ACHME COMPUTER, INC.
MS-4138
Processor | SL80486SX/80486SX/AM486DXL/CXM7/SL80486DX/80486DX/80486DX2/ Pentium Overdrive |
Processor Speed | 25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | SIS |
Max. Onboard DRAM | 32MB |
Cache | 128/256/512KB |
BIOS | AMI |
Dimensions | 254mm x 218mm |
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 6 - 10 | Green PC LED | JG2 |
Turbo LED | JFP pins 12 - 13 | Green PC connector | JG3 |
Turbo switch | JFP pins 15 - 17 | 32-bit VESA local bus slots | SL1 - SL3 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Battery type select internal | JB | pins 2 & 3 closed |
Battery type select external | JB | Closed | |
» | Factory configured - do not alter | JC5 | N/A |
» | Monitor type select monochrome | JP1 | Open |
Monitor type select color | JP1 | 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 |
2MB | (1) 512K x 36 | NONE | NONE | NONE |
4MB | (1) 256K x 36 | (1) 256K x 36 | (1) 512K x 36 | NONE |
4MB | (1) 512K x 36 | (1) 512K x 36 | NONE | NONE |
4MB | (1) 1M x 36 | NONE | NONE | NONE |
5MB | (1) 256K x 36 | (1) 1M x 36 | NONE | NONE |
6MB | (1) 256K x 36 | (1) 256K x 36 | (1) 1M x 36 | NONE |
6MB | (1) 512K x 36 | (1) 1M x 36 | NONE | NONE |
8MB | (1) 256K x 36 | (1) 256K x 36 | (1) 512K x 36 | (1) 1M x 36 |
8MB | (1) 512K x 36 | (1) 512K x 36 | (1) 1M x 36 | NONE |
8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
8MB | (1) 2M x 36 | NONE | NONE | NONE |
10MB | (1) 256K x 36 | (1) 256K x 36 | (1) 1M x 36 | (1) 1M x 36 |
12MB | (1) 512K x 36 | (1) 512K x 36 | (1) 1M x 36 | (1) 1M x 36 |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
12MB | (1) 1M 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 |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 2M x 36 | NONE |
16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE |
16MB | (1) 4M x 36 | NONE | NONE | NONE |
17MB | (1) 256K x 36 | (1) 4M 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 |
20MB | (1) 512K x 36 | (1) 512K x 36 | (1) 4M x 36 | NONE |
20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
20MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x 36 | NONE |
24MB | (1) 512K x 36 | (1) 512K x 36 | (1) 1M x 36 | (1) 4M x 36 |
24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x 36 |
24MB | (1) 2M x 36 | (1) 4M x 36 | NONE | NONE |
24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | NONE |
28MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 4M x 36 | NONE |
32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
DRAM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
32MB | (1) 8M x 36 | NONE | NONE | NONE |
36MB | (1) 512K x 36 | (1) 512K x 36 | (1) 4M x 36 | (1) 4M x 36 |
36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | NONE |
40MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 4M x 36 |
40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 |
48MB | (1) 2M x 36 | (1) 2M x 36 | (1) 4M x 36 | (1) 4M x 36 |
48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | NONE |
48MB | (1) 4M x 36 | (1) 8M x 36 | NONE | NONE |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x 36 | NONE |
68MB | (1) 1M x 36 | (1) 8M x 36 | (1) 8M x 36 | NONE |
72MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x 36 | (1) 8M x 36 |
80MB | (1) 2M x 36 | (1) 2M x 36 | (1) 8M x 36 | (1) 8M x 36 |
80MB | (1) 4M x 36 | (1) 8M x 36 | (1) 8M x 36 | NONE |
96MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x 36 | (1) 8M x 36 |
96MB | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 | NONE |
128MB | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
128KB | (4) 32K x 8 | NONE | (1) 8K or (1) 16K or (1) 32K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 16K or (1) 32K x 8 |
256KB | (4) 64K x 8 | NONE | (1) 16K or (1) 32K x 8 |
512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||
Size | JS1 | JS2 | JS3 |
128KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
256KB | pins 2 & 3 closed | pins 2 & 3 closed | pins 1 & 2 closed |
256KB | pins 2 & 3 closed | pins 1 & 2 closed | pins 1 & 2 closed |
512KB | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
CPU TYPE CONFIGURATION | ||
Type | JC1 | JC2 |
SL80486SX | 2 & 3, 7 & 8, 9 & 10, 12 & 13 | 10 & 11 |
80486SX | 7 & 8 | 10 & 11 |
AM486DXL | 7 & 8, 11 & 12 | 5 & 6, 7 & 8, 9 & 10, 11 & 12 |
CXM7 | 1 & 2, 3 & 12, 4 & 11, 5 & 10, 7 & 8 | 4 & 13, 7 & 8, 9 & 10, 11 & 12 |
SL80486DX | 2 & 3, 7 & 8, 9 & 10, 12 & 13 | 7 & 8, 9 & 10, 11 & 12 |
80486DX | 7 & 8 | 7 & 8, 9 & 10, 11 & 12 |
80486DX2 | 7 & 8 | 7 & 8, 9 & 10, 11 & 12 |
Pentium Overdrive | 2 & 3, 7 & 8, 9 & 10, 12 & 13 | 6 & 7, 9 & 10, 11 & 12 |
Note: Pins designated should be in the closed position. |
CPU TYPE CONFIGURATION (CON’T) | ||
Type | JC3 | JC4 |
SL80486SX | pins 1 & 2 closed | pins 1 & 2 closed |
80486SX | Open | pins 1 & 2 closed |
AM486DXL | pins 2 & 3 closed | pins 3 & 4 closed |
CXM7 | pins 1 & 2 closed | pins 3 & 4 closed |
SL80486DX | pins 1 & 2 closed | pins 1 & 2 closed |
80486DX | pins 1 & 2 closed | pins 1 & 2 closed |
80486DX2 | pins 1 & 2 closed | pins 1 & 2 closed |
Pentium Overdrive | pins 1 & 2 closed | pins 1 & 2 closed |
CPU SPEED CONFIGURATION | ||
Speed | JK1 | JK2 |
25MHz | Open | pins 2 & 3 closed |
33MHz | pins 2 & 5, 3 & 4 closed | pins 2 & 3 closed |
40MHz | pins 3 & 4 closed | pins 2 & 3 closed |
50iMHz | Open | pins 2 & 3 closed |
50MHz | pins 1 & 6, 2 & 5 closed | pins 1 & 2 closed |
66iMHz | pins 2 & 5, 3 & 4 closed | pins 2 & 3 closed |
VESA WAIT STATE CONFIGURATION | |
Wait states | JP2 |
0 wait states | Open |
1 wait state | Closed |
BUS SPEED CONFIGURATION | |
CPU speed | JP3 |
<= 33MHz | Open |
> 33MHz | Closed |