Sapphire 2SX Frequently Asked Questions


Driver will not initialize/After Install, NT still boots in VGA
System hangs running OpenGL


Driver will not initialize/After Install, NT still boots in VGA

Ensure that the Host video card is in a PCI slot before the Sapphire 2SX.

Ensure that an IRQ is assigned to the PCI slot that the Sapphire 2SX is occupying (Award BIOS)

If there is on-board video (on motherboard), try the following:


System hangs running OpenGL

Try Disabling DMA


How to Disable DMA

Run the registry editor (c:\winnt35\system32\regedt32)

Double click on HKEY_LOCAL_MACHINE on Local Machine

Double click on SYSTEM

Double click on CurrentControlSet

Double click on Services

Double click on S2SX

Double click on Device0

Double click on S2SXDMA.NumberOfBuffers:REG_DWORD:0x4

Change 4 to 0 in DWORD Editor

Click on OK and Restart Windows NT



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