Advantech ARK-3400, User Manual, Page: 43 / 87

31 ARK-3400 User Manual
Chapter 3
B
IOS settings
This item allows the video BIOS to be cached to allow faster execution and bet-
ter performance.
„ Memory Hole At 15 M-16 M [Disabled]
This item reserves 15MB-16MB memory address space to ISA expansion cards
that specifically require the setting. Memory from 15MB-16MB will be unavail-
able to the system because only the expansion cards can access memory in
this area.
„ PCI Express Root port Func [Press Enter]
This item allows the user to adjust PCIE port on, off, or auto.
„ PEG/Onboard VGA Control [Auto]
This item allows the user to select whether onboard graphics processor or the
PCI card.
„ On-Chip Frame Buffer Size [8 MB]
This item allows the user to adjust on-chip graphics of memory buffer.
„ DVMT Mode [DVMT]
Intel's Dynamic Video Memory Technology (DVMT) takes that concept further
by allowing the system to dynamically allocate memory resources according to
the demands of the system at any point in time. The key idea in DVMT is to
improve the efficiency of the memory allocated to either system or graphics pro-
cessor.
The BIOS feature that controls all this is the DVMT Mode BIOS feature. It
allows you to select the DVMT operating mode.
Fixed The graphics driver will reserve a fixed portion of the system
memory as graphics memory. This ensures that the graphics
processor has a guaranteed amount of graphics memory but the
downside is once allocated, this memory cannot be used by the
operating system even when it is not in use.
DVMT The graphics chip will dynamically allocate system memory as
graphics memory, according to system and graphics require
ments. The system memory is allocated as graphics memory
when graphics-intensive applications are running but when the
need for graphics memory drops, the allocated graphics memory
can be released to the operating system for other uses.
BOTH The graphics driver will allocate a fixed amount of memory as
dedicated graphics memory, as well as allow more system
memory to be dynamically allocated between the graphics
processor and the operating system.
„ DVMT/FIXED Memory Size [128 MB]
This item allows the user to adjust DVMT/FIXED graphics memory size.
„ Panel Type [1024 x 768 LVDS]
These fields allow you to select the LCD Panel type. The default values for
these ports are:
– 640 x 480 LVDS
– 800 x 600 LVDS
– 1024 x 768 LVDS
– 1280 x 1024 LVDS
– 1400 x 1050 RB LVDS(LFP1)
– 1400 x 1050 Non-RB (LFP1)