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NVIDIA Quadro Professional Drivers NVIDIA Control Panel Quick ...

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Appendix B<br />

Multi-GPU Systems<br />

Monitor Order After Changing the GPU Boot Priority in the BIOS<br />

By default, in a multi‐graphics card system the AGP or PCI‐E bus has boot priority in<br />

the system BIOS, meaning that GPU0 resides on the AGP or PCI‐E graphics card and<br />

displays are enumerated beginning with that GPU.<br />

If you change the boot priority to the PCI bus, displays are enumerated in the same<br />

order except that the first display is enumerated from the GPU on the PCI bus. After that,<br />

the GPUs and displays are enumerated in the standard priority, as shown in Table<br />

B.5.<br />

Table B.5<br />

Windows Monitor Numbering Example–PCI Boot Priority<br />

Connector Position<br />

Monitor Number<br />

Under Windows<br />

Vista<br />

Monitor Number<br />

Under Windows<br />

XP<br />

GPU0 (AGP/PCI‐E)—Output 1 3 2<br />

GPU0 (AGP/PCI‐E)—Output 2 4 4<br />

GPU1 (AGP/PCI‐E) —Output 1 5 3<br />

GPU1 (AGP‐PCI‐E) —Output 2 6 5<br />

GPU2 (PCI) —Output 1 1 1<br />

GPU2 (PCI) —Output 2 2 6<br />

<strong>NVIDIA</strong> Corporation 59

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