Xycom XVME-653, Manual

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Chapter 3 – BIOS Setup Menus
3-5
Table 3-2 IDE Adapter Submenu Options
Option Description
Autotype Fixed Disk Reads the hard disk parameters from the drive if you press
ENTER
. It then sets the
Type field to User and lets you edit the other fields. Do not attempt to manually set the
disk drive parameters unless instructed to do so by Xycom Application Engineering.
Type Options include 1 to 39 , User , or Auto . The 1 to 39 option fills in all remaining fields
with values for predefined disk type. User prompts you to fill in remaining fields. Auto
autotypes at each boot, displays settings in setup menus, and does not allow you to
edit the remaining fields.
Cylinders Indicates the number of cylinders on the hard drive. This information is automatically
entered if the Autotype Fixed Disk option is set.
Heads Indicates the number of read/write heads on the hard drive. This information is auto-
matically entered if the Autotype Fixed Disk option is set.
Sectors/Track Indicates the number of sectors per track on the hard drive. This information is auto-
matically entered if the Autotype Fixed Disk option is set.
Write Precomp This value is not used or required by IDE hard drives.
Multi-Sector Transfers Sets the number of sectors per block. Options are Auto , 2 , 4 , 8 , or 16 sectors. Auto
sets the number of sectors per block to the highest number supported by the drive.
LBA Mode Control Enables Logical Block Access. The default ( Disabled ) should work with most hard
drives.
32 Bit I/O Enables 32-bit communication between CPU and IDE interface.
Transfer Mode Selects the method for transferring the data between the hard disk and system mem-
ory. Available options are determined by the drive type and cable length.