SUPER MICRO Computer MBDX7DA3O user manual Emulated IRQ Solutions, PCI-Exp. I/O Performance

X7DA3+ User's Manual

Emulated IRQ Solutions

When Enabled, the Emulated IRQ Scheme will allow PCI devices to run on legacy operating systems that use the MSI mechanism to generate INTX compatible interrupts. The options are Disabled and Enabled.

PCI-Exp. I/O Performance

Some add-on cards perform faster with the coalesce feature, which limits the payload size to 128 Bytes; while others 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 Payload (256 Bytes) and Coalesce Enabled (128 Bytes).

PCI Parity Error Forwarding

The feature allows SERR and PERR errors detected in the PCI slots to be sent (forwarded) to the BIOS DMI Event Log for the user to review. The options are Enabled and Disabled.

ROM Scan Ordering

This feature allows the user to decide which Option ROM to be activated fi rst. The options are Onboard first and Add-On fi rst.

PCI Fast Delayed Transaction

Enable this function to improve DMA data transfer rate for a PCI 32-bit multimedia card. The options are Enable and Disabled.

Reset Configuration Data

If set to Yes, this setting clears the Extended System Confi guration Data- (ESCD) area. The options are Yes and No.

Frequency for PCI-X#1/Mass (Mass Storage)

This option allows the user to change the bus frequency for the devices installed in the slot indicated. The options are Auto, PCI 33 MHz, PCI 66 MHz, PCI-X 66 MHz, PCI-X 100 MHz, and PCI-X 133 MHz.

Frequency for PCI-X#2-#3

This option allows the user to change the bus frequency for the devices installed in the slot indicated. The options are Auto, PCI 33 MHz, PCI 66 MHz, PCI-X 66 MHz, PCI-X 100 MHz, and PCI-X 133 MHz.

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