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  | 
 
  | 
 
  | 
| 
 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  |