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DMA Channel Assignments: Dell OptiPlex GX1 Systems
| DREQ Line |
Used By/Available |
| DREQ0 |
Available |
| DREQ1 |
Available |
| DREQ2 |
Super I/O controller (to
initiate DMA cycle for attached diskette drive) |
| DREQ3 |
Available |
| DREQ4 |
Bus controller chip (to activate
second DMA controller) |
| DREQ5 |
Available |
| DREQ6 |
Available |
| DREQ7 |
Available |
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NOTE: The integrated sound controller,
NIC, and video controllers are assigned available DMA channels automatically during system
start-up. |
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