BIOSTAR MICROTECH INTERNATIONAL CORPORATION
MB-1425/1433/1440/1450UIV (REV. 1)
Processor |
CX486M6/80486SX/SL80486SX/CX486DX/AM486DX/UMC U5/80486DX/ SL80486DX/CX486DX2/AM486DX2/80486DX2/SL80486DX2/AM486DX4/ 80486DX4/P24D/Pentium Overdrive |
Processor Speed |
25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)/120(internal)MHz |
Chip Set |
Unidentified |
Max. Onboard DRAM |
64MB |
Cache |
64/128/256KB |
BIOS |
AMI/Award |
Dimensions |
254mm x 218mm |
I/O Options |
32-bit VESA local bus slots (3), floppy drive interface, green PC connector |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Speaker |
JP15 pins 1 - 4 |
+5v ground |
JP15 pins 17 & 18 |
Power LED & keylock |
JP15 pins 5 - 9 |
External battery |
JP8 |
Turbo LED |
JP15 pins 10 & 11 |
Green PC LED |
JP24 |
Reset switch |
JP15 pins 12 & 13 |
Green PC connector |
JP25 |
Turbo switch |
JP15 pins 14 & 15 |
32-bit VESA local bus slots |
SL1 - SL3 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
|
CMOS memory normal operation |
JP8 |
pins 2 & 3 closed |
CMOS memory clear |
JP8 |
pins 3 & 4 closed | |
|
Factory configured - do not alter |
JP31 |
N/A |
|
DS12887 normal operation |
JP32 |
Open |
DS12887 clear |
JP32 |
Closed | |
|
VESA bus slot select synchronous |
JP36 |
pins 1 & 2 closed |
VESA bus slot select asynchronous |
JP36 |
pins 2 & 3 closed |
DRAM CONFIGURATION | |||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
1MB |
(4) 256K x 9 |
NONE |
NONE |
1MB |
NONE |
(1) 256K x 36 |
NONE |
1MB |
NONE |
NONE |
(1) 256K x 36 |
2MB |
(4) 256K x 9 |
(1) 256K x 36 |
NONE |
2MB |
(4) 256K x 9 |
NONE |
(1) 256K x 36 |
2MB |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
2MB |
NONE |
(1) 512K x 36 |
NONE |
2MB |
NONE |
NONE |
(1) 512K x 36 |
3MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
3MB |
(4) 256K x 9 |
NONE |
(1) 512K x 36 |
3MB |
NONE |
(1) 256K x 36 |
(1) 512K x 36 |
3MB |
NONE |
(1) 512K x 36 |
(1) 256K x 36 |
4MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 512K x 36 |
4MB |
(4) 1M x 9 |
NONE |
NONE |
4MB |
NONE |
(1) 512K x 36 |
(1) 512K x 36 |
4MB |
NONE |
(1) 1M x 36 |
NONE |
4MB |
NONE |
NONE |
(1) 1M x 36 |
5MB |
(4) 256K x 9 |
(1) 1M x 36 |
NONE |
5MB |
(4) 256K x 9 |
NONE |
(1) 1M x 36 |
5MB |
(4) 1M x 9 |
(1) 256K x 36 |
NONE |
5MB |
(4) 1M x 9 |
NONE |
(1) 256K x 36 |
5MB |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
5MB |
NONE |
(1) 1M x 36 |
(1) 256K x 36 |
6MB |
(4) 1M x 9 |
NONE |
(1) 512K x 36 |
6MB |
NONE |
(1) 1M x 36 |
(1) 512K x 36 |
6MB |
NONE |
(1) 512K x 36 |
(1) 1M x 36 |
7MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 512K x 36 |
7MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 512K x 36 |
8MB |
(4) 1M x 9 |
(1) 1M x 36 |
NONE |
8MB |
(4) 1M x 9 |
NONE |
(1) 1M x 36 |
8MB |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
8MB |
NONE |
(1) 2M x 36 |
NONE |
8MB |
NONE |
NONE |
(1) 2M x 36 |
DRAM CONFIGURATION (CONT) | |||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
9MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
9MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 256K x 36 |
9MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 1M x 36 |
10MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 512K x 36 |
12MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
12MB |
(4) 1M x 9 |
NONE |
(1) 2M x 36 |
12MB |
NONE |
(1) 1M x 36 |
(1) 2M x 36 |
12MB |
NONE |
(1) 2M x 36 |
(1) 1M x 36 |
16MB |
(4) 4M x 9 |
NONE |
NONE |
16MB |
NONE |
(1) 4M x 36 |
NONE |
16MB |
NONE |
NONE |
(1) 4M x 36 |
17MB |
(4) 256K x 9 |
(1) 4M x 36 |
NONE |
17MB |
(4) 256K x 9 |
NONE |
(1) 4M x 36 |
17MB |
(4) 4M x 9 |
(1) 256K x 36 |
NONE |
17MB |
(4) 4M x 9 |
NONE |
(1) 256K x 36 |
18MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 4M x 36 |
18MB |
(4) 256K x 9 |
(1) 4M x 36 |
(1) 256K x 36 |
19MB |
(4) 256K x 9 |
(1) 4M x 36 |
(1) 512K x 36 |
20MB |
(4) 1M x 9 |
(1) 4M x 36 |
NONE |
20MB |
(4) 1M x 9 |
NONE |
(1) 4M x 36 |
20MB |
(4) 4M x 9 |
(1) 1M x 36 |
NONE |
20MB |
(4) 4M x 9 |
NONE |
(1) 1M x 36 |
21MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 4M x 36 |
21MB |
(4) 256K x 9 |
(1) 4M x 36 |
(1) 1M x 36 |
24MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 4M x 36 |
24MB |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 1M x 36 |
32MB |
(4) 4M x 9 |
(1) 4M x 36 |
NONE |
32MB |
(4) 4M x 9 |
NONE |
(1) 4M x 36 |
32MB |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
32MB |
NONE |
NONE |
(1) 8M x 36 |
33MB |
(4) 256K x 9 |
NONE |
(1) 8M x 36 |
33MB |
(4) 256K x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
33MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 256K x 36 |
33MB |
(4) 4M x 9 |
(1) 256K x 36 |
(1) 4M x 36 |
34MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 512K x 36 |
36MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 1M x 36 |
36MB |
(4) 4M x 9 |
(1) 1M x 36 |
(1) 4M x 36 |
36MB |
(4) 1M x 9 |
NONE |
(1) 8M x 36 |
36MB |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
48MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
48MB |
(4) 4M x 9 |
NONE |
(1) 8M x 36 |
48MB |
NONE |
(1) 4M x 36 |
(1) 8M x 36 |
48MB |
NONE |
(1) 8M x 36 |
(1) 4M x 36 |
64MB |
NONE |
(1) 8M x 36 |
(1) 8M x 36 |
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 (A) |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
256KB (B) |
(4) 64K x 8 |
NONE |
(1) 32K x 8 |
CACHE JUMPER CONFIGURATION | ||||
Size |
JP7 |
JP9 |
JP10 |
JP33 |
64KB |
Open |
Open |
pins 2 & 3 closed |
Open |
128KB |
Open |
pins 1 & 2 closed |
pins 1 & 2 closed |
Closed |
256KB (A) |
Closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
Closed |
256KB (B) |
Closed |
pins 1 & 2, 3 & 4 closed |
pins 1 & 2 closed |
Closed |
CPU TYPE CONFIGURATION | |||||
Type |
JP11 |
JP12 |
JP13 |
JP17 |
JP18 |
CX486SX |
1 & 2, 3 & 4, 5 & 6 |
1 & 2, 3 & 4, 5 & 6 |
2 & 3 |
Open |
2 & 3, 4 & 5 |
80486SX |
Open |
2 & 3 |
2 & 3 |
Open |
Open |
SL80486SX |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
5 & 6 |
CX486DX |
1 & 2, 3 & 4, 5 & 6 |
1 & 2, 3 & 4, 5 & 6 |
1 & 2, 3 & 4 |
1 & 2 |
2 & 3, 4 & 5 |
AM486DX |
Open |
2 & 3 |
1 & 2, 3 & 4 |
2 & 3 |
Open |
80486DX |
Open |
2 & 3 |
1 & 2, 3 & 4 |
