B&R Industries Provit 5000, Руководство пользователя, Страница: 253 / 400

252 Provit 5000 User’s Manual
Software • BIOS System for System Units with Socket 7 (ZIF)
If you do not want to select the AUTO drive, there are some other options for
selecting the drive type below:
• Match the specifications of your installed IDE hard disk or silicon disk with the
predefined values for drive types 1 through 45. If one of the predefined drive
types is the same as your hard disk or silicon disk then you can select this type.
• Select USER and enter the corresponding values into each drive parameter
field.
• Use the IDE HDD Auto Detection function in the Setup Main Menu (see section
"IDE HDD Auto Detection");
Here is a brief explanation of drive specifications:
Type
BIOS contains a table of predefined drive types with certain specifications. Drives
whose specifications do not accommodate any pre-defined type are classified as
USER.
Size
Disk drive capacity (approximate). Note that this size is usually slightly greater
than the size of a formatted disk given by a disk-checking program.
Cyls Number of cylinders
Head Number of heads
Precomp Write Precompensation Cylinder
Landzone Landing zone
Sector Number of sectors
Mode AUTO BIOS automatically determines the optimal mode.
Normal The following maximum values are supported:
Number of cylinders= 1024
Number of heads = 16
Number of sectors = 64
Large For drives that do not support LBA and have more than
1024 cylinders.
LBA Logical Block Addressing: For drives with more than
1024 cylinders. During drive accesses, the IDE
controller transforms the data address described by
sector, head, and cylinder number into a physical block
address. This results in a significantly improved data
transfer rate.