D975XBX motherboard with dual graphics adapters

D975XBX motherboard with dual graphics adapters

Post by Beman Dawe » Tue, 19 Sep 2006 02:43:26


I'm trying to run two graphics adapters on a D975XBX motherboard, with a
Core 2 Duo processor, on Win XP SP2, so I can run three monitors. I've
tried various graphics adapter combinations (both ATI and NVidia), but
am getting a conflict between them.

The problem may be related to sharing IRQ 16 between the two boards. If
I boot in safe mode, disable one of the graphics driver, reboot, and
reinstall the driver, the setup will sometimes run the three monitors
OK, but will then fail again on the next reboot.

Bios and all drivers are the latest versions.

Any ideas?

Who is in charge of mediating IRQ conflicts? The operating system, the
graphics device drivers, or the BIOS?

TIA,

--Beman Dawes
 
 
 

D975XBX motherboard with dual graphics adapters

Post by boe » Thu, 21 Sep 2006 06:25:57

Did you try running xFIRE ATI cards?