RELIALOGIC CORPORATION PRIVATE, LTD.
R486DX 33 MIBBC
| 
 Processor  | 
 80486SX/80487SX/80486DX/80486DX2  | 
| 
 Processor Speed  | 
 25/33/50(internal)/66(internal)MHz  | 
| 
 Chip Set  | 
 UMC  | 
| 
 Max. Onboard DRAM  | 
 32MB  | 
| 
 Cache  | 
 64/128/256KB  | 
| 
 BIOS  | 
 AMI  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Power LED & keylock  | 
 J1  | 
 Turbo switch  | 
 J4  | 
| 
 Speaker  | 
 J2  | 
 Reset switch  | 
 J5  | 
| 
 Turbo LED  | 
 J3  | 
 External battery  | 
 J6  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Monitor type select CGA  | 
 JP5  | 
 Closed  | 
| 
 Monitor type select monochrome EGA/VGA  | 
 JP5  | 
 Open  | |
| 
 »  | 
 Battery type select internal  | 
 JP7  | 
 Closed  | 
| 
 Battery type select external  | 
 JP7  | 
 Open  | |
| 
 »  | 
 Factory configured - do not alter  | 
 JP8  | 
 Open  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP9  | 
 pins 1 & 2 closed  | 
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 1MB  | 
 (4) 256K x 9  | 
 NONE  | 
| 
 2MB  | 
 (4) 256K x 9  | 
 (1) 256K x 36  | 
| 
 4MB  | 
 (4) 1M x 9  | 
 NONE  | 
| 
 5MB  | 
 (4) 256K x 9  | 
 (1) 1M x 36  | 
| 
 8MB  | 
 (4) 1M x 9  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (4) 4M x 9  | 
 NONE  | 
| 
 20MB  | 
 (4) 1M x 9  | 
 (1) 4M x 36  | 
| 
 32MB  | 
 (4) 4M x 9  | 
 (1) 4M x 36  | 
| 
 CACHE CONFIGURATION  | |||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 TAG  | 
| 
 64KB  | 
 (4) 8K x 8  | 
 (4) 8K x 8  | 
 (2) 16K x 4  | 
| 
 128KB  | 
 (4) 32K x 8  | 
 NONE  | 
 (2) 16K x 4  | 
| 
 256KB  | 
 (4) 32K x 8  | 
 (4) 32K x 8  | 
 (2) 16K x 4  | 
| 
 CACHE JUMPER CONFIGURATION  | ||||||||
| 
 Size  | 
 W10  | 
 W11  | 
 W12  | 
 W13  | 
 W14  | 
 W15  | 
 W16  | 
 W17  | 
| 
 64KB  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 Open  | 
| 
 128KB  | 
 Closed  | 
 Open  | 
 Closed  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
 1 & 2  | 
| 
 256KB  | 
 Closed  | 
 Closed  | 
 Closed  | 
 Closed  | 
 2 & 3  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 Note: Pins designated should be in the closed position.  | ||||||||
| 
 CPU TYPE CONFIGURATION  | ||
| 
 Type  | 
 JP2  | 
 JP11  | 
| 
 80486SX  | 
 Open  | 
 pins 2 & 3 closed  | 
| 
 80487SX  | 
 pins 1 & 2 closed  | 
 pins 1 & 2, 3 & 4 closed  | 
| 
 80486DX/DX2  | 
 pins 2 & 3 closed  | 
 pins 1 & 2, 3 & 4 closed  |