Siemens SIMATIC Panel PC 870 Equipment Manual page 58

Configuring the Computing Unit in the BIOS SETUP
Multi-Sector Transfer
The entry in the Multi-Sector Transfer box defines the number of blocks (sectors)
transferred per interrupt. The value depends on the drive and should be set only
by setting the Type field to Auto.
Disabled
2,4,8,16 Sectors
LBA Mode Control
If the LBA Mode Control field is set to Enabled, the system supports hard disk
capacities greater than 528 Mbytes. The value depends on the drive and should
be set only by setting the Type field to Auto.
32 Bit I/O
The setting in the 32 Bit I/O field defines the mode of access to the drive:
Disabled
Enabled
Transfer Mode, Ultra DMA Mode
The settings in these fields define the interface's data transfer rate. The value
depends on the drive and should be set only by setting the Type field to Auto.
Press ESC to exit the submenu.
5-6
16-bit access
32-bit access (default)
Panel PC 870 Computing Unit Equipment Manual
Edition 12/01