BIOS Configuration
46
Primary IDE Master/Slave,
Secondary IDE Master/
Slave, Third IDE Master,
and Fourth IDE Master
These settings enable you to set the parameters of Primary IDE Master/Slave,
Secondary IDE Master/Slave, and Third and Fourth IDE Master slots. Press Enter to
view and set detailed options. The items included in the submenu are:
Type – Select the type of device connected to the system. The options are Not
Installed, Auto, CD/DVD and ARMD.
LBA/Large Mode – LBA (Logical Block Addressing) is a method of addressing data
on a disk drive. In the LBA mode, the maximum drive capacity is 137 GB. For drive
capacities over 137 GB, your system must be equipped with a 48-bit LBA mode
addressing. If not, contact your manufacturer or install an ATA/133 IDE controller
card that supports 48-bit LBA mode. The options are Disabled and Auto.
Block (Multi-Sector Transfer) – Block Mode boosts the IDE drive performance by
increasing the amount of data transferred. Only 512 bytes of data can be trans-
ferred per interrupt if Block Mode is not used. Block Mode allows transfers of up
to 64 KB per interrupt. Select Disabled to allow data to be transferred from and to
the device one sector at a time. Select Auto to allow data to be transferred from
and to the device multiple sectors at a time if the device supports it. The options
are Auto and Disabled.
PIO Mode – The IDE PIO (Programmable I/O) Mode programs timing cycles
between the IDE drive and the programmable IDE controller. As the PIO mode
increases, the cycle time decreases. The options are Auto, 0, 1, 2, 3, and 4.
Select Auto to allow the AMI BIOS to automatically detect the PIO mode.
Use this value if the IDE disk drive support cannot be determined.
Select 0 to allow the AMI BIOS to use PIO mode 0. It has a data transfer
rate of 3.3 MBs.
Select 1 to allow the AMI BIOS to use PIO mode 1. It has a data transfer
rate of 5.2 MBs.
Select 2 to allow the AMI BIOS to use PIO mode 2. It has a data transfer
rate of 8.3 MBs.
Select 3 to allow the AMI BIOS to use PIO mode 3. It has a data transfer
rate of 11.1 MBs.
Select 4 to allow the AMI BIOS to use PIO mode 4. It has a data transfer
bandwidth of 32-Bits. Select Enabled to enable 32-Bit data transfer.
Table 46. IDE/SATA Configuration submenu (Continued)
BIOS item Usage
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