NEXCOM OPPC 1520T User Manual

Page 90

Chapter 4: BIOS Setup

OPPC 1520T/1720T User Manual

Type

Selects the type of IDE drive connected to the system.

LBA/Large Mode

Auto

The LBA mode will automatically be enabled, that is, if the
LBA mode was not previously disabled.

Disabled Disables the LBA mode.

Block (Multi-Sector Transfer)

Auto

Data transfer to and from the device occurs multiple sectors at
a time.

Disabled Data transfer to and from the device occurs one sector at a

time.

PIO Mode

Selects the data transfer mode. PIO means Programmed Input/Output.
Rather than have the BIOS issue a series of commands to effect a transfer
to or from the disk drive, PIO allows the BIOS to tell the controller what
it wants and then let the controller and the CPU perform the complete
task by themselves. Your system supports five modes, 0 (default) to 4,
which primarily differ in timing. When Auto is selected, the BIOS will se-
lect the best available mode after checking your drive.

Auto

The BIOS will automatically set the system according to your
hard disk drive’s timing.

Mode 0-4 You can select a mode that matches your hard disk drive’s

timing. Caution: Do not use the wrong setting or you will
have drive errors.

DMA Mode

Selects the DMA mode.

Auto

Automatically detects the DMA mode.

SWDMAn SingleWord DMAn.
MWDMAn MultiWord DMAn.
UDMAn

Ultra DMAn.

S.M.A.R.T.

The system board supports SMART (Self-Monitoring, Analysis and Report-
ing Technology) hard drives. SMART is a reliability prediction technology
for ATA/IDE and SCSI drives. The drive will provide sufficient notice to
the system or user to backup data prior to the drive’s failure. SMART is
supported in ATA/33 or later hard drives. The options are Auto (default),
Enabled and Disabled.

32Bit Data Transfer

Enables or disables 32-bit data transfer.

IDE Detect Time Out (Sec)

Selects the time out value for detecting ATA/ATAPI devices.

This manual is related to the following products:

OPPC 1720T