Compaq Deskpro ap230 Hardware Reference Manual page 39

Computer Setup
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Storage
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Support for Computer Setup options may vary depending on your specific hardware configuration.
B-6 Computer Setup
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Option
Device Configuration
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Description
Translation Mode (IDE disks only)
Lets you select the translation mode to be used for
the device. This enables the BIOS to access disks
partitioned and formatted on other systems and may
be necessary for users of older versions of Unix (e.g.,
SCO Unix version 3.2). Options are Bit-Shift, LBA
Assisted, User, and None.
CAUTION: Ordinarily, the translation mode selected
automatically by the BIOS should not be changed. If the
selected translation mode is not compatible with the
translation mode that was active when the disk was
partitioned and formatted, the data on the disk will be
inaccessible.
Translation Parameters (IDE Disks only)
Allows you to specify the parameters (logical
cylinders, heads, and sectors per track) used by the
BIOS to translate disk I/O requests (from the
operating system or an application) into terms the
hard drive can accept. Logical cylinders may not
exceed 1024. The number of heads may not exceed
256. The number of sectors per track may not
exceed 63. These fields are only visible and
changeable when the drive translation mode is set to
User.
Multisector Transfers (IDE ATA devices only)
Specifies how many sectors are transferred per multi-
sector PIO operation. Options (subject to device
capabilities) are Disabled, 8, and 16.
Quiet Drive (available on select drives only)
Performance
Allows the drive to operate at maximum
performance.
Quiet
Reduces noise from the drive during operation.
When set to Quiet, the drive will not operate at
maximum performance.
If the drive does not support Quiet mode, the Quiet
Drive option will not be displayed.
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