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100 Appendix C: Matrox 4Sight GPm (Ivy Bridge) BIOS reference
Item
Options
IGD - DVMT Pre-Allocated
64 Mbytes*
0 - 1023 Mbytes
IGD - DVMT Size
128 Mbytes
256 Mbytes
Max*
Item
Options
BIOS Support
Disabled
Enabled*
UEFI Only
XHCI Pre-Boot Driver
Disabled
Enabled*
XHCI
Disabled
Enabled
Auto*
Smart Auto
Meaning
This item allows you to select the amount of memory that will be reserved solely for the integrated graphics
controller, in Mbytes.
This item allows you to select the maximum amount of display memory that can be accessed by the
integrated graphics controller, in Mbytes.
The amount of display memory required by the display driver will vary. The display driver will request
additional memory from the operating system as required, and when the display driver is finished with this
memory, it will be freed and returned to the operating system.
Configuration submenu
The Configuration submenu allows you to configure settings for the USB ports
of the Matrox 4Sight GPm unit.
Meaning
This item allows you to set whether Matrox 4Sight GPm can use a USB device.
By selecting Disabled, the unit will not be able to use a USB device regardless which boot mood is used
(such as, normal, UEFI, or TDP Configurable).
By selecting Enabled, the BIOS will be able to support a USB device regardless which boot mood is used
(such as, normal, UEFI, or TDP Configurable).
By selecting UEFI Only, the BIOS will be able to support a USB device only when the UEFI boot mode is used.
This item should not be changed.
❖
This item allows you to enable or disable the driver for the USB xHCI controller. xHCI is the controller for the
USB 3.0 ports on your Matrox 4Sight GPm.
This item allows you to configure the extensible host controller interface (xHCI). This item affects all USB 3.0
ports. There are 4 USB 3.0 ports.
By selecting Disabled, the USB ports will always use EHCI. Selecting Disabled overrides the HS Port Switch
item selection.
By selecting Enabled, the USB ports will always use xHCI.
By selecting Auto, the USB ports will use EHCI if the XHCI Pre-Boot Driver item is set to Disabled, or before
the driver has a chance to load (for example, during a reboot). Otherwise, the USB ports will use xHCI.
By selecting Smart Auto, the USB ports will use xHCI unless the xHCI driver is uninstalled. For
Matrox 4Sight GPm, selecting Smart Auto is the same as selecting Enabled.
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