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Gari-Tech » HP CD-Writer Plus M820e Configuation Problem
Nov 18, 1999

HP CD-Writer Plus M820e Configuation Problem
Written by: Jorge Garifuna
Date: 11/16/99
Note: While I have done my best to ensure the accuracy of the information provided here, myself or any of garinet.com associates cannot be held responsible for any mistakes, damages or errors, resulting from the use of this information. This information is provided as is with no guarantee and solely for educational purposes. If you choose to use or follow the instructions here, be aware that it is at your own risk.

When installing the HP cd-writer plus m820e the adaptec software that is included with the drive, hangs the system if your are using a COMPAQ Presario 1685 laptop (at least that's what I tested it on). The reason for this is because the DVD drive conflicts with the cd-writer and the 'Hard Disk Controller' driver needs to be updated.

There are two solutions to this problem:

solution 1
A quick way to fix this is by desabling the DVD drive when recording by following the following steps (in win 98):
  1. Go to Control Panel
  2. Click System
  3. Select the 'device manager' tab
  4. Select 'Hard Disk Controller'
  5. Select 'Ali Bus Master PCI to IDE Controller'
  6. Click on the 'properties' button
  7. Select 'Settings'
  8. From the 'Dual IDE Channel Settings' option list select 'Only Primary IDE Channel enabled'
  9. Click OK and follow on-screen instructions to reboot the system

NOTE: Remember to change your settings back after recording to have your DVD running normal again.
solution 2
If you thought that was painful, wait till you see what's coming... well it's not that bad, it just gets your DVD working in conjunction with your cd-writer plus m820e. This step requires you to update the driver of your Ali controller. NOTE: For this section make sure that there are no CD ROM driver references in the autoexec.bat nor the config.sys
  1. visit: http://www.acerlabs.com/eng/support/driver.htm
  2. Click on the 'download' under 'IDE Driver ver.3.50' (NOTE: this driver works fine with the M5229)
  3. Extract the file into 'c:\windows\temp' (a folder called 'win9x' is created within this folder)
  4. Go to 'c:\windows\temp\win9x' and open the file 'Alihdd.inf' in a text editor
  5. Within 'Alihdd.inf' Change the line
    from: 'HKLM,SOFTWARE\ALi\M5229,Mode,1,0,0,0,0'
    to: 'HKLM,SOFTWARE\ALi\M5229,Mode,1,0,0,1,1'
  6. Run setup and then reboot the system.
  7. If you your windows doesn't start do the following:

    a) start i 'safe mode' (hit the 'F8' key right before the windows logo appears)
    b) go to folder 'c:\windows\system\iosubsys' and rename
    from: 'Trueffs.pdr'
    to: 'Trueffs.pdr.old'
    c) now rename:
    from: 'Esdi_506.pdr'
    to: 'Trueffs.pdr'

    Reboot and if problems persist follow these steps:

  8. go to folder 'c:\windows\system\iosubsys'

  9. rename:
    from: 'IDECDVSD.vxd'
    to: 'IDECDVSD.hp'
  10. rename:
    from: 'Drvwcdb.vxd'
    to: 'Drvwcdb.hp'
  11. rename:
    from: 'Torisan3.vxd'
    to: 'Torisan3.hp'
If problem still persists call HP tech support at: 970-635-1500

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