User`s guide

IDE hard disk drive jumper-settings
Model number
1 Single drive
1 Master drive
1 Slave drive
1 Conner CFS1275A
1 C/D jumpered
1 C/D jumpered 1 No jumpers
I
1 Conner CFS850A
1 C/D jumpered
1 C/D jumpered 1 No jumpers
I
1 Conner CFS540A
I C/D jumpered
1 C/D jumpered
1 No jumpers
I
1 Conner CFS425A
I C/D jumpered
1 C/D jumpered
1 No jumpers
I
1 Conner CFS420A
1 C/D jumpered
1 C/D jumpered
1 No jumpers
I
1 Conner CFS270A 1 C/D jumpered
1 C/D jumpered 1 No jumpers
I
1 Western Digital AC2540 1 No jumpers
1 5-6 jumpered 1 3-4 jumpered
1 Western Digital AC2420 1 No Jumpers
1 5-6 jumpered 1 3-4 jumpered
1 Western Digital AC2340 1 No jumpers
1 5-6 jumpered 1 3-4 jumpered
Western Digital AC2250 No jumpers
1 5-6 jumpered 1 3-4 jumpered
DMA Assignments
Level Assigned device
1 DMA0 Reserved
1 DMA1 1 Available
1 DMA2 1 Diskette drive controller
1 DMA3 1 Available
1 DMA4 1 Cascade from DMA1 to DMA2
1 DMA5 1 Spare
1 DMA6 1 Spare
1 DMA7 1 Spare
Specifications A-11