Supero X7DWN+, User Manual

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Chapter 4: BIOS
4-11
DOS or Other (for Unix, Novelle NetWare and other operating systems).
Advanced Chipset Control
Access the submenu to make changes to the following settings.
Warning
: Take caution when changing the Advanced settings. An Incor-
rect value, a very high DRAM frequency or an incorrect DRAM timing may
cause system to become unstable. When this occurs, reset the setting to
the default setting.
SERR Signal Condition
This setting specifi es the ECC Error conditions that an SERR# is to be asserted.
The options are None, Single Bit , Multiple Bit, and Both.
Clock Spectrum Feature
If Enabled, the BIOS will monitor the level of Electromagnetic Interference caused
by the components and will attempt to decrease the interference whenever needed.
The options are Enabled and Disabled .
Intel VT for Direct I/O (VT-d)
Select Enable to enable the functionality of the Intel Virtualization Technology for
Direct I/O VT-d support by reporting the I/O device assignment to VMM through the
DMAR ACPI Tables. This feature offers fully-protected I/O resource-sharing across
the Intel platforms, providing the user with greater reliability, security and availability
in networking and data-sharing. The settings are Enabled and Disabled . Press the
<Enter> key to enter the submenu. The following items will appear:
VT-d for Port 0 (ESI)
VT-d for Port 1
VT-d for Port 3
VT-d for Port 5
VT-d for Port 7
VT-d for Port 9
Select Enable to enable Intel VT-d support for Port 0(ESI), Port 3, Port 5, Port
7, Port 9 through using DRHD structures located in the ACPI Tables.
4GB PCI Hole Granularity
This feature allows you to select the granularity of PCI hole for PCI slots. If MTRRs
are not enough, this option may be used to reduce MTRR occupation. The options
are: 256 MB , 512 MB, 1GB and 2GB.