ACHME COMPUTER, INC.
MS-4137 (VLB 486 AL5)
Processor | 80486SX/CX486M7/AMD486DXL/80486DX/80486DX2/Pentium Overdrive |
Processor Speed | 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz |
Chip Set | ALI |
Max. Onboard DRAM | 64MB |
Cache | 128/256KB |
BIOS | AMI |
Dimensions | 254mm 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 | JG1 |
Speaker | JFP (pins 7-10) | Green PC connector | JG2 |
Green PC connector | JFP (pins 9-10) | Green PC connector | JG3 |
Turbo LED | JFP (pins 12-13) | 32-bit VESA local bus slots | SL1 - SL3 |
Turbo switch | JFP (pins 15-17) | ||
Note: If speaker is installed, JFP (pins 9-10) are not used. |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Battery type select internal | JB | pins 2 & 3 closed |
Battery type select external | JB | Closed | |
» | CPU type select Intel/AMD | JC1 | pins 1 & 2 closed |
CPU type select Cyrix | JC1 | pins 2 & 3 closed | |
» | Factory configured - do not alter | JC2 | Open |
» | Factory configured - do not alter | JC3 | Open |
» | Factory configured - do not alter | JC9 | Open |
» | CPU type select P24C not installed | JK5 | Closed |
CPU type select P24C installed | JK5 | Open | |
» | 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 | Bank 3 |
1MB | (1) 256K x 36 | NONE | NONE | NONE |
2MB | (1) 256K x 36 | (1) 256K x 36 | NONE | NONE |
3MB | (1) 256K x 36 | (1) 512K x 36 | NONE | NONE |
3MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
3MB | (1) 512K x 36 | (1) 256K x 36 | NONE | NONE |
4MB | (1) 1M x 36 | NONE | NONE | NONE |
4MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
4MB | (1) 512K x 36 | (1) 512K x 36 | NONE | NONE |
4MB | (1) 512K x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
5MB | (1) 256K x 36 | (1) 1M x 36 | NONE | NONE |
5MB | (1) 1M x 36 | (1) 256K x 36 | NONE | NONE |
6MB | (1) 1M x 36 | (1) 512K x 36 | NONE | NONE |
6MB | (1) 256K x 36 | (1) 256K x 36 | (1) 1M x 36 | NONE |
6MB | (1) 256K x 36 | (1) 1M x 36 | (1) 256K x 36 | NONE |
6MB | (1) 512K x 36 | (1) 1M x 36 | NONE | NONE |
7MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 1M x 36 |
7MB | (1) 512K x 36 | (1) 256K x 36 | (1) 1M x 36 | NONE |
8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
9MB | (1) 256K x 36 | (1) 2M x 36 | NONE | NONE |
9MB | (1) 256K x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
9MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 | NONE |
9MB | (1) 2M x 36 | (1) 256K x 36 | NONE | NONE |
10MB | (1) 512K x 36 | (1) 2M x 36 | NONE | NONE |
10MB | (1) 2M x 36 | (1) 512K x 36 | NONE | NONE |
10MB | (1) 2M x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
10MB | (1) 512K x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
12MB | (1) 1M x 36 | (1) 2M x 36 | NONE | NONE |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
12MB | (1) 2M x 36 | (1) 1M x 36 | NONE | NONE |
DRAM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
13MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 |
13MB | (1) 2M x 36 | (1) 256K x 36 | (1) 1M x 36 | NONE |
16MB | (1) 4M x 36 | NONE | NONE | NONE |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE |
16MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
17MB | (1) 256K x 36 | (1) 4M x 36 | NONE | NONE |
17MB | (1) 4M x 36 | (1) 256K x 36 | NONE | NONE |
18MB | (1) 4M x 36 | (1) 512K x 36 | NONE | NONE |
18MB | (1) 256K x 36 | (1) 256K x 36 | (1) 4M x 36 | NONE |
18MB | (1) 512K x 36 | (1) 4M x 36 | NONE | NONE |
19MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 4M x 36 |
19MB | (1) 512K x 36 | (1) 256K x 36 | (1) 4M x 36 | NONE |
20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
21MB | (1) 256K x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x 36 | NONE |
22MB | (1) 512K x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
