5
Important—
To receive the full benefits of the AGP version of your Viper board, you
must be running either Windows 98, or Windows 95 OSR2 (version 4.00.950 B, or
newer) on a system that has been updated with the
USB OSR2.1
supplement. Check
the software disks that were included with your computer equipment to verify that
you have the USB supplement, or contact your computer manufacturer for additional
details. If you are running Windows NT 4.0, you must be updated with the latest
Service Pack. Service Pack 4 is the current version available from Microsoft.
Setting the Jumpers for Your Card (Viper V770)
Your card may be equipped with jumper switches and may require certain jumper
settings to operate properly on either AGP 2X or 4X motherboards. You must first
determine whether your AGP motherboard supports an AGP 2X or 4X configuration.
Consult your computer or motherboard manufacturer’s user guide to verify what it
supports.
Note:
The factory default jumper settings are set to AGP 2X. If you have a 2X
motherboard, do not make any changes to the jumpers on the card—you can skip this
section and continue with the next. If you have an AGP 4X motherboard, use the
following instructions to set the jumpers.
The Viper V770 has 4 jumpers located on the card. They are visible on the
illustration below as
J1, J2, J3, J4
. The
J4
pins are marked
A B C
for reference.
To change the jumpers to the AGP 4X configuration:
1.
Move jumper J4 from the (factory default)
A-B
position to the
B-C
position:
A
B
C
B
B
Jumper J4, A-B position
Jumper J4, B-C position
A
A
C
C
A
B
C
