ACHME COMPUTER, INC.
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 |