3DLABS Oxygen 402 - Manual (Page 67)

Installation and User’s Guide
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Enable onboard VGA on one of the Oxygen cards. For configuration
purposes, call this the “primary” card. Install this Oxygen card in the
lower numbered PCI slot in the system. Usually this means the left slot
in desktop systems and the lower slot in tower systems. Since this card
will drive the left half of the “jumbo desktop” connect this card to the
left monitor. Make sure that this monitor supports at least 1024x768
resolution at 60 Hz.
Next, disable VGA on the second Oxygen board and install this in the
upper or right slot. This card drives the right half of the desktop and
should be connected to the right monitor. When you power up the
system, the VGA boot screen will appear on the left screen and then
Windows NT will appear on both the screens.
NOTE : Only one Oxygen card can have the VGA jumper set to the
enabled position, and at least one must have VGA disabled for proper
operation. Both Oxygen cards must have VGA disabled if the
motherboard VGA is enabled. Do not use a separate VGA card with
your Oxygen card.
Switching Your Jumper Switching Your Jumper
You can use the jumper on your Oxygen card to enable or disable the
VGA subsystem. A
jumper is a simple hardware switch. There is only
one jumper on your Oxygen card. Your VGA jumper is set in the
factory for single monitor operation.
Caution: Static Electricity
To avoid damage to your Oxygen card from static electricity discharge,
leave the card in the anti-static bag until you are properly grounded.
During the hardware installation and jumper switching procedures,
use the anti-static wrist strap included with your Oxygen card.
Find the jumper on the diagram of your Oxygen card (Figure 20, 21 or
24) in the
Hardware Technical Overview section. The jumper on your
card is set in the factory to the VGA enabled position, as pictured
(Figure 25). This is the position recommended for most users.