MYLEX CORPORATION
MSL486 SLIMLINE
Processor | 80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
Processor Speed | 16/20/25/33/50 (Internal)/66 (Internal) |
Chip Set | Headland |
Max. onboard DRAM | 32MB |
Cache | None |
BIOS | Mylex |
Dimensions | 330mm x 218mm |
I/O Options | Floppy drive interface, IDE interface, parallel port, serial ports (2), VGA port |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | P1 | Parallel port | P7 |
Power LED & keylock | P2 | Serial port (COM2) | P8 |
Speaker | P3 | Serial port (COM1) | P9 |
IDE interface LED | P4 | IDE interface | P12 |
Reset switch | P5 | Floppy drive interface | P13 |
VGA port | P6 |
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USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | Factory configured - do not alter | J5 | N/A |
» | Factory configured - do not alter | J11 | N/A |
» | Parallel port select unidirectional (printer) | J12 & J13 | Closed |
| Parallel port select bi-directional | J12 & J13 | Open |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE |
5MB | (4) 256K x 9 | (4) 1M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
17MB | (4) 256K x 9 | (4) 4M x 9 |
20MB | (4) 1M x 9 | (4) 4M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
VRAM CONFIGURATION | |||
Size | VRAM (U5,U6,U9,U10) | J6 | J7 |
512KB | None | On | Off |
1MB | (4) 256K x 4 | Off | On |
CPU SPEED CONFIGURATION | |||
Size | J8 | J9 | J10 |
16MHz | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
20MHz | pins 1 & 2 closed | pins 1 & 2 closed | pins 2 & 3 closed |
25MHz | pins 2 & 3 closed | pins 2 & 3 closed | pins 1 & 2 closed |
33MHz | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed |
50i MHz | pins 2 & 3 closed | pins 2 & 3 closed | pins 1 & 2 closed |
66i MHz | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed |
CPU TYPE CONFIGURATION | ||||
CPU Type | J1 | J2 | J3 | J4 |
80486SX | Open | Open | pins 2 & 3 closed | Open |
80487SX | Open | pins 1 & 2 closed | pins 1 & 2 closed | pins 2 & 3 closed |
80486DX | Open | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
ODP486SX | Open | pins 1 & 2 closed | pins 1 & 2 closed | pins 2 & 3 closed |
80486DX2 | Open | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |