PIONEER COMPUTER, INC.
VANTAGE 486NC SX-20/25/33
| 
 Processor  | 
 80486SX/ODP486SX  | 
| 
 Processor Speed  | 
 20/25/33/40(internal)/50(internal)/66(internal)MHz  | 
| 
 Chip Set  | 
 OPTI  | 
| 
 Max. Onboard DRAM  | 
 32MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Phoenix  | 
| 
 Dimensions  | 
 240mm x 220mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 80487SX  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Turbo LED  | 
 J2  | 
 Speaker  | 
 J5  | 
| 
 Turbo switch  | 
 J3  | 
 Power LED & keylock  | 
 J6  | 
| 
 Reset switch  | 
 J4  | 
 External battery  | 
 J7  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| » | 
 CMOS memory normal operation  | 
 JP3  | 
 pins 1 & 2 closed  | 
| 
 CMOS memory clear  | 
 JP3  | 
 pins 2 & 3 closed  | |
| » | 
 80487SX or ODP486SX upgrade not installed  | 
 JP4  | 
 pins 1 & 2 closed  | 
| 
 80487SX or ODP486SX upgrade installed  | 
 JP4  | 
 pins 2 & 3 closed  | |
| » | 
 Factory configured - do not alter  | 
 JP6  | 
 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) 1M x 9  | 
 (4) 256K x 9  | 
| 
 8MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
| 
 16MB  | 
 (4) 4M x 9  | 
 NONE  | 
| 
 32MB  | 
 (4) 4M x 9  | 
 (4) 4M x 9  |