UNITRON COMPUTER, INC.
3486 SYSTEM TYPE 32
|
Processor |
80386DX/CX486DLC/80486SX80487SX/ODP486SX/80486DX/80486DX2 |
|
Processor Speed |
20/25/33/40/50(internal)/50/66(internal)/80(internal)MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
32MB |
|
Cache |
32/64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, game port, IDE interface, parallel port, serial ports (2), VGA port |
|
NPU Options |
80387DX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Game port |
CN1 |
Turbo LED |
J19 |
|
VGA port |
CN2 |
Turbo switch |
J21 |
|
Parallel port |
CN3 |
IDE interface LED |
J22 |
|
Serial port 2 |
CN4 |
External video ports |
J23 & J46 |
|
Serial port 1 |
CN5 |
Floppy drive interface |
J26 |
|
IDE interface |
J16 |
Reset switch |
J58 |
|
Power LED & keylock |
J17 |
Riser Card |
SL1 |
|
Speaker |
J18 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Serial port 2 enabled |
J3 |
pins 1 & 2 closed |
|
Serial port 2 disabled |
J3 |
pins 2 & 3 closed | |
|
|
IDE interface enabled |
J4 |
pins 1 & 2 closed |
|
IDE interface disabled |
J4 |
pins 2 & 3 closed | |
|
|
Floppy drive interface enabled |
J5 |
pins 1 & 2 closed |
|
Floppy drive interface disabled |
J5 |
pins 2 & 3 closed | |
|
|
Parallel port select LPT1 |
J6 |
pins 1 & 2 closed |
|
Parallel port select LPT2 |
J6 |
pins 2 & 3 closed | |
|
|
Serial port 1 enabled |
J8 |
pins 1 & 2 closed |
|
Serial port 1 disabled |
J8 |
pins 2 & 3 closed | |
|
|
Game port enabled |
J9 |
pins 1 & 2 closed |
|
Game port disabled |
J9 |
pins 2 & 3 closed | |
|
|
Hard disk drive installed |
J10 |
pins 1 & 2 closed |
|
Hard disk drive not enabled |
J10 |
pins 2 & 3 closed | |
|
|
Parallel port enabled |
J11 |
pins 1 & 2 closed |
|
Parallel port disabled |
J11 |
pins 2 & 3 closed | |
|
|
NPU disabled |
J20 |
pins 2 & 3 closed |
|
NPU enabled |
J20 |
pins 1 & 2 closed | |
|
|
Floppy drive A/B LED select on J22 Floppy drive A |
J29 |
pins 1 & 2 closed |
|
Floppy drive A/B LED select on J22 Floppy drive B |
J29 |
pins 2 & 3 closed | |
|
|
Floppy/turbo LED select on J19 Floppy (System B or KPUA) |
J30 |
pins 1 & 2 closed |
|
Floppy/turbo LED select on J19 Turbo (System M or MSO) |
J30 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
J31 |
Open |
|
|
Factory configured - do not alter |
J32 |
Open |
|
|
Factory configured - do not alter |
J33 |
Open |
|
|
Factory configured - do not alter |
J34 |
Open |
|
|
Factory configured - do not alter |
J43 |
Open |
|
|
Parity check disabled |
J44 |
pins 1 & 2 closed |
|
Parity check enabled |
J44 |
pins 2 & 3 closed | |
|
|
Monitor type select monochrome |
J51 |
pins 1 & 2 closed |
|
Monitor type select color |
J51 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
J52 |
Open |
|
|
Factory configured - do not alter |
J53 |
Open |
|
USER CONFIGURABLE SETTINGS (CONT) | |||
|
Function |
Jumper |
Position | |
|
|
Factory configured - do not alter |
J54 |
Open |
|
|
Factory configured - do not alter |
J55 |
Open |
|
|
Factory configured - do not alter |
J56 |
Open |
|
|
Factory configured - do not alter |
J57 |
Open |
|
Note: Hard drive & floppy drive jumper settings must match. | |||
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
32KB |
(4) 8K x 8 |
NONE |
(1) 8K x 8 |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | ||||||||
|
Size |
J35 |
J36 |
J37 |
J38 |
J39 |
J40 |
J41 |
J42 |
|
32KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
Open |
|
64KB |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
|
128KB |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
256KB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | ||||||||
|
CPU TYPE CONFIGURATION | ||
|
Type |
J24 |
J59 |
|
80386 |
pins 1 & 2 closed |
Open |
|
80486DLC |
pins 1 & 2 closed |
Open |
|
80486 |
pins 2 & 3 closed |
Closed |
|
CPU TYPECONFIGURATION | |
|
Type |
J15 |
|
80486SX PQFP only |
Open |
|
80486SX PQFP & 80487SX |
pins 1 & 2 closed |
|
80486SX PQFP & 80486DX/DX2/ODP486SX |
pins 2 & 3 closed |
|
VESA CPU TYPE CONFIGURATION | ||
|
Type |
J1 |
J14 |
|
80486SX |
pins 2 & 3 closed |
Open |
|
80487SX |
pins 1, 2 & 3 closed |
pins 2 & 3 closed |
|
ODP486SX |
pins 1, 2 & 3 closed |
pins 2 & 3 closed |
|
80486DX/DX2 |
pins 1, 2 & 3 closed |
pins 1 & 2 closed |
|
CPU SPEED CONFIGURATION (ICS2494-244 CLOCK) | ||||
|
Speed |
J47 |
J48 |
J49 |
J50 |
|
20MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
25MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
32MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
33MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
40MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
50MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
66MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
80MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
CPU SPEED CONFIGURATION (IMS425 CLOCK) | ||||
|
Speed |
J47 |
J48 |
J49 |
J50 |
|
20MHz |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
25MHz |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
32MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
33MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
40MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
50MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
66MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
80MHz |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
SERIAL PORT 1 CONFIGURATION | |
|
Port 1 |
J7 |
|
COM1 |
pins 1 & 2 closed |
|
COM3 |
pins 2 & 3 closed |
|
SERIAL PORT 2 CONFIGURATION | |
|
Port 2 |
J2 |
|
COM2 |
pins 1 & 2 closed |
|
COM4 |
pins 2 & 3 closed |