User`s manual

User’s Manual 23
․CPU to PCI Write Buffer
When enabled, up to four D words of data can be written to the PCI bus without
interrupting the CPU. When disabled, a write buffer is not used and the CPU
read cycle will not be completed until the PCI bus signals is ready to receive the
data.
․PCI Delay Transaction
The chipset has an embedded 32-bit posted write buffer to support delay
transaction cycles. Select Enabled to support compliance with PCI specification
version 2.2.
․OnChip USB
Select “Enabled” if your system contains a Universal Serial Bus (USB) controller
and you have a USB peripheral. The “Assign IRQ for USB” has to be set to
Enabled on “PnP/PCI Configuration” (when the USB be used.)
․Onboard LAN Boot ROM
The default setting is enabled or disabled LAN boot up function.
3-4. Integrated Peripherals
The IDE hard drive controllers support up to two separate hard drives. These drives
have a master/slave relationship that is determined by the cabling configuration
used to attach them to the controller. Your system supports two IDE controllers--a
primary and a secondary--so you can install up to four separate hard disks.
Integrated Peripherals
Item Available Options:
OnChip IDE Device Press Enter
Onboard Device Press Enter
Super IO Device Press Enter
Onboard Serial Port 3 3E8
Serial Port 3 Use IRQ IRQ5
Onboard Serial Port 4 2E8
Serial Port 4 Use IRQ IRQ5
Onboard Serial Port 5 4F8
Serial Port 5 Use IRQ IRQ5
Onboard Serial Port 6 4E8
Serial Port 6 Use IRQ IRQ5
24 The ENDAT-4066i System Board
OnChip IDE Device
Item Available Options:
IDE HDD Block Mode Enabled
On-Chip Primary PCI IDE Enabled
IDE Primary Master PIO Press Enter
IDE Primary Slave PIO Auto
IDE Primary Master UDMA Auto
IDE Primary Slave UDMA Auto
On-Chip Secondary PCI IDE Enabled
IDE Secondary Master PIO Auto
IDE Secondary Slave PIO Auto
IDE Secondary Master UDMA Auto
IDE Secondary Slave UDMA Auto
On-Chip Serial ATA Auto
Serial ATA Port0 Mode SATA0 master
Serial ATA Port1 Mode SATA1 master
․IDE HDD Block Mode
Block mode is also called block transfer, multiple commands, or multiple sectors
read/write.
․IDE Primary Master/Slave PIO and IDE Secondary
Master/Slave PIO
The four IDE PIO (programmed Input/Output) fields let you set a PIO mode (0-4)
for each IDE device that the internal PCI IDE interface supports. Modes 0
through 4 provide successively increased performance. In Auto mode, the
system automatically determines the best mode for each device.
․IDE Primary Master/Slave UDMA and IDE Secondary
Master/Slave UDMA
These fields allow you to set the Ultra DMA in use. When Auto is selected, the
BIOS will select the best available option after checking your hard drive or
CD-ROM.