Computer Hardware User Manual

Chapter 4 BIOS Setup Description
68 Reference Manual COM 830
Primary/Secondary IDE Master/Slave Submenu
Feature Options Description
Device Hard Disk
ATAPI CDROM
Displays the type of drive detected. The 'grayed-out' items
below are the IDE disk drive parameters taken from the
firmware of the IDE disk.
Vendor no option Manufacturer of the device.
Size no option Total size of the device.
LBA Mode supported
not supported
Shows whether the device supports Logical Block
Addressing.
Block Mode number of sectors Block mode boosts IDE performance by increasing the
amount of data transfered. Only 512 byte of data can be
transfered per interrupt if block mode is not used. Block
mode allows transfers of up to 64 kB per interrupt.
PIO Mode 0, 1, 2, 3, 4 IDE PIO mode programs timing cycles between the IDE
drive and the programmable IDE controller. As the PIO mode
increases, the cycle time decreases.
Async DMA no option This indicates the highest Asynchronous DMA Mode that is
supported.
Ultra DMA no option This indicates the highest Synchronous DMA Mode that is
supported.
S.M.A.R.T no option Self-Monitoring Analysis and Reporting Technology protocol
used by IDE drives of some manufacturers to predict drive
failures.
Type Not Installed
Auto
CD/DVD
ARMD
Sets the type of device that the BIOS attempts to boot from
after the POST has completed.
Not Installed prevents the BIOS from searching for an IDE
disk.
Auto allows the BIOS to auto detect the IDE disk drive type.
CD/DVD specifies that an IDE CD/DVD drive is attached.
The BIOS will not attempt to search for other types of IDE
disk drives.
ARMD specifies an ATAPI Removable Media Device. This
includes, but is not limited to ZIP and LS-120.
LBA/Large
Mode
Disabled
Auto
Set to AUTO to let the BIOS auto detect LBA mode control.
Set to Disabled to prevent the BIOS from using LBA mode.
Block
(Multi-Sector
Transfer)
Disabled
Auto
Set to AUTO to let the BIOS auto detect device support for
multi sector transfer. The data transfer to and from the device
will occur multiple (the number of sectors, see above) sectors
at a time.
Set to Disabled to prevent the BIOS from using block mode.
The data transfer to and from the device will occur one sector
at a time.
PIO Mode Auto
0, 1, 2, 3, 4
Set to AUTO to let the BIOS auto detect the supported PIO
mode.