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PCI/ISA System Board
44
Jumper JP1
ECP DMA Channel Select
The on-board printer port can be set to ECP mode in
CMOS Setup. In ECP mode (but not in the other printer
port modes), the printer port requires a DMA channel.
Set Jumper JP1 to assign either DMA Channel 1 or
DMA Channel 3 to the ECP port. Use a DMA channel
that does not conflict with your add-in cards. For ex-
ample, if you have a sound card that uses DMA3, then
assign DMA1 to the ECP port.
1
3
5
2
6
4
1
3
5
2
6
4
1
3
5
2
6
4
Off: No DMA 3-5, 4-6 On:
DMA 3
1-3, 2-4 On:
DMA 1 (Default)