MONOLITHIC SYSTEMS, INC. (COLORADO MSI)
SBC486PE PEISA SINGLE BOARD
| 
 Processor  | 
 80486SX/80386DX/80486DX2  | 
| 
 Processor Speed  | 
 25/33/40/50(internal)/50/66(internal)MHz  | 
| 
 Chip Set  | 
 Intel  | 
| 
 Max. Onboard DRAM  | 
 128MB  | 
| 
 Cache  | 
 128/256KB (on 32-bit external cache module)  | 
| 
 BIOS  | 
 AMI  | 
| 
 Dimensions  | 
 339mm x 127mm  | 
| 
 I/O Options  | 
 32-bit external cache module slot, PS/2 mouse port, PS/2 keyboard connector  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 IDE interface LED  | 
 J1  | 
 Power LED & keylock  | 
 J7  | 
| 
 Reset switch  | 
 J2  | 
 Auxiliary keyboard  | 
 J8  | 
| 
 Power LED  | 
 J3  | 
 PS/2 keyboard  | 
 J9  | 
| 
 External battery  | 
 J4  | 
 PS/2 mouse  | 
 J11  | 
| 
 Front panel switches & LEDs  | 
 J5  | 
 32-bit external cache module  | 
 S1  | 
| 
 Speaker  | 
 J6  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| » | 
 CMOS memory normal operation  | 
 J10  | 
 Open  | 
| 
 CMOS memory clear  | 
 J10  | 
 Closed  | |
| » | 
 Monitor type select color  | 
 J12  | 
 Closed  | 
| 
 Monitor type select monochrome  | 
 J12  | 
 Open  | |
| » | 
 Watchdog timer disabled  | 
 J13  | 
 pins 2 & 3 closed  | 
| 
 Watchdog timer enabled  | 
 J13  | 
 pins 1 & 2 closed  | |
| » | 
 Factory configured - do not alter  | 
 J14  | 
 Closed  | 
| » | 
 Factory configured - do not alter  | 
 J14  | 
 Closed  | 
| » | 
 DMA signal select active high  | 
 J16  | 
 pins 1 & 2 closed  | 
| 
 DMA signal select active low  | 
 J16  | 
 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) 512K 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  | 
| 
 6MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 NONE  | 
| 
 8MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
 NONE  | 
| 
 8MB  | 
 (1) 2M x 36  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 12MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 16MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 NONE  | 
 NONE  | 
| 
 16MB  | 
 (1) 4M x 36  | 
 NONE  | 
 NONE  | 
 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  | 
| 
 32MB  | 
 (1) 8M x 36  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 48MB  | 
 (1) 4M x 36  | 
 (1) 4M 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  | 
| 
 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  | 
| 
 Note:These are only some of the possible configurations. All modules must be of like capacity.  | ||||