Customizing Device-Driver Configuration Settings
This section contains optional configuration information for the 6X Internal IDE DVD-ROM Drive Option Diskette device drivers for Windows 3.x, DOS, OS/2 and Windows 98 and 95. Use the online help during the installation and refer to the READ.ME file on the 6X Internal IDE DVD-ROM Drive Option Diskette for additionalinformation.
Note: After you install the 6X Internal IDE DVD-ROM Drive Option Diskette, you can use a DOS session in Windows 3.x, DOS, OS/2, Windows 98, and Windows 95 to access the drive as a CD-ROM drive.
Requirements vary, and you might need to customize the configuration that the CDSETUP program installed on the computer.
This section provides information and describes parameters that you might need to change or add for the installation.
Changing device-driver parameters for DOS and Windows
Most computers function adequately with the default settings for the IBMIDECD.SYS device driver file.
However, there are some parameters that can be changed if necessary.
This section explains the function of each parameter.
Use a text editor to modify the appropriate line in the CONFIG.SYS file.
For the IBMIDECD.SYS device driver file, the line in CONFIG.SYS is in the following format:
DEVICE=[drive:][path]IBMIDECD.SYS /D:device name
[/P:xxx,yy] [/A:n] [/U:n]
[/L:xx] [/T:n] [/I:n]
(Do not truncate the actual device driver entry.
Place the complete DEVICE=statement on one line in the CONFIG.SYS file.)
The following parameter specifies the location (drive and directory) and name of the device driver file.
Use the following options to configure the device driver.
This parameter specifies the device name of the CD-ROM drive. This name must be identical to the device name specified in the MSCDEX.EXE parameters, as shown:
This parameter specifies the address and interrupt level of the port to which the IDE CD-ROM drive is connected.
The device driver automatically checks the industry standard primary IDE port
(address 1F0, interrupt 14) and secondary IDE port (address 170, interrupt 15).
The /P parameter is not needed if the CD-ROM drive is connected to either of these ports.
However, if the computer (or IDE adapter) uses different IDE port addresses or interrupts, you must use this option.
Refer to the instructions that come with the computer or IDE adapter for more information about the configuration of the computer or adapter.
xxx is the base address of the IDE port.
1F0 for the primary IDE port (Port 1)
170 for the secondary IDE port (Port 2)
yy is the interrupt (IRQ) level.
14 for the primary IDE port (Port 1)
15 or 10 for the secondary IDE port (Port 2)
When four drives are connected, for example, the syntax in the CONFIG.SYS file would be:
DEVICE=C:IBMIDECD.SYS /D:IBMCD1 /P:1F ,14 /P:17 ,15 /P:1E ,12 /P:16 ,1
(Do not truncate the actual device driver entry. Place the complete DEVICE=statement on one line in the CONFIG.SYS file.)
This parameter specifies the audio play mode.
For a stereo CD, you can type /A:0 or /A:1.
For a monaural CD (left or right channel only), type /A:1 to play the monaural audio signal from the right and left channels.
The default is n=0.
This parameter specifies if the computer initializes with the CD tray unlocked or locked.
/U:0 initializes with the tray unlocked.
/U:1 initializes with the tray locked.
The default is n=0. You might use this parameter if you want to secure the CD in the drive.
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This parameter specifies the message language, where xx designates the language.
English (default, does not need to be specified)
This parameter specifies time delays to be built into the IDE read loop.
Use this parameter only in computers that do not support the IOCHRDY signal on the IDE bus, and in computers that read from the IDE port faster than the CD-ROM can provide data.
This parameter is usually not required in most computers.
n is a relative timing parameter that depends on microprocessor speed.
When the value of n increases, the drive data-transfer rate decreases.
Valid values for n are 0 through 99.
The default is n=0, and the /T parameter is not required.
This parameter enables interrupt sharing. If n=1, interrupt sharing is enabled.
If n=0, interrupt sharing is disabled. The default is n=0.
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