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1. Check motherboard manufacturer Web site for SBIOS update.
2. Turn off the on-board video.
The computer does not boot up properly.
Verify that the installation instructions were followed correctly.
Make certain that the graphics card is properly connected to the power supply
and the motherboard.
If using Windows operating system, restart your computer in Safe Mode. For
information on Safe Mode, consult the Windows documentation.
Check the system configuration utility for interrupt assignments.
The computer boots up but there is no display.
Verify that the monitor is connected properly to the computer and a power
supply.
If your motherboard has on-board graphics capabilities, you may need to disable
them. Consult your motherboard documentation for more information.
Note: Some manufacturers do not allow the on-board graphics to be
disabled or to become the secondary display.
During software installation on a PC with the
Windows Vista OS, the screen goes blank
The software is still installing. Wait 20–30 minutes to make sure the software has
finished installing and then restart the computer.
ATI CrossFireX Troubleshooting
Change Motherboard BIOS Settings
Some motherboards may have a system BIOS option to switch between single
and dual PCIe slot support. The default setting may be single slot support. Refer
to the motherboard’s manual for information to enable dual PCIe slot support.
For more information see the ATI CrossFireX Web page at ati.amd.com/
crossfire.
Use Graphics Cards with Different Amounts of Memory
In some ATI CrossFireX configurations, graphics cards with different amounts of
memory can by used; however, restarting your computer is required after
enabling ATI CrossFireX. This will cause ATI CrossFireX to reduce the amount of
memory on the card with the most amount of memory to match the memory size
of the graphics card with the least amount of memory.
Clicking OK to the memory mismatch error message will restart your computer.
16 Reference
ATI Radeon HD 3800 Series © 2007 Advanced Micro Devices, Inc.