MICRO-STAR INTERNATIONAL CO., LTD.
MS-4145
Processor |
80486SX/SL80486SX/AM486DX/(SL)AM486DX/80486DX/ SL80486DX/CX486DX2/IBM486DX2/SGS486DX2/TI486DX2/ AM486DX2/ODP486DX2/80486DX2/SL80486DX2/SL80486DX4/ P24D/P24T/CX5X86/(SL)AM X5 |
Processor Speed |
25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/ 100(internal)/120(internal)/133(internal)/160(internal)MHz |
Chip Set |
ALI |
Video Chip Set |
None |
Maximum Onboard Memory |
64MB |
Maximum Video Memory |
None |
Cache |
128/256/512KB |
BIOS |
Award |
Dimensions |
220mm x 220mm |
I/O Options |
32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2) |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Serial port 1 |
CN1 |
Green PC LED |
JG1 |
Serial port 2 |
CN2 |
Power LED & keylock |
JFP/pins 1 - 5 |
Floppy drive interface |
CN3 |
Speaker |
JFP/pins 7 - 10 |
Parallel port |
CN4 |
Turbo LED |
JFP/pins 12 & 13 |
IDE interface 2 |
CN5 |
Turbo switch |
JFP/pins 15 - 17 |
IDE interface 1 |
CN6 |
Reset switch |
JFP/pins 19 & 20 |
Chassis fan power |
FAN |
IDE interface LED |
JFP/pins 21 & 22 |
External battery |
JBAT |
32-bit PCI slots |
PC1 PC3 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
|
Battery type select internal |
JBAT |
Pins 2 & 3 closed |
Battery type select external |
JBAT |
Closed | |
|
Parallel port address select 378 |
JIRQ |
Pins 1 & 2 closed |
Parallel port address select 278 |
JIRQ |
Pins 2 & 3 closed | |
|
Factory configured do not alter |
JS3 |
Unidentified |
DRAM CONFIGURATION | |||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
4MB |
(1) 1M x 36 |
None |
None |
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
8MB |
(1) 2M x 36 |
None |
None |
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
12MB |
(1) 1M x 36 |
(1) 2M x 36 |
None |
16MB |
(1) 4M x 36 |
None |
None |
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
None |
16MB |
(1) 1M x 36 |
(1) 2M x 36 |
(1) 1M x 36 |
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
None |
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
24MB |
(1) 4M x 36 |
(1) 2M x 36 |
None |
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
32MB |
(1) 8M x 36 |
None |
None |
36MB |
(1) 1M x 36 |
(1) 8M x 36 |
None |
40MB |
(1) 2M x 36 |
(1) 8M x 36 |
None |
40MB |
(1) 4M x 36 |
(1) 2M x 36 |
(1) 4M x 36 |
40MB |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 1M x 36 |
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
48MB |
(1) 4M x 36 |
(1) 8M x 36 |
None |
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
None |
64MB |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 4M x 36 |
CACHE CONFIGURATION | |||
Size |
Bank 0 |
Bank 1 |
TAG |
128KB |
(4) 32K x 8 |
None |
(1) 8K/16K/32K x 8 |
256KB (A) |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 8K/16K/32K x 8 |
256KB (B) |
(2) 64K x 32 |
None |
(1) 8K/16K/32K x 8 |
Note: Board also accepts 512KB cache. The chip sizes and jumper settings are unidentified. |
CACHE JUMPER CONFIGURATION | |||
Size |
JS1 |
JS2 |
JS4 |
128KB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
256KB (A) |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
256KB (B) |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
CPU SPEED SELECTION | ||
Speed |
JK1 |
JK2 |
25MHz |
Open |
Pins 1 & 2 closed |
33MHz |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
40MHz |
Pins 1 & 2 closed |
Pins 2 & 3, 4 & 5 closed |
50iMHz |
Open |
Pins 1 & 2 closed |
66iMHz |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
75iMHz |
Open |
Pins 1 & 2 closed |
80iMHz |
Pins 1 & 2 closed |
Pins 2 & 3, 4 & 5 closed |
100iMHz |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
120iMHz |
Pins 1 & 2 closed |
Pins 2 & 3, 4 & 5 closed |
133iMHz |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
160iMHz |
Pins 1 & 2 closed |
Pins 2 & 3, 4 & 5 closed |
CPU TYPE SELECTION | |||||
Type |
JC1 |
JC2 |
JC3 |
JC4 |
JC5 |
80486SX |
Open |
Open |
Open |
1 & 2 |
2 & 3 |
SL80486SX |
Open |
Open |
Open |
1 & 2 |
2 & 3 |
AM486DX |
Open |
Open |
Open |
2 & 3 |
1 & 2 |
(SL)AM486DX |
Open |
Open |
Open |
2 & 3 |
1 & 2 |
80486DX |
Open |
Open |
Open |
2 & 3 |
1 & 2 |
SL80486DX |
Open |
Open |
Open |
2 & 3 |
1 & 2 |
CX486DX2 |
Open |
Closed |
Open |
2 & 3 |
1 & 2 |
IBM486DX2 |
Open |
Closed |
Open |
2 & 3 |
1 & 2 |
SGS486DX2 |
Open |
Closed |
Open |
2 & 3 |
1 & 2 |
TI486DX2 |
Open |
Closed |
Open |
2 & 3 |
1 & 2 |
AM486DX2 |
Open |
Open |
Open |
2 & 3 |
1 & 2 |
ODP486DX2 |
Open |
Open |
Open |
2 & 3 |
1 & 2 |
80486DX2 |
Open |
Open |
Open |
2 & 3 |
1 & 2 |
SL80486DX2 |
Open |
Open |
Open |
2 & 3 |
1 & 2 |
SL80486DX4 |
Open |
Open |
Open |
2 & 3 |
1 & 2 |
P24D |
1 & 2, 3 & 4 |
Open |
Open |
2 & 3 |
1 & 2 |
P24T |
1 & 2, 3 & 4 |
Open |
Open |
2 & 3 |
1 & 2 |
CX5X86 |
1 & 2, 3 & 4 |
Open |
Open |
2 & 3 |
1 & 2 |
(SL)AM X5 |
1 & 2, 3 & 4 |
Open |
Open |
2 & 3 |
1 & 2 |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION | |||
Type |
R1 |
R2 |
R2 |
80486SX |
Pins 1 10 closed |
Not installed |
Not installed |
SL80486SX |
Pins 3 13 closed |
Not installed |
Not installed |
AM486DX |
Pins 1 10 closed |
Not installed |
Not installed |
(SL)AM486DX |
Pins 1 10 closed |
Not installed |
Not installed |
80486DX |
Pins 1 10 closed |
Not installed |
Not installed |
SL80486DX |
Pins 3 13 closed |
Not installed |
Not installed |
CX486DX2 |
Installed |
Not installed |
Not installed |
IBM486DX2 |
Installed |
Not installed |
Not installed |
SGS486DX2 |
Installed |
Not installed |
Not installed |
TI486DX2 |
Installed |
Not installed |
Not installed |
AM486DX2 |
Pins 1 10 closed |
Not installed |
Not installed |
ODP486DX2 |
Pins 3 13 closed |
Not installed |
Not installed |
80486DX2 |
Pins 1 10 closed |
Not installed |
Not installed |
SL80486DX2 |
Pins 3 13 closed |
Not installed |
Not installed |
SL80486DX4 |
Pins 3 13 closed |
Not installed |
Not installed |
P24D |
Pins 5 14 closed |
Not installed |
Not installed |
P24T |
Pins 5 14 closed |
Not installed |
Not installed |
CX5X86 |
Pins 3 13 closed |
Not installed |
Not installed |
(SL)AM X5 |
Pins 5 14 closed |
Not installed |
Not installed |
CPU VOLTAGE SELECTION | |||
Voltage |
JP1 |
JV1 | |
3v |
Open |
Open | |
4v |
Closed |
Open | |
5v |
Open |
Pins 1 & 2, 3 & 4, 5 & 6 closed |
DMA CHANNEL SELECTION | ||
Channel |
JP3 |
JP4 |
1 |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
3 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |