BIOSTAR MICROTECH INTERNATIONAL CORPORATION
MB-1420C-CH/1433C-CH
|
Processor |
80486SX/80486DX |
|
Processor Speed |
20/33MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/128KB |
|
BIOS |
AMI |
|
Dimensions |
327mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J1 |
Turbo LED |
J4 |
|
Power LED & keylock |
J2 |
Turbo switch |
J5 |
|
Reset switch |
J3 |
External battery |
J6 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
CMOS memory normal operation |
W4 |
pins 2 & 3 closed | |
|
CMOS memory clear |
W4 |
pins 1 & 2 closed | |
|
Monitor type select color |
W5 |
Closed | |
|
Monitor type select monochrome |
W5 |
Open | |
|
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 |
|
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
|
17MB |
(4) 256K x 9 |
(4) 4M x 9 |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
TAG (U21) |
TAG (U22) |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 32K x 8 |
NONE |
|
Note:Bank 0 = U8, U10, U12, & U14. With 16MB or more of DRAM, 128KB of cache must be installed. | ||||
|
CACHE JUMPER CONFIGURATION | |
|
Size |
W1 |
|
64KB |
pins 2 & 3 closed |
|
128KB |
pins 1 & 2 closed |
|
CPU TYPE CONFIGURATION | ||
|
Type |
W2 |
W3 |
|
80486SX-20 |
Open |
Closed |
|
80487SX-20 |
Closed |
Open |
|
80486DX-33 |
Open |
Open |
|
POWER GOOD CONFIGURATION | ||
|
Type |
W6 |
W7 |
|
Signal detect from power supply |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Signal detect from board |
pins 2 & 3 closed |
pins 2 & 3 closed |