ATI Technologies Nexus GA User Manual page 30

I am using a monitor adapter to supply the sense code, but I
only get one resolution, even though I have a multiple scan
monitor. Why?
•
I have a monitor with three BNC connectors. Why won't it
work with my Nexus GA card?
•
I have a monitor with five BNC connectors. Why won't it
work with my Nexus GA card?
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•
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Page 26
When you use a monitor adapter, it sends a single fixed
frequency sync signal to the monitor. If your adapter
provides multiple sense codes, adjust it for another
resolution, and restart your computer. If you monitor
adapter doesn't allow you to adjust the resolution sense
code, you should purchase an adapter that does. Contact an
Apple retailer for availability of adjustable monitor
adapters.
Monitors that only have three BNC connectors require a
synchronization ("sync") signal to be sent down the green
line. This is called Sync-on-Green (SOG). ATI accelerator
cards do not output an SOG signal. Adapters are available for
your Mac OS computer to convert the separate sync signal
from the ATI card to an SOG signal for the monitor. Check
with an Apple retailer for availability of SOG adapters.
For a cable with five BNC connectors, ensure that all the
cables are all connected to the monitor. If only the red,
green, and blue cables are connected, the monitor is
expecting a Sync-on-Green (SOG) signal.
Some monitors may have a switch to set the monitor to
either SOG or separate sync. If the switch is set to SOG, the
monitor will show a scrambled display. Setting the switch
to separate/composite sync may resolve the problem.
A number of BNC cables, even though they are designed
for Mac OS computers, do not supply the sense code
needed by the graphics card. Using an adapter which sets
the appropriate sense code should solve the problem.