Specifications

Chapter 4 BIOS Setup Utility
ReadyBoard 800 Reference Manual 63
>IDE Configuration
• OnBoard PCI IDE Controller – [Disabled], [Primary], [Secondary], or [Both]
This item specifies the IDE channels used by the onboard PCI IDE controller.
♦ If [Disabled] is selected, the ReadyBoard 800 is prevented from using either of the onboard
IDE controllers.
♦ If [Primary] is selected, the BIOS only detects the Primary IDE channel, including both
Primary Master and Primary Slave.
♦ If [Secondary] is selected, the BIOS only detects the Secondary IDE channel, including both
Secondary Master and Secondary Slave.
♦ If [Both] is selected, both Primary and Secondary IDE channels will be detected, including
Master and Slave for each channel.
• OnBoard PCI IDE Operate Mode – [Legacy Mode] or [Native Mode]
Native mode is only used with Windows XP.
♦ Primary IDE Master – [Not Detected] or [Device type]
• Type – [Not Installed], [Auto], [CD/DVD], or [ARMD]
This field sets the type of device the BIOS attempts to boot from after the Power On Self
Test (POST) has completed.
∗ If [Not Installed] is selected, the BIOS is prevented from searching for an IDE disk
drive on the specified channel.
∗ If [Auto] is selected, the BIOS auto any detects IDE disk drives on the specified
channel. This is the default setting and should be used if an IDE hard disk drive is
attached to the specified IDE channel.
∗ If [CD/DVD] is selected, the BIOS only searches for an IDE CD-ROM or IDE DVD
device on the Primary IDE channel. The BIOS will not attempt to search for other
types of IDE disk devices on the specified channel.
∗ If [ARMD] is selected, the BIOS detects an ATAPI Removable Media Device on the
specified IDE channel. This includes, but is not limited to ZIP drives and LS-120
drives.
• LBA/Large Mode – [Disabled] or [Auto]
This field sets the LBA (Logical Block Addressing) on the IDE disk drive. In LBA mode
[Auto] the drive capacity can exceed 137 GB.
• Block (Multi-Sector Transfer) – [Disabled] or [Auto]
This field sets the block mode multi-sector transfers option and allows the BIOS to auto
detect device support for Multi-Sector Transfers on the specified channel. Block mode
boosts IDE drive performance by increasing the amount of data transferred. Only 512
bytes of data can be transferred per interrupt if block mode is not used. Block mode
allows transfers of up to 64 kB per interrupt.
∗ If [Auto] is selected, the BIOS will auto detect the number of sectors per block for
transfer from the hard disk drive to the memory. The data transfer to and from the
device will occur multiple sectors at a time.
• PIO Mode – [Auto], [0], [1], [2], [3], or [4]
This field sets the IDE PIO (Programmable I/O) mode and programs the timing cycles
between the IDE drive and the programmable IDE controller. As the PIO mode increases,
the cycle time decreases.
∗ If [Auto] is selected, the BIOS auto detects the PIO mode.