BIOSTAR MICROTECH INTERNATIONAL CORPORATION
MB 1433/1450AEA-P
|
Processor |
80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive |
|
Processor Speed |
20/25/33/50(internal)/50/66(internal)MHz |
|
Chip Set |
VLSI |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
230mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J1 |
Turbo switch |
J5 |
|
Power LED & keylock |
J2 |
5v DC ground |
J6 |
|
Turbo LED |
J3 |
External battery |
JP8 |
|
Reset switch |
J4 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Factory configured - do not alter |
JP4 |
pins 2 & 3 closed |
|
|
Tag RAM size select 7- bit |
JP6 |
pins 1 & 2 closed |
|
Tag RAM size select 8- bit |
JP6 |
pins 2 & 3 closed | |
|
|
Battery type select RTC 146818 |
JP11 |
Open |
|
Battery type select Dallas 1287 |
JP11 |
Closed | |
|
|
Monitor type select monochrome |
JP14 |
pins 1 & 2 closed |
|
Monitor type select color |
JP14 |
pins 2 & 3 closed | |
|
|
CMOS memory normal operation |
JP16 |
pins 2 & 3 closed |
|
CMOS memory clear |
JP16 |
pins 1 & 2 closed | |
|
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) 4M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
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 |
JP12 |
JP19 |
|
64KB |
Open |
pins 1 & 2 closed |
|
128KB |
pins 1 & 2, 3 & 4 closed |
pins 2 & 3 closed |
|
256KB |
pins 1 & 2, 3 & 4, 5 & 6 closed |
pins 1 & 2 closed |
|
CPU TYPE CONFIGURATION | ||
|
Type |
JP13 |
JP20 |
|
80486SX |
Open |
pins 1 & 2 closed |
|
80487SX |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
80486DX/DX2 |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
Overdrive |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
CPU SPEED CONFIGURATION | ||
|
Speed |
JP5 |
JP10 |
|
80486DX-50 |
pins 1 & 2 closed |
Closed |
|
All other CPU speeds |
pins 2 & 3 closed |
Open |