I-BUS
LB486SLC
|
Processor |
CX486SLC |
|
Processor Speed |
33MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
16MB |
|
Cache |
128KB |
|
BIOS |
Unidentified |
|
Dimensions |
300mm x 89mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J3 |
Parallel port |
J15 |
|
Reset switch |
J4 |
Serial port 1 |
J16 |
|
PS/2 mouse port |
J6 |
Serial port 2 |
J17 |
|
Auxiliary keyboard connector |
J7 |
IDE interface LED |
J18 |
|
Floppy drive interface |
J13 |
VGA port |
J22 |
|
IDE interface |
J14 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Factory configured - do not alter |
J1 |
Closed |
|
|
Factory configured - do not alter |
J2 |
Closed |
|
|
Battery type select internal |
J8 |
pins 2 & 3 closed |
|
CMOS memory clear |
J8 |
pins 1 & 2 closed | |
|
IDE IRQ14 enabled |
J12 |
Closed | |
|
IDE IRQ14 disabled |
J12 |
Open | |
|
VGA IRQ9 enabled |
J23 |
Closed | |
|
VGA IRQ9 disabled |
J23 |
Open | |
|
On board video disabled |
J24 |
pins 1 & 2 closed | |
|
On board video enabled |
J24 |
pins 2 & 3 closed | |
|
Password enabled |
J25 |
Closed | |
|
Password disabled |
J25 |
Open | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(2) 256K x 9 |
NONE |
|
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
|
2MB |
(2) 1M x 9 |
NONE |
|
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
|
8MB |
(2) 4M x 9 |
NONE |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
|
CACHE CONFIGURATION |
|
Note: 128KB cache is factory installed and is not configurable. |
|
PARALLEL PORT IRQ CONFIGURATION | |
|
IRQ |
J21 |
|
IRQ3 |
pins 3 & 4 closed |
|
IRQ4 |
pins 5 & 6 closed |
|
IRQ5 |
pins 7 & 8 closed |
|
IRQ7 |
pins 9 & 10 closed |
|
IRQ12 |
pins 1 & 2 closed |
|
SERIAL PORT 1 IRQ CONFIGURATION | |
|
IRQ |
J20 |
|
IRQ3 |
pins 3 & 4 closed |
|
IRQ4 |
pins 5 & 6 closed |
|
IRQ5 |
pins 7 & 8 closed |
|
IRQ7 |
pins 9 & 10 closed |
|
IRQ12 |
pins 1 & 2 closed |
|
SERIAL PORT 2 IRQ CONFIGURATION | |
|
IRQ |
J19 |
|
IRQ3 |
pins 3 & 4 closed |
|
IRQ4 |
pins 5 & 6 closed |
|
IRQ5 |
pins 7 & 8 closed |
|
IRQ7 |
pins 9 & 10 closed |
|
IRQ12 |
pins 1 & 2 closed |