22MB | (1) 512K x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
24MB | (1) 4M x 36 | (1) 2M x 36 | NONE | NONE |
24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
24MB | (1) 2M x 36 | (1) 4M x 36 | NONE | NONE |
24MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
25MB | (1) 2M x 36 | (1) 256K x 36 | (1) 4M x 36 | NONE |
28MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 |
28MB | (1) 2M x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
33MB | (1) 256K x 36 | (1) 8M x 36 | NONE | NONE |
33MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x 36 | NONE |
33MB | (1) 8M x 36 | (1) 256K x 36 | NONE | NONE |
34MB | (1) 512K x 36 | (1) 8M x 36 | NONE | NONE |
34MB | (1) 8M x 36 | (1) 512K x 36 | NONE | NONE |
34MB | (1) 8M x 36 | (1) 256K x 36 | (1) 256K x 36 | NONE |
36MB | (1) 1M x 36 | (1) 8M x 36 | NONE | NONE |
36MB | (1) 4M x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 | NONE |
36MB | (1) 8M x 36 | (1) 1M x 36 | NONE | NONE |
37MB | (1) 8M x 36 | (1) 256K x 36 | (1) 1M x 36 | NONE |
40MB | (1) 2M x 36 | (1) 8M x 36 | NONE | NONE |
40MB | (1) 8M x 36 | (1) 2M x 36 | NONE | NONE |
DRAM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
40MB | (1) 8M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
48MB | (1) 4M x 36 | (1) 8M x 36 | NONE | NONE |
48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | NONE |
48MB | (1) 8M x 36 | (1) 4M x 36 | NONE | NONE |
49MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x 36 |
49MB | (1) 8M x 36 | (1) 256K x 36 | (1) 4M x 36 | NONE |
52MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 |
52MB | (1) 8M x 36 | (1) 1M 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 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
128KB | (4) 32K x 8 | NONE | (1) 8K/16K/32K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 16K/32K x 8 |
256KB | (4) 64K x 8 | NONE | (1) 16K/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 |
CPU TYPE CONFIGURATION | |||
Type | JC4 | JC5 | JC6 |
80486SX | 2 & 3 | 4 & 5 | Open |
SL80486SX | 2 & 3 | 5 & 6 | JC5 pin1 & JC6 pin1 |
80486DX/DX2 | 1 & 2, 3 & 4 | 4 & 5 | 3 & 4 |
CX486M7 | 1 & 2, 3 & 4 | 2 & 3, 5 & 6 | 3 & 4, 5 & 6 |
AMD486DXL | 1 & 2, 3 & 4 | 4 & 5 | 3 & 4 |
SL80486DX/DX2/DX4 | 1 & 2, 3 & 4 | 5 & 6 | 3 & 4, JC5 pin1 & JC6 pin1 |
Pentium Overdrive | 1 & 2, 3 & 4 | 5 & 6 | 2 & 3, JC5 pin1 & JC6 pin1 |
Note: Pins designated should be in the closed position. |
CPU TYPE CONFIGURATION (CON’T) | ||
Type | JC7 | JC8 |
80486SX | Open | pins 4 & 5 closed |
SL80486SX | 5 & 6 | JC7 pin1 & JC8 pin1 |
80486DX/DX2 | Open | 4 & 5 |
CX486M7 | 2 & 3, 4 & 5 | 4 & 5 |
AMD486DXL | JC6 pin1 & JC7 pin1, JC6 pin5 & JC7 pin5 | 4 & 5 |
SL80486DX/DX2/DX4 | 5 & 6 | 4 & 5, JC7 pin1 & JC8 pin1 |
Pentium Overdrive | 5 & 6 | 4 & 5, JC7 pin1 & JC8 pin1 |
Note: Pins designated should be in the closed position. |
CPU SPEED CONFIGURATION | ||||
Speed | JK1 | JK2 | JK3 | JK4 |
25MHz | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 6, 4 & 9, 5 & 10 |
33MHz | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 6, 2 & 7, 3 & 8, 4 & 9, 5 & 10 |
40MHz | 2 & 3 | 4 & 5 | 2 & 3 | 2 & 7, 5 & 10 |
50iMHz | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 6, 4 & 9, 5 & 10 |
50MHz | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 6, 4 & 9 |
66iMHz | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 6, 2 & 7, 3 & 8, 4 & 9, 5 & 10 |
75iMHz | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 6, 4 & 9, 5 & 10 |
100iMHz | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 6, 2 & 7, 3 & 8, 4 & 9, 5 & 10 |
Note: Pins designated should be in the closed position. |
VOLTAGE CONFIGURATION | |
Voltage | J50 |
3.3v | pins 1 & 2, 3 & 4, 5 & 6 closed |
5v | pins 7 & 8, 9 & 10 11 & 12closed |
Note: The mainboard can only support 5v when a 3.3v regulator is not installed. |