QDI COMPUTER, INC.
QD6580W/757/777/787/797VL
Data bus: | 32-bit VL-bus |
Size: | Three-quarter length, half-height card |
Hard drive supported: | Four IDE(AT) drives |
Floppy drives supported: | Two 360KB, 720KB, 1.2MB, or 1.44MB drives |

CONNECTIONS | |
Function | Location |
40-pin primary IDE(AT) connector | CN1 |
40-pin secondary IDE(AT) connector | CN2 |
34-pin cable connector - floppy drive | CN3 |
16-pin game port | CN4 |
9-pin serial port 1 - external, 10-pin serial port 1 internal | CN5 |
10-pin serial port 2 - internal | CN6 |
25-pin parallel port - external | CN7 |
2-pin connector - drive active LED | CN8 |
PARALLEL PORT ADDRESS SELECTION | |||
LPT | JP6 | JP7 | |
| » | LPT1 (378h) | pins 2 & 3 closed | pins 1 & 2 closed |
LPT2 (278h) | pins 1 & 2 closed | pins 2 & 3 closed | |
LPT3 (3BCh) | pins 2 & 3 closed | pins 2 & 3 closed | |
Disabled | pins 1 & 2 closed | pins 1 & 2 closed | |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | Primary IDE controls disk peripherals only | JP1 | open |
| Primary IDE controls disk and non-disk peripherals | JP1 | closed | |
| » | Sense clock frequency from VL slot | JP2/pins 2 & 3 | closed |
| Does not sense clock frequency from VL slot | JP2/pins 1 & 2 | closed | |
| » | IDE(AT) interface enabled | JP3/pins 2 & 3 | closed |
| IDE(AT) interface disabled | JP3/pins 1 & 2 | closed | |
| » | Primary IDE at 1FXh & secondary IDE at 17Xh enabled | JP4 | closed |
| Only primary IDE at 1FX enabled | JP4 | open | |
| » | Chipset register address is 0BXh | JP5/pins 2 & 3 | closed |
| Chipset register address is 03Xh | JP5/pins 1 & 2 | open | |
| » | Floppy drive interface enabled | JP12/pins 2 & 3 | closed |
| Floppy drive interface disabled | JP12/pins 1 & 2 | closed | |
| » | Floppy drive order is normal (A:, B:) | JP13/pins 2 & 3 | closed |
| Floppy drive order is reversed (B:, A:) | JP13/pins 1 & 2 | closed | |
| » | Game port enabled | JP14 | closed |
| Game port disabled | JP14 | open | |
| » | Parallel port IRQ 7 select | JP15/pins 2 & 3 | closed |
| Parallel port IRQ 5 select | JP15/pins 1 & 2 | closed | |
| » | Parallel port is unidirectional | JP16 | closed |
| Parallel port is bi-directional | JP16 | open | |
| » | Factory configured - do not alter | JP17 | N/A |
| » | Factory configured - do not alter | JP18 | N/A |
| » | Factory configured - do not alter | JP19 | N/A |
| » | Factory configured - do not alter | JP20 | N/A |
| » | Factory configured - do not alter | JP21 | N/A |
| » | Factory configured - do not alter | JP22 | N/A |
SERIAL PORT 1 ADDRESS SELECTION | |||
COM | JP8 | JP9 | |
| » | COM1 (3F8h) | pins 2 & 3 closed | pins 1 & 2 closed |
COM3 (3E8h) | pins 1 & 2 closed | pins 2 & 3 closed | |
Disabled | pins 1 & 2 closed | pins 1 & 2 closed | |
SERIAL PORT 2 ADDRESS SELECTION | |||
COM | JP10 | JP11 | |
| » | COM2 (2F8h) | pins 2 & 3 closed | pins 1 & 2 closed |
COM4 (2E8h) | pins 1 & 2 closed | pins 2 & 3 closed | |
Disabled | pins 1 & 2 closed | pins 1 & 2 closed | |