Advantech ARK-2250R User Manual page 46

Railway fanless system
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3.2.3.1
System Agent & PCH Configuration
Feature
VT-d
Above 4GB MMIO
BIOS assignment
ARK-2250R User Manual
Option
Disable
Enable
Disable
Enable
36
Description
Enable/Disable VT-d (Intel® Virtualiza-
tion Technology for Directed I/O)
Enable/Disable above 4GB Memory-
Mapped IO BIOS assignment This is
disabled automatically when Aperture
Size is set to 2048MB.

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