1420 cardbus card, use the
  "unplug or eject" icon (on the system tray) to stop and remove
  attached USB devices. Then use the "unplug or eject" icon to stop
  the cardbus card. It is then safe to eject the Adaptec AUA-1420
  from the cardbus slot.

16.01.2002 11.19


Download Driver Pack

How To Update Drivers Manually

After your driver has been downloaded, follow these simple steps to install it.

  • Expand the archive file (if the download file is in zip or rar format).

  • If the expanded file has an .exe extension, double click it and follow the installation instructions.

  • Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.

  • Find the device and model you want to update in the device list.

  • Double-click on it to open the Properties dialog box.

  • From the Properties dialog box, select the Driver tab.

  • Click the Update Driver button, then follow the instructions.

Very important: You must reboot your system to ensure that any driver updates have taken effect.

For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.

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