MICRO-STAR INTERNATIONAL CO., LTD.
MS-4143 (VER. 1.0)
Processor |
80486SX/SL80486SX/AM486DX/80486DX/SL80486DX/CX486DX2/ AM486DXL/AM486DX2/80486DX2/SL80486DX2/SL80486DX4/P24D |
Processor Speed |
25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/ 100(internal)MHz |
Chip Set |
ALI |
Video Chip Set |
None |
Maximum Onboard Memory |
64MB |
Maximum Video Memory |
None |
Cache |
128/256/512KB |
BIOS |
AMI |
Dimensions |
270mm x 220mm |
I/O Options |
32-bit PCI slots (3), floppy drive interface, game interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Serial port 1 |
CN1 |
Speaker |
JFP/pins 7 - 10 |
Serial port 2 |
CN2 |
Turbo LED |
JFP/pins 12 & 13 |
Parallel port |
CN3 |
Reset switch |
JFP/pins 19 & 20 |
Floppy drive interface |
CN4 |
IDE interface LED |
JFP/pins 21 & 22 |
IDE interface 2 |
CN5 |
Chassis fan power |
JFAN |
IDE interface 1 |
CN6 |
Green PC connector (monitor) |
JG1 |
Game interface |
CN7 |
Green PC LED |
JG2 |
External battery |
JB1 |
Green PC connector |
JG3 |
Power LED & keylock |
JFP/pins 1 - 5 |
32-bit PCI slots |
PC1 - PC3 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
|
Battery type select internal |
JB1 |
Pins 2 & 3 closed |
Battery type select external |
JB1 |
Closed | |
|
Factory configured - do not alter |
JC10 |
Unidentified |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
1MB |
(1) 256K x 36 |
None |
None |
None |
2MB |
(1) 512K x 36 |
None |
None |
None |
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
None |
None |
3MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
None |
4MB |
(1) 1M x 36 |
None |
None |
None |
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
None |
None |
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
6MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
None |
8MB |
(1) 2M x 36 |
None |
None |
None |
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
8MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
12MB |
(1) 2M x 36 |
(1) 1M x 36 |
None |
None |
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
16MB |
(1) 4M x 36 |
None |
None |
None |
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
None |
None |
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
None |
None |
20MB |
(1) 2M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
24MB |
(1) 4M x 36 |
(1) 2M x 36 |
None |
None |
24MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
None |
28MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
32MB |
(1) 8M x 36 |
None |
None |
None |
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
None |
DRAM CONFIGURATION (CONT) | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
32MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
40MB |
(1) 8M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
40MB |
(1) 8M x 36 |
(1) 2M x 36 |
None |
None |
40MB |
(1) 4M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
44MB |
(1) 8M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
48MB |
(1) 8M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
None |
48MB |
(1) 8M x 36 |
(1) 4M x 36 |
None |
None |
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
None |
None |
64MB |
(1) 16M x 36 |
None |
None |
None |
CACHE CONFIGURATION | |||
Size |
Bank 0 |
Bank 1 |
TAG |
128KB |
(4) 32K x 8 |
None |
(1) 8K/16K/32 x 8 |
256KB (A) |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 16K/32K x 8 |
256KB (B) |
(4) 64K x 8 |
None |
(1) 16K/32K x 8 |
512KB |
(4) 128K x 8 |
None |
(1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||
Size |
JS1 |
JS2 |
JS3 |
128KB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
256KB (A) |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
256KB (B) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
512KB |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
CPU SPEED SELECTION | |||
Speed |
JK1 |
JK2 |
JK3 |
25MHz |
Open |
Pins 2 & 3 closed |
Open |
33MHz |
Pins 1 & 2, 3 & 4 closed |
Pins 2 & 3 closed |
Open |
40MHz |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Closed |
50iMHz |
Open |
Pins 2 & 3 closed |
Open |
66iMHz |
Pins 1 & 2, 3 & 4 closed |
Pins 2 & 3 closed |
Open |
75iMHz |
Open |
Pins 2 & 3 closed |
Open |
80iMHz |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Closed |
100iMHz |
Pins 1 & 2, 3 & 4 closed |
Pins 2 & 3 closed |
Open |
CPU TYPE SELECTION | ||||
Type |
JC1 |
JC2 |
JC3 |
JC4 |
80486SX |
Open |
2 & 3 |
Open |
Open |
SL80486SX |
Open |
2 & 3 |
Open |
2 & 3 |
AM486DX |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
80486DX |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
SL80486DX |
2 & 3 |
1 & 2, 3 & 4 |
Open |
2 & 3 |
CX486DX2 |
2 & 3 |
1 & 2, 3 & 4 |
4 & 5 |
4 & 5 |
AM486DXL |
2 & 3 |
1 & 2, 3 & 4 |
1 & 2 |
1 & 2 |
AM486DX2 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
80486DX2 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
Open |
SL80486DX2 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
2 & 3 |
SL80486DX4 |
2 & 3 |
1 & 2, 3 & 4 |
Open |
2 & 3 |
P24D |
2 & 3 |
1 & 2, 3 & 4 |
2 & 3 |
2 & 3 |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION (CONT) | |||||
Type |
JC5 |
JC6 |
JC7 |
JC8 |
JC9 |
80486SX |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
SL80486SX |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
Open |
AM486DX |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
80486DX |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
SL80486DX |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
Open |
CX486DX2 |
4 & 5 |
4 & 5 |
2 & 3 |
Open |
Closed |
AM486DXL |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
Open |
AM486DX2 |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
80486DX2 |
1 & 2 |
Open |
1 & 2 |
Open |
Open |
SL80486DX2 |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
Open |
SL80486DX4 |
2 & 3 |
2 & 3 |
1 & 2 |
Closed |
Open |
P24D |
2 & 3 |
2 & 3 |
2 & 3, 4 & 5 |
Closed |
Open |
Note: Pins designated should be in the closed position. |
CPU VOLTAGE SELECTION | |||
Voltage |
J4 |
JP8 | |
3.45v |
Pins 4 & 10, 5 & 11, 6 & 12 closed |
Open | |
3.6v |
Pins 4 & 10, 5 & 11, 6 & 12 closed |
Closed | |
5v |
Pins 1 & 7, 2 & 8, 3 & 9 closed |
Open |
DMA CHANNEL SELECTION | |||||
Channel |
JP17 |
JP18 |
JP23 |
JP24 | |
1 |
Closed |
Closed |
Open |
Open | |
3 |
Open |
Open |
Closed |
Closed |