Advanced Chipset Features - Acer Aspire X1920 Service Manual

Advanced Chipset Features

Field
Intel EIST
Intel XD Bit
Intel VT
Memory Hole
Remapping
Video Memory
Size
DVMT Memory
Size
Aspire AX1920 Service Guide
Description
Select whether to enable the Enhanced Intel SpeedStep Technology. EIST
allows a compliant OS to dynamically adjust the processor voltage and core
frequency based on system usage. This can result in decreased average
power consumption and decreased average heat production.
Note: After enabling EIST in BIOS Setup, you need to enable it on your
operating system as well. Consult your OS documentation for related
instructions.
Select whether to enable the Intel Execute Disable Bit Technology. XD Bit is
a hardware-based security feature that can reduce exposure to viruses and
malicious-code attacks and prevent harmful software from executing and
propagating on the computer or network.
Select whether to enable the Intel Virtualization Technology. VT allows a
single platform to run multiple operating systems in independent partitions.
When enabled, some or all of the memory between the 2 GB and 4 GB limits to
addresses above 4 GB. This is a workaround for the PCI hole or PCI memory
hole which is a limitation of 32-bit hardware and 32-bit operating systems that
causes a computer to appear to have less memory available than is physically
installed.
Note:
This feature is useful for systems running on 64-bit OS and those 32-bit
systems that support the Physical Address Extension method.
Select the amount of system memory used by the internal graphics device.
This setting is only available for WinXp.
Value
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
32MB
64MB
128MB
256MB
128MB
Maximum
13