Chapter 4 – DFI OT905-B series User Manual

Page 36

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Chapter 4 BIOS Setup

Chapter 4

IDE Configuration

This section is used to configure IDE functions.

Onchip SATA Type

Native IDE /n RAID /n AHCI /n AHCI /n Legacy IDE /n IDE -> AHCI /n HyperFlash.

Enable or Disable Serial
ATA.

IDE Confi guration

Onchip SATA channel

Onchip SATA type

SATA Port0
SATA Port1
SATA Port2
SATA Port3

Advanced

[Enabled]

[IDE]

Not Present
Not Present
Not Present
Not Present



Select Screen



Select Item

Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous

Values

F3: Optimized

Defaults

F4: Save & Exit
ESC: Exit

USB Configuration

This section is used to configure USB.

Legacy USB Support

Enabled

Enables legacy USB.

Auto

Disables support for legacy when no USB devices are connected.

Disabled

Keeps USB devices available only for EFI applications.

EHCI Hand-off

This is a workaround for OSes that does not support EHCI hand-off. The EHCI own-

ership change should be claimed by the EHCI driver.

Port 60/64 Emulation

Enables I/O port 60h/64h emulation support. This should be abled for the complete

USB keyboard legacy support for non-USB aware OSes.

Device reset time-out

Selects the USB mass storage device start unit command timeout.

Enables Legacy USB
support. AUTO option
disables legacy support if
no USB devices are
connected. DISABLE
option will keep USB
devices available only for
EFI applications.

USB Confi guration

USB Devices:
1 Keyboard, 1 Mouse

Legacy USB Support

EHCI Hand-off
Port 60/64 Emulation

USB hardware delays and time-outs:

Device reset time-out