1 & 2 |
Open |
SL80486DX |
1 & 2, 4 & 5 |
1 & 2, 4 & 5 |
1 & 2, 3 & 4 |
1 & 2 |
3 & 4, 5 & 6 |
UMC U5S |
2 & 3 |
2 & 3 |
2 & 3 |
3 & 4 |
1 & 2 |
CX486DX2 |
1 & 2, 3 & 4, 5 & 6 |
1 & 2, 3 & 4, 5 & 6 |
1 & 2, 3 & 4 |
1 & 2 |
2 & 3, 4 & 5 |
AM486DX2 |
Open |
2 & 3 |
1 & 2, 3 & 4 |
2 & 3 |
Open |
SLAM486DX2 |
1 & 2 |
1 & 2, 4 & 5 |
1 & 2, 3 & 4 |
1 & 2 |
3 & 4, 5 & 6 |
80486DX2 |
Open |
2 & 3 |
1 & 2, 3 & 4 |
1 & 2 |
Open |
SL80486DX2 |
1 & 2, 4 & 5 |
1 & 2, 4 & 5 |
1 & 2, 3 & 4 |
1 & 2 |
3 & 4, 5 & 6 |
CX486DX4 |
1 & 2, 3 & 4, 5 & 6 |
1 & 2, 3 & 4, 5 & 6 |
1 & 2, 3 & 4 |
1 & 2 |
2 & 3, 4 & 5 |
AM486DX4 |
Open |
2 & 3 |
1 & 2, 3 & 4 |
2 & 3 |
Open |
SLAM486DX4 |
1 & 2 |
1 & 2, 4 & 5 |
1 & 2, 3 & 4 |
1 & 2 |
3 & 4, 5 & 6 |
80486DX4 |
1 & 2, 4 & 5 |
1 & 2, 4 & 5 |
1 & 2, 3 & 4 |
1 & 2 |
3 & 4, 5 & 6 |
P24D |
1 & 2, 4 & 5 |
1 & 2, 4 & 5 |
1 & 2, 3 & 4 |
1 & 2 |
3 & 4, 5 & 6 |
P24T |
1 & 2 |
1 & 2 |
1 & 2, 3 & 4 |
2 & 3 |
5 & 6 |
Note: Pins designated should be in the closed position. All jumpers may not be present on all revisions. |
CPU TYPE CONFIGURATION (CONT) | |||||
Type |
JP19 |
JP20 |
JP23 |
JP35 |
JP40 |
CX486SX |
2 & 3, 4 & 5 |
Open |
Open |
Open |
Open |
80486SX |
Open |
Open |
Open |
Closed |
Open |
SL80486SX |
1 & 2, 3 & 4 |
Open |
Open |
Closed |
Open |
CX486DX |
2 & 3 |
Open |
Open |
Open |
Open |
AM486DX |
Open |
1 & 2 |
Open |
Closed |
Open |
80486DX |
Open |
Open |
Open |
Closed |
Open |
SL80486DX |
1 & 2, 3 & 4 |
Open |
Open |
Open |
Open |
UMC U5S |
Open |
Open |
Open |
Closed |
Open |
CX486DX2 |
2 & 3 |
Open |
Open |
Open |
Open |
AM486DX2 |
Open |
1 & 2 |
Open |
Closed |
Open |
SL AM486DX2 |
1 & 2, 3 & 4 |
Open |
Open |
Open |
Closed |
80486DX2 |
Open |
Open |
Open |
Closed |
Open |
SL80486DX2 |
1 & 2, 3 & 4 |
Open |
Open |
Open |
Open |
CX486DX4 |
2 & 3 |
Open |
Open |
Open |
Open |
AM486DX4 |
Open |
1 & 2 |
Open |
Closed |
Open |
SL AM486DX4 |
1 & 2, 3 & 4 |
Open |
Open |
Open |
Closed |
80486DX4 |
1 & 2, 3 & 4 |
Open |
Open |
Open |
Open |
P24D |
1 & 2, 3 & 4 |
Open |
Open |
Open |
Open |
P24T |
1 & 2, 3 & 4 |
Open |
Open |
Open |
Open |
Note: Pins designated should be in the closed position. All jumpers may not be present on all revisions. |
CPU SPEED CONFIGURATION | |||
Speed |
JP4 |
JP5 |
JP6 |
25MHz |
Open |
Open |
Closed |
33MHz |
Closed |
Closed |
Closed |
40MHz |
Open |
Closed |
Closed |
50iMHz |
Open |
Open |
Closed |
50MHz |
Closed |
Open |
Open |
66iMHz |
Closed |
Closed |
Closed |
75iMHz |
Open |
Open |
Closed |
80iMHz |
Open |
Closed |
Closed |
100iMHz |
Closed |
Closed |
Closed |
CPU VOLTAGE CONFIGURATION | |||||
Voltage |
JP14 |
JP16 |
JP27 |
JP38 |
JP39 |
3.3v - 3.6v |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
4v |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
Closed |
5v |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
Open |
Note: Pins designated should be in the closed position. |
VESA WAIT STATE CONFIGURATION | |
Wait states |
JP22 |
0 wait states |
Open |
1 wait state |
Closed |
BUS SPEED CONFIGURATION | |
CPU speed |
JP21 |
<= 33MHz |
Open |
> 33MHz |
Closed |