JPN CORPORATION
MB-486 DX-33 UM
|
Processor |
80486SX/80487SX/80486DX |
|
Processor Speed |
33MHz |
|
Chip Set |
UMC |
|
Max. Onboard DRAM |
40MB |
|
Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J1 |
Reset switch |
J4 |
|
Speaker |
J2 |
Turbo LED |
J5 |
|
Turbo switch |
J3 |
External battery |
J6 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select CGA |
W18 |
Closed | |
|
Monitor type select monochrome/EGA/VGA |
W18 |
Open | |
|
Battery select internal |
W22 |
Closed | |
|
Battery select external |
W22 |
Open | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB 1 |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
1MB 2 |
NONE |
NONE |
(1) 256K x 36 |
NONE |
|
2MB 1 |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
2MB 2 |
NONE |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
|
3MB 1 |
(4) 256K x 9 |
(4) 256K x 9 |
(1) 256K x 36 |
NONE |
|
3MB 2 |
(4) 256K x 9 |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
|
4MB 1 |
(4) 256K x 9 |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
|
4MB 2 |
(4) 256K x 9 |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
|
4MB 1 |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
4MB 2 |
NONE |
NONE |
(1) 1M x 36 |
NONE |
|
5MB 1 |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
5MB 2 |
NONE |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
|
6MB 1 |
(4) 256K x 9 |
(4) 256K x 9 |
(1) 1M x 36 |
NONE |
|
6MB 2 |
(4) 1M x 9 |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
|
8MB 1 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
8MB 2 |
NONE |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
|
9MB 1 |
(4) 256K x 9 |
(4) 1M x 9 |
(1) 1M x 36 |
NONE |
|
9MB 2 |
(4) 1M x 9 |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
|
10MB 1 |
(4) 256K x 9 |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
10MB 2 |
(4) 1M x 9 |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
|
12MB 1 |
(4) 1M x 9 |
(4) 1M x 9 |
(1) 1M x 36 |
NONE |
|
12MB 2 |
(4) 1M x 9 |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB 1 |
(4) 1M x 9 |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB 2 |
(4) 1M x 9 |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB 1 |
(4) 4M x 9 |
NONE |
NONE |
NONE |
|
16MB 2 |
NONE |
NONE |
(1) 4M x 36 |
NONE |
|
20MB 1 |
(4) 1M x 9 |
(4) 4M x 9 |
NONE |
NONE |
|
20MB 2 |
NONE |
NONE |
(1) 1M x 36 |
(1) 4M x 36 |
|
24MB 1 |
(4) 1M x 9 |
(4) 1M x 9 |
(1) 4M x 36 |
NONE |
|
24MB 2 |
(4) 4M x 9 |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB 1 |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
NONE |
|
32MB 2 |
NONE |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
|
40MB 1 |
(4) 1M x 9 |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
|
40MB 2 |
(4) 4M x 9 |
(4) 4M x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
Note 1 :On jumpers W12, W13, W15, and W16 - pins 1 & 2 should be in the closed position.Note 2 :On jumpers W12, W13, W15, and W16 - pins 2 & 3 should be in the closed position. | ||||
|
CACHE CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Dirty Bit (U10) |
TAG (U11) |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 16K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 16K x 8 |
(1) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 16K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | ||||||||
|
Size |
W2 |
W3 |
W4 |
W5 |
W6 |
W7 |
W8 |
W9 |
|
64KB |
1 & 2 |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
Open |
Open |
|
128KB |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
Closed |
Open |
Open |
Open |
|
256KB |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
Closed |
Closed |
Closed |
|
Note: Pins designated should be in the closed position. | ||||||||
|
CPU TYPE CONFIGURATION | ||
|
Type |
W10 |
W11 |
|
80486SX |
Open |
pins 2 & 3 closed |
|
80487SX |
pins 2 & 3 closed |
pins 1 & 2 and 3 & 4 closed |
|
80486DX |
pins 1 & 2 closed |
pins 1 & 2 and 3 & 4 closed |