SGI Rackable C2112-4G3 Guía de usuario Pagina 90

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7: BIOS
SATA IDE Combined Mode
This setting allows you to Enable or Disable the SATA IDE combined mode.
PATA Channel Configuration
This allows you to set PATA channel configuration. Options include SATA as Primary or SATA
as secondary.
Primary/Secondary/Third/Fourth IDE Master/Slave
LBA/Large Mode
LBA (Logical Block Addressing) is a method of addressing data on a disk drive. The options are
Disabled and Auto.
Block (Multi-Sector Transfer)
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. Select "Disabled" to allow the data to be transferred from
and to the device one sector at a time. Select "Auto" to allows the data transfer from and to the
device occur multiple sectors at a time if the device supports it. The options are Auto and
Disabled.
PIO Mode
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 BIOS to auto detect the PIO mode.
Use this value if the IDE disk drive support cannot be determined. Select 0 to allow BIOS to use
PIO mode 0, which has a data transfer rate of 3.3 MBs. Select 1 to allow BIOS to use PIO mode
1, which has a data transfer rate of 5.2 MBs. Select 2 to allow BIOS to use PIO mode 2, which has
a data transfer rate of 8.3 MBs. Select 3 to allow BIOS to use PIO mode 3, which has a data
transfer rate of 11.1 MBs. Select 4 to allow BIOS to use PIO mode 4, which has a data transfer
rate of 16.6 MBs. This setting generally works with all hard disk drives manufactured after 1999.
For other disk drives, such as IDE CD-ROM drives, check the specifications of the drive.
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