README.TXT Driver File Contents (

                Avance Logic AC'97 Sound System Software        ver: A2.71
                        Installation and Setup

Driver & Application Installation/Removal Procedure For Avance AC'97 Codec:

<<< For Win98/Win2000/WinME (WDM driver) >>>

Setup Driver/Application at first time:

Step 1. Before installing the Avance AC'97 Drivers & Applications, Press the
        [Cancel] button if Windows detect the PCI Multimedia Audio device. 
Step 2. Insert the "Avance AC'97 Drivers & Applications" CD into the CD-ROM 
        drive and run the setup.exe program to finish the installation. 

Step 3. Click on [Next/OK/Go] to continue the procedure. If the Windows popup 
        "Digital Signature Not Found" message, press [Yes] to continue the 
Step 4. Finally, select to restart the system and press [Finish] to complete
        the installation.  

        The system will reload the drivers and do some adjustments in the INF
        file if so required.

Update Driver/Application:

Step 1. Follow Step 2,3,4 described in [Setup at first time] above to complete
        the procedure.

Remove Driver/Application:

Step 1. Go to Start\Settings\Control Panel.

Step 2. Select [Add/Remove Programs] icon.

Step 3. Select "Avance AC'97 Drivers and Applications" and press [Change/Remove]

Step 4. Click on [Next/OK/Go] to finish the uninstallation.        

Step 5. At the end of the procedure, select to restart the system and press
        [Finish] to complete the uninstallation.

<<< For WinNT 4.0 (NT4 driver) >>>

Setup Driver/Application at first time:

    Ignore Step 1, and follow the same procedure in Win98.

Update Driver/Application:

    The same procedure in Win98.
Remove Driver/Application:

    The same procedure in Win98.

Silent Installation:

Run "Setup -s -f2<path\LogFile>"
i.e. setup -s -f2c:\mylog.log 

Note: AVRack only works fine under WinNT 4.0 after installing
      Service Pick 3 or later.

Version Informations:

WDM driver for Win98SE/WinMe/Win2000/WinXP :
VXD driver for Win95/Win98Gold             :
VXD Software wavetable driver              :
NT4 driver for Windows NT4                 :
NT4 software wavetable driver              :

AvRack for Win98/Me/2000                   : 2001.7.1.0
AvRack for Win95/NT4                       : 2001.7.1.1

Avance Sound Effect Manager                :
Avance Sound Effect Manager for NT4        : 2.3

Driver/Application Setup Program           : 4.67

A2.71 - (compare to A2.61)
   1.set CD Maximum volume to +12dB.
A2.61 - (compare to A2.56)
1.  Fix 48KHz if SPDIF SRC was enabled.
2.  Fix NT4 driver for IRQ sharing on VIA8233A
A2.56 - (compare to A2.53)
1.  update VXD driver for VIA8233A.

A2.53 - (compare to A2.51)
1.  Support VIA8233A audio controller.
2.  Eliminate the PCM noise while playing AC-3 stream through SPDIF-out.
3.  Power down EAPD when master volume mute.
4.  Fix HCT full duplex unstable problem for VIA8233 audio controller.
5.  The driver now support only VID/DID/SVID/SSID entry for WHQL requirement
6.  The drivers in this package has passed logo for ALC201A.

A2.51 - (compare to A2.48)
1.  Fix HCT ACPI stress device I/O test for VIA8233.
2.  Improve compatibility with software modem for power management.
3.  The drivers in this package has passed logo for ALC201A

A2.48 - (compare to A2.45)
1.  Add customized options.
2.  Mute volume when volume slider was adjusted to the bottom.
3.  The driver now support the VID/DID entry
4.  The drivers in this package has passed logo for ALC201A.

A2.45 -
1.  First release for ALC201A.
2.  The driver only support the VID/DID/SVID/SID entry to meet the
    INF requirement for PCI devices for WHQL logo.
3.  The drivers in this package has passed logo for ALC201A.

A2.40 - (compare to A2.30)

1.  Enable ALC201 3.3V function (INF optional)
2.  Auto Power down DAC/ADC (INF optional)
3.  Avoid scandisk problem on some machines
4.  Fix HCT system test for VIA 686 (ACPI / Stress Device I/O)
5.  Change version number to 5.10.00.xxxx for WinXP versioning requirement
6.  Save/Restore recording mux setting
7.  Improve compatibility with PCTel MR card
8.  Fix hang problem while burn-in PowerDVD on some machines.
9.  Fix IBM ViaVoice Mixer problem.
10. Add MIC 20dB Boost control on recording MIC source line
11. Add Subsystem IDs

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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