Advantech ARK-3400, User Manual, Page: 72 / 87

ARK-3400 User Manual 60
B.1 Introduction
The ARK-3400 has an onboard Intel 910GMLE chipset for its PCIE controller. It sup-
ports LVDS & DVI displays and conventional analog CRT monitors with 128 MB
frame buffer shared with system memory. The VGA controller can drive CRT displays
with resolutions up to 1600 x 1200 @ 85 Hz and 2048 x 1536 @ 75 Hz and support
24/48 bits LVDS display mode up to UXGA panel resolution with frequency range
from 25 MHz to 112 MHz.
Figure B.1 BIOS VGA setting
B.2 LVDS
Low-voltage differential signaling, or LVDS, is an electrical signaling system that can
run at very high speeds over inexpensive twisted-pair copper cables. It was intro-
duced in 1994, and has since become very popular in computers, where it forms part
of very high-speed networks and computer buses.
The ARK-3400 support 24/48 bits LVDS display mode up to UXGA panel resolution
with frequency range from 25-MHz to 112-MHz. Refer to Chapter 3 “BIOS Operation”
to find out how to change this setting. The default setting of “Boot Display” is “CRT”.
B.3 Dual Display
A multiple monitor setup increases the net display area of a system and can be an
inexpensive way of improving computer usage. Resulting display area after upgrad-
ing to a multi-monitor configuration is limited by the size, resolution and number of
monitors. The monitors used for multi-monitor can be different types (CRT+LFP or
CRT+DVI) and sizes. The operating system manages the monitors' resolutions inde-
pendently.
B.3.1 Display modes
„ Clone mode
Initially on PCs, the multiple output interface was designed to display the same image
on all output interfaces (sometimes referred to as mirroring or cloning). This reflected
the fact that these video cards were originally used in presentations where the user
typically had his or her face to the audience with a duplicate of the projected image
available to the presenter.