EASTERN ELECTRONICS COMPANY
IDC-747
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Data bus: 16-bit, ISA
Size: Full-length, full-height card
Hard drives supported: Four IDE (AT) Interface drives
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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34-pin data cable connector-floppy drives |
CN1 |
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40-pin IDE (AT) Interface connector-drives 1 & 2 |
CN2 |
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40-pin IDE (AT) Interface connector-drives 3 & 4 |
CN3 |
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4-pin connector-drive active LED |
CN4 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Normal I/O decoder speed |
JP1 |
pins 1 & 2 closed | |
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Fast I/O decoder speed |
JP1 |
pins 2 & 3 closed | |
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Hard drive port address is 1F0-1F7h, 3F6-3F7h |
JP3/jumper 4 |
closed | |
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Hard drive port address is 170-177h, 376-377h |
JP3/jumper 4 |
open | |
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Floppy drive enabled |
JP3/jumper 5 |
closed | |
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Floppy drive disabled |
JP3/jumper 5 |
open | |
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Factory configured - do not alter |
JP3/jumper 6 |
closed | |
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Factory configured - do not alter |
JP3/jumper 7 |
N/A | |
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BIOS ADDRESS | ||||
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Address |
JP3/jumper 1 |
JP3/jumper 2 |
JP3/jumper 3 | |
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D800h |
open |
closed |
closed | |
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D000h |
open |
open |
closed | |
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C800h |
open |
closed |
open | |
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Disabled |
open |
open |
open | |
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INTERRUPT REQUEST | |||||
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IRQ |
JP2/jumper 1 |
JP2/jumper 2 |
JP2/jumper 3 |
JP2/jumper 4 | |
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IRQ5 |
closed |
open |
open |
open | |
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IRQ12 |
open |
closed |
open |
open | |
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IRQ14 |
open |
open |
closed |
open | |
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IRQ15 |
open |
open |
open |
closed | |
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MISCELLANEOUS TECHNICAL NOTES |
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This card's cache feature supports 256KB, 1MB, or 4MB SIMM's; making the maximum cache capacity 16MB. The same size SIMM must be installed in each socket of a bank and Bank 0 must be filled for proper operation of the controller. |