Supermicro SuperO X8DTL-3 User Manual page 77

Chapter 4: AMI BIOS
PCI Latency Timer
This feature sets the latency Timer for each PCI device installed on a PCI bus.
Select 64 to set the PCI latency Timer to 64 PCI clock cycles. The options are 32,
64, 96, 128, 160, 192, 224 and 248.
PCI IDE BusMaster
When enabled, the BIOS uses PCI bus mastering for reading/writing to IDE drives.
The options are Disabled and Enabled.
PCI-Exp. I/O Performance
Some add-on cards perform faster with the coalesce feature, which limits the pay-
load size to 128 Bytes. Other programs may perform better with a payload size of
256 Bytes which inhibits the coalesce feature. Please refer to your add-on card user
guide for the desired setting. The options are 128 Bytes and 256 Bytes.
Slot 1 PCI 33MHz, Slot 2 PCI 33MHz, Slot 3 PCIE x4 in X8 Slot, Slot 4 PCIE
x8, Slot 5 PCIE x4 in x8 Slot, Slot 6 PCIE x8 in x16 Slot
This feature allows you to Enable or Disable any of the PCI slots. The options
are Enable and Disable.
Load Onboard LAN1 Option ROM/Load Onboard LAN2 Option ROM
Select Enabled to enable Onboard LAN1 or LAN2 Option ROM. This is to boot
computer using a network interface. The options are Enabled and Disabled.
Boot Graphics Adapter Priority
This option allows the user to specify which graphics controller to be used as the
primary boot device. The options are Onboard VGA and Other.

Super IO Device Confi guration
Serial Port1 Address/ Serial Port2 Address
This option specifi es the base I/O port address and the Interrupt Request address
of Serial Port 1 and Serial Port 2. Select Disabled to prevent the serial port from
accessing any system resources. When this option is set to Disabled, the serial port
physically becomes unavailable. Select 3F8/IRQ4 to allow the serial port to use 3F8
as its I/O port address and IRQ 4 for the interrupt address. The options for Serial
Port1 are Disabled, 3F8/IRQ4, 3E8/IRQ4, 2E8/IRQ3. The options for Serial Port2
are Disabled, 2F8/IRQ3, 3E8/IRQ4, and 2E8/IRQ3.
Serial Port 2 Attribute
This feature allows the user to set Serial Port 2 as a normal serial port or a virtual
COM port for Serial-Over-LAN (SOL). The options are SOL and COM.
4-15