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[ The PC Guide | Troubleshooting and Repair Guide | The Troubleshooting Expert | Troubleshooting Specific Components | Troubleshooting the Motherboard and System Devices | System Bus, Resources and Expansion Cards ]
I have a PCI expansion card or video card that is supposed to support bus mastering, but I can't get bus mastering to work
Explanation: PCI bus mastering is supposed to be supported by a video or expansion card, but is not working properly. (Note that problems with IDE hard disk bus mastering is discussed in this section, not here.)
Diagnosis: Bus mastering problems are generally hard to diagnose, and often depend a great deal on the specific card. General problems with bus mastering can be related to the motherboard or BIOS settings.