ACHME COMPUTER, INC.
MS-4131G (VLB 486 AL2G)
|
Processor |
80486SX/80487SX/CX486M7/AMD486DX/AMD486DXL/80486DX/80486DX2/ Pentium Overdrive |
|
Processor Speed |
20/25/33/40/50(internal)/50/66(internal)66MHz |
|
Chip Set |
ALI |
|
Max. Onboard DRAM |
64MB |
|
Cache |
128/256/512KB |
|
BIOS |
AMI/Award/Phoenix |
|
Dimensions |
260mm x 220mm |
|
I/O Options |
32-bit VESA local bus slots (3), green PC connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
JB |
Reset switch |
JFP pins 19 - 20 |
|
Power LED & keylock |
JFP pins 1 -5 |
Green PC connector (monitor) |
JG1 |
|
Speaker |
JFP pins 7 - 10 |
Green PC LED connector |
JG2 |
|
Turbo LED |
JFP pins 12 - 13 |
Green PC connector (sleep mode) |
JG3 |
|
Turbo switch |
JFP pins 15 - 17 |
32-bit VESA Local bus slots |
SL1 - SL3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
On board battery installed |
JB |
pins 2 & 3 closed |
|
External battery installed |
JB |
pins 1 & 2, 3 & 4 closed | |
|
|
PQFP CPU disabled |
JC4 |
Closed |
|
PQFP CPU enabled |
JC4 |
Open | |
|
|
Factory configured - do not alter |
JC6 |
N/A |
|
|
Monitor type select monochrome |
JP1 |
pins 1 & 2 closed |
|
Monitor type select color |
JP1 |
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 |
NONE |
NONE |
(1) 512K x 36 |
|
2MB |
NONE |
(1) 512K x 36 |
NONE |
|
2MB |
NONE |
(1) 256K x 36 |
(1) 256K x 36 |
|
2MB |
(4) 256K x 9 |
(1) 256K x 36 |
NONE |
|
3MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
|
3MB |
NONE |
(1) 256K x 36 |
(1) 512K 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 |
NONE |
(1) 256K x 36 |
(1) 1M x 36 |
|
5MB |
(4) 256K x 9 |
(1) 1M x 36 |
NONE |
|
5MB |
(4) 1M x 9 |
(1) 256K x 36 |
NONE |
|
6MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 256K x 36 |
|
6MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 1M x 36 |
|
6MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 256K 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 |
NONE |
NONE |
(1) 2M x 36 |
|
8MB |
NONE |
(1) 2M x 36 |
NONE |
|
8MB |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
|
8MB |
(4) 1M x 9 |
(1) 1M x 36 |
NONE |
|
9MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
9MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 1M x 36 |
|
9MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 256K x 36 |
|
9MB |
NONE |
(1) 256K x 36 |
(1) 2M x 36 |
|
10MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 512K x 36 |
|
10MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 2M x 36 |
|
DRAM CONFIGURATION (CONT) | |||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
10MB |
NONE |
(1) 512K x 36 |
(1) 2M x 36 |
|
12MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
12MB |
NONE |
(1) 1M x 36 |
(1) 2M x 36 |
|
13MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 2M x 36 |
|
13MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 2M x 36 |
|
16MB |
NONE |
NONE |
(1) 4M x 36 |
|
16MB |
NONE |
(1) 4M x 36 |
NONE |
|
16MB |
NONE |
(1) 2M x 36 |
(1) 2M x 36 |
|
16MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 2M x 36 |
|
17MB |
(4) 256K x 9 |
(1) 4M x 36 |
NONE |
|
17MB |
NONE |
(1) 256K x 36 |
(1) 4M x 36 |
|
18MB |
NONE |
(1) 512K x 36 |
(1) 4M 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 |
NONE |
(1) 1M x 36 |
(1) 4M x 36 |
|
21MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 4M x 36 |
|
21MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 4M x 36 |
|
21MB |
(4) 256K x 9 |
(1) 4M x 36 |
(1) 1M x 36 |
|
21MB |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 256K x 36 |
|
21MB |
(4) 4M x 9 |
(1) 256K x 36 |
(1) 1M x 36 |
|
21MB |
(4) 1M x 9 |
(1) 256K x 36 |
(1) 8M x 36 |
|
22MB |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 512K x 36 |
|
24MB |
(4) 4M x 9 |
(1) 1M x 36 |
(1) 1M x 36 |
|
24MB |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 1M x 36 |
|
24MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 4M x 36 |
|
24MB |
NONE |
(1) 2M x 36 |
(1) 4M x 36 |
|
25MB |
(4) 256K x 9 |
(1) 4M x 36 |
(1) 2M x 36 |
|
25MB |
(4) 4M x 9 |
(1) 256K x 36 |
(1) 2M x 36 |
|
