30 VMIVME-7807/VME-7807RC Hardware Reference Manual
2.6.2 DVI Connectors
The
DVI
connector
has
twenty
‐
four
pins
that
can
accommodate
up
to
two
TMDS
links
and
the
VESA
DDC
and
EDID
services.
The
DVI
specification
defines
two
types
of
connectors
(see
Figure
1):
•
DVI
‐
Digital
(DVI
‐
D)
supports
digital
displays
only
(used
on
the
VMIVME
‐
7807/VME
‐
7807RC)
•
DVI
‐
Integrated
(DVI
‐
I)
supports
digital
displays
and
is
backward
compati
‐
ble
with
analog
displays
(not
supported)
The
VMIVME
‐
7807/VME
‐
7807RC
use
the
DVI
‐
I
connector
with
a
single
TMDS
link.
The
DVI
‐
I
interface
accommodates
a
12
‐
or
24
‐
pin
DVI
plug
connector
or
a
new
type
of
analog
plug
connector
that
uses
four
additional
pins,
plus
a
ground
plane
plug
to
maintain
a
constant
impedance
for
the
analog
RGB
signals.
2.6.3 Dual Head Video
The
VMIVME
‐
7807/VME
‐
7807RC
are
capable
of
driving
two
monitors
at
the
same
time
using
the
Intel
855GME
GMCH.
The
graphics
controller
allows
the
use
of
one
digital
monitor
connected
to
the
VMIACC
‐
0590/ACC
‐
0590RC
or
VMIACC
‐
0586/
ACC
‐
0586RC
RTMs,
routed
out
the
rear
I/O
P2
connector.
The
second
is
a
standard
SVGA
monitor
connected
to
the
front
panel
of
the
VMIVME
‐
7807/VME
‐
7807RC,
using
a
standard
DB15
connector.
Dual Head Setup
Procedure:
1.
Boot
Windows
2000.
2.
In
the
windows
desktop
right
click.
3.
When
the
menu
appears,
scroll
down
to
the
‘Graphics
Options’
and
then
click
on
‘Graphics
Properties’.
The
Intel
82852/82855GM/GME
graphics
con
‐
troller
properties
menu
will
appear.
From
this
menu
you
can
choose
the
dis
‐
play
mode
of
choice.
The
monitors
can
be
displayed
in
several
modes:
•
Monitor
Mode
‐
In
this
mode
only
the
SVGA
monitor
is
displayed.
•
Digital
Mode
‐
In
this
mode
only
the
Digital
is
displayed.
•
Dual
Display
Clone
Mode
‐
In
this
mode
both
the
SVGA
and
the
Digital
monitors
are
displayed,
with
the
desktop
the
same
on
both
monitors.
•
Extended
Desktop
Mode
‐
In
this
mode
the
two
monitors
are
displayed
as
one
desktop.
4.
After
making
your
choice
click
‘OK’
to
apply
the
changes.
NOTE
When using the Dual Head mode, the maximum resolution for each
monitor is 1600x1200 for the 855GME. Refer to manufacturer’s
documentation for the resolutions of each monitor used.