SILICON STAR INTERNATIONAL, INC.
AR4
| 
 Processor  | 
 80486SX/80487SX/80486DX/80486DX2  | 
| 
 Processor Speed  | 
 40/50(internal)/60/66(internal)MHz  | 
| 
 Chip Set  | 
 ALI  | 
| 
 Max. Onboard DRAM  | 
 32MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Award  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 External battery  | 
 J4  | 
 Turbo switch/LED  | 
 J21  | 
| 
 Reset switch  | 
 J19  | 
 Keylock  | 
 J22  | 
| 
 Speaker  | 
 J20  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Monitor type select color  | 
 JP1  | 
 pins 2 & 3 closed  | 
| 
 Monitor type select monochrome  | 
 JP1  | 
 pins 1 & 2 closed  | |
| 
 Factory configured - do not alter  | 
 JP2  | 
 on  | |
| 
 CPU set at 80486SX (PQFP)  | 
 JP7  | 
 pins 1 & 2 closed  | |
| 
 CPU set at 80486SX (PGA)  | 
 JP7  | 
 pins 2 & 3 closed  | |
| 
 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  | 
| 
 8MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
| 
 16MB  | 
 (4) 4M x 9  | 
 NONE  | 
| 
 32MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  | 
| 
 CPU TYPE CONFIGURATION  | ||
| 
 CPU Type  | 
 JP4  | 
 JP5  | 
| 
 80486SX  | 
 Open  | 
 pin 1 & 2 closed  | 
| 
 80487SX  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
| 
 80486DX  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 80486DX2  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 AT BUS CLOCK CONFIGURATION  | ||
| 
 Speed  | 
 JP3  | 
 JP6  | 
| 
 40MHz  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 50MHz  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
| 
 66MHz  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  |