28MB |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 2M x 36 |
|
28MB |
(4) 4M x 9 |
(1) 1M x 36 |
(1) 2M x 36 |
|
32MB |
(4) 4M x 9 |
NONE |
(1) 4M x 36 |
|
32MB |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
|
32MB |
NONE |
(1) 8M x 36 |
NONE |
|
32MB |
NONE |
NONE |
(1) 8M x 36 |
|
32MB |
(4) 4M x 9 |
(1) 4M x 36 |
NONE |
|
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 |
|
33MB |
(4) 256K x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
|
33MB |
NONE |
(1) 256K x 36 |
(1) 8M x 36 |
|
33MB |
(4) 4M x 9 |
(1) 256K x 36 |
(1) 4M x 36 |
|
34MB |
(4) 4M x 9 |
(1) 256K x 36 |
(1) 256K x 36 |
|
34MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 512K x 36 |
|
DRAM CONFIGURATION (CONT) | |||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
34MB |
(4) 256K x 9 |
(1) 256K x 36 |
(1) 8M x 36 |
|
34MB |
NONE |
(1) 512K x 36 |
(1) 8M x 36 |
|
36MB |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
|
36MB |
(4) 4M x 9 |
(1) 1M x 36 |
(1) 4M x 36 |
|
36MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 1M x 36 |
|
36MB |
NONE |
(1) 1M x 36 |
(1) 8M x 36 |
|
37MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 8M x 36 |
|
37MB |
(4) 256K x 9 |
(1) 1M x 36 |
(1) 8M x 36 |
|
37MB |
(4) 4M x 9 |
(1) 1M x 36 |
(1) 256K x 36 |
|
40MB |
(4) 1M x 9 |
(1) 1M x 36 |
(1) 8M x 36 |
|
40MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 2M x 36 |
|
40MB |
NONE |
(1) 2M x 36 |
(1) 8M x 36 |
|
48MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 4M x 36 |
|
48MB |
NONE |
(1) 4M x 36 |
(1) 8M x 36 |
|
49MB |
(4) 256K x 9 |
(1) 4M x 36 |
(1) 8M x 36 |
|
49MB |
(4) 4M x 9 |
(1) 256K x 36 |
(1) 8M x 36 |
|
52MB |
(4) 1M x 9 |
(1) 4M x 36 |
(1) 8M x 36 |
|
64MB |
NONE |
(1) 8M x 36 |
(1) 8M x 36 |
|
64MB |
(4) 4M x 9 |
(1) 4M x 36 |
(1) 8M x 36 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 or (1) 16K x 8 or (1) 32K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 16K x 8 or (1) 32K x 8 |
|
256KB |
(4) 64K x 8 |
NONE |
(1) 16K x 8 or (1) 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 |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
256KB |
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 TYPE CONFIGURATION | ||
|
Type |
JC1 |
JC2 |
|
CX486 M7 |
2A & 3A, 1B & 2B, 1C & 2C |
1 & 2, 3 & 4 |
|
80486SX |
1A & 2A, 1B & 2B, 1C & 2C |
2 & 3 |
|
SL 80486SX |
1A & 2A, 1B & 2B, 1C & 2C |
2 & 3 |
|
80487SX |
1A & 2A, 1B & 2B, 1C & 2C |
1 & 2, 3 & 4 |
|
AMD486DX/DXL |
1A & 2A, 1B & 2B, 1C & 2C |
1 & 2, 3 & 4 |
|
80486DX/DX2 |
1A & 2A, 1B & 2B, 1C & 2C |
1 & 2, 3 & 4 |
|
SL 80486DX/DX2 |
1A & 2A, 1B & 2B, 1C & 2C |
1 & 2, 3 & 4 |
|
Pentium Overdrive |
1A & 2A, 2B & 3B, 1C & 2C |
1 & 2, 3 & 4 |
|
Note: Pins designated should be in the closed position. | ||
|
CPU TYPE CONFIGURATION | ||
|
Type |
JC3 |
JC5 |
|
CX486 M7 |
2A & 3A, 4A & 5A, 3B & 4B, 5B & 6B, 3C & 4C, 5C & 6C |
1 & 2 |
|
80486SX |
4C & 5C |
1 & 2 |
|
SL 80486SX |
1A & 2A, 5A & 6A, 4C & 4D, 5C & 6C |
1 & 2 |
|
80487SX |
2B & 3B, 4C & 5C |
1 & 2 |
|
AMD486DX/DXL |
2A & 2B, 3B & 4B, 5A & 5B, 4C & 5C |
1 & 2 |
|
80486DX/DX2 |
3B & 4B, 4C & 5C |
1 & 2 |
|
SL 80486DX/DX2 |
1A & 2A, 3B & 4B, 4C & 4D, 5A & 6A, 5C & 6C |
1 & 2 |
|
Pentium Overdrive |
1A & 2A, 5A &6A, 2B & 3B, 5C & 6C |
2 & 3 |
|
Note: Pins designated should be in the closed position. | ||
|
CPU SPEED CONFIGURATION | |||
|
Speed |
JK1 |
JK2 |
JK3 |
|
25MHz |
1 & 2, 7 & 9, 8 & 10, 14 & 16 |
2 & 3 |
1 & 2 |
|
33MHz |
1 & 2, 3 & 4, 5 & 6, 7 & 9, 8 & 10, 14 & 16 |
2 & 3 |
1 & 2 |
|
40MHz |
3 & 4, 10 & 12, 14 & 16 |
1 & 2 |
2 & 3 |
|
AMD40MHz |
3 & 4, 10 & 12, 14 & 16 |
4 & 5 |
2 & 3 |
|
50iMHz |
1 & 2, 7 & 9, 8 & 10, 14 & 16 |
2 & 3 |
1 & 2 |
|
50MHz |
1 & 2, 7 & 9, 10 & 12 |
1 & 2 |
2 & 3 |
|
66iMHz |
1 & 2, 3 & 4, 5 & 6, 7 & 9, 8 & 10, 14 & 16 |
2 & 3 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||
|
BUS SPEED CONFIGURATION | |
|
CPU speed |
JP2 |
|
<=33MHz |
pins 1 & 2 closed |
|
>33MHz |
pins 2 & 3 closed |
|
VESA WAIT STATE CONFIGURATION | |
|
Wait states |
JP3 |
|
0 wait states |
pins 1 & 2 open |
|
1 wait state |
pins 1 & 2 closed |