COMPAQ COMPUTER CORPORATION
000519 HARD DISK DRIVE CONTROLLER BOARD
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Data bus: |
16-bit, ISA |
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Size: |
Three/quarter-length, full-height card |
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Hard drive supported: |
Two IDE (AT) Interface drives |
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Floppy drives supported: |
Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
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CONNECTIONS | |
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Function |
Location |
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40-pin IDE(AT) Interface connector |
CN1 |
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34-pin control cable connector - floppy drive |
CN2 |
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10-pin serial port (COM1/2) - external |
CN3 |
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25-pin parallel port (LPT1/2) - external |
CN4 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Hard drive port address is 1F0-1F7h Floppy drive port address is 3F0-3F7h |
SW500/switch 1 |
open | |
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Hard drive port address is 170-177h Floppy drive port address is 370-377h |
SW500/switch 1 |
closed | |
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High-speed floppy drive transfer rate enabled |
SW500/switch 2 |
closed | |
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High-speed floppy drive transfer rate disabled |
SW500/switch 2 |
open | |
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Hard drive enabled |
SW500/switch 3 |
open | |
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Hard drive disabled |
SW500/switch 3 |
closed | |
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Serial Port (CN3) is set to COM1 |
SW500/switch 4 |
open | |
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Serial Port (CN3) is set to COM2 |
SW500/switch 4 |
closed | |
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Serial Port (CN3) enabled |
SW500/switch 5 |
open | |
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Serial Port (CN3) disabled |
SW500/switch 5 |
closed | |
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Parallel Port (CN3) enabled |
SW500/switch 6 |
open | |
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Parallel Port (CN3) disabled |
SW500/switch 6 |
closed | |