Adaptec ACB-2372(B) & 2372(C) RLL Controllers
View of the Controller board.
  • J1: Floppy Drive Connector
  • J3: Hard Drive #1 Data Connector
  • J4: Hard Drive #0 Data Connector
  • J5: Hard Drive Control Connector
  • J6: Hard Drive LED
    • Default settings are in Bold or are selected by a .
    J2: Options (1): Hard Drive Port Address
  • Open for Primary Address (1F0-1F7h).
  • Jumper for Secondary Address (170-177h).
    • (2): Floppy Drive Port Address
  • Open for Primary Address (3F0-3F7h).
  • Jumper for Secondary Address (370-377h??).
    • (3): Bus Wait States
  • Open to Enable.
  • Jumper to Disable.
    • (4): Step Rate/Recal.
  • Open for 16us rate.
  • Jumper for Recal to 0 minus 1.
    • (5): Read Ahead Cache
  • Open to Enable.
  • Jumper to Disable.
    • (6,7): Not Used.

    J7(1-3) & TP23: BIOS Address

  • J7(1/2): C800-CBFF
  • J7(2/3): CC00-CFFF
  • J7(2)/TP23 (vertically): Disable

    • J13: Hard Drive Interrupt Select

  • (1/2): IRQ#14.
  • (2/3): IRQ#15.

    • J20: Floppy DMA IRQ Select (2372 only)

  • (1/2): DREQ#2.
  • (2/3): DREQ#3.

    • J21: Floppy DMA ACK Select

  • (1/2): DACK#2.
  • (2/3): DACK#3.

    • J22: Floppy Interrupt Select

  • (1/2): IRQ#6.
  • (2/3): IRQ#10.

    • Drive type should be set to #1 in CMOS. Run Debug with g=c800:5 (or cc00:5), then choose #1 (Primary format drive 1), enter the Heads & Cylinders and choose the defaults for other entries. When done, run Fdisk & DOS Format.
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