Compaq Portable 386 Compaq Portable 386 Personal Computer Maintenance and Serv - Page 159
ESDI External Fixed Disk Drive Controller Board
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Chapter 9.7 ESDI External Fixed Disk Drive Controller Board Switch settings for the 1:1 Interleave Buffered ESDI External Fixed Disk Drive Controller Board are listed in Table 9-17. The board is shown in Figure 9-7. Table 9-17. 1:1 Interleave Buffered ESDI External Fixed Disk Drive Controller Board (Assy No. 001091) Switch Setting Status Function 1 ON Secondary Address Selects controller address. 2 OFF (default) Primary Address 2 and 3 OFF/OFF IRQ15 Selected Selects power up default ON/OFF IRQ14 Selected interrupt for the board. OFF/ON IRQ12 Selected ON/ON IRQ11 Selected
Chapter 9.7 ESDI External Fixed Disk Drive Controller Board
Switch settings for the 1:1 Interleave Buffered ESDI External Fixed Disk Drive
Controller Board are listed in Table 9-17. The board is shown in Figure 9-7.
Table 9-17. 1:1 Interleave Buffered ESDI External Fixed Disk Drive Controller
Board (Assy No. 001091)
==============================================================================
Switch
Setting
Status
Function
------------------------------------------------------------------------------
1
ON
Secondary Address
Selects controller address.
2
OFF (default) Primary Address
------------------------------------------------------------------------------
2 and 3
OFF/OFF
IRQ15 Selected
Selects power up default
ON/OFF
IRQ14 Selected
interrupt for the board.
OFF/ON
IRQ12 Selected
ON/ON
IRQ11 Selected
==============================================================================