ATC/UNITRON COMPUTER & COMPUTER PARTS
U3978
Card Type |
Hard drive controller card |
Hard Drives supported |
Two IDE drives |
Floppy drives supported |
Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
I/O Options |
Serial ports (2), parallel port |
Data Bus |
32-bit VESA Local Bus |
Card Size |
Full-length, full-height card |
CONNECTIONS | |||
Function |
Location |
Function |
Location |
40-pin primary IDE(AT) connector |
J1 |
10-pin serial port 1 - internal |
J5 |
4-pin connector - drive active LED |
J2 |
10-pin serial port 2 - internal |
J6 |
34-pin cable connector - floppy drive |
J3 |
25-pin parallel port - external |
J7 |
16-pin game port |
J4 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
Floppy drive interface enabled |
JP6 |
Pins 1 & 2 closed | |
Floppy drive interface disabled |
JP6 |
Pins 2 & 3 closed | |
Game port enabled |
JP7 |
Pins 1 & 2 closed | |
Game port disabled |
JP7 |
Pins 2 & 3 closed | |
IDE interface enabled |
JP17 |
Pins 1 & 2 closed | |
IDE interface disabled |
JP17 |
Pins 2 & 3 closed |
PARALLEL PORT ADDRESS SELECTION | ||
Setting |
JP8 |
JP9 |
LPT2 (278h) |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
LPT3 (3BCh) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Disabled |
N/A |
Pins 2 & 3 closed |
SERIAL PORT 1 ADDRESS SELECTION | ||
Setting |
JP12 |
JP13 |
COM1 (3F8h) |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
COM3 (3E8h) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Disabled |
N/A |
Pins 2 & 3 closed |
SERIAL PORT 2 ADDRESS SELECTION | ||
Setting |
JP10 |
JP11 |
COM2 (2F8h) |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
COM4 (2E8h) |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Disabled |
Pins 2 & 3 closed |
N/A |
PARALLEL PORT IRQ SELECTION | |
IRQ |
JP14 |
5 |
Pins 2 & 3 closed |
7 |
Pins 1 & 2 closed |
PR4030 SELECTION | |||
Setting |
JP1 |
JP2 |
JP15 |
ID=000 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
I/O PORT ADDRESS SELECTION | ||
Address |
JP3 |
JP16 |
26h |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
2Ah |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
2Eh |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
34h |
Pins 2 & 3 closed |
Pins 1 & 2 closed |