UNIDENTIFIED
486V.VII.3
| 
 Processor  | 
 CX486S/80486SX/80486SX2/CX486DX/ODP486/80486DX/CX486DX2/ 80486DX2/ 80486DX4/Pentium Overdrive  | 
| 
 Processor Speed  | 
 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Max. Onboard DRAM  | 
 64MB  | 
| 
 Cache  | 
 128/256/512KB  | 
| 
 BIOS  | 
 Award  | 
| 
 Dimensions  | 
 254mm x 218mm  | 
| 
 I/O Options  | 
 32-bit VESA local bus slots (3), green PC connector  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 External battery  | 
 J1  | 
 Speaker  | 
 J6  | 
| 
 Turbo switch  | 
 J2  | 
 Green PC connector  | 
 J7  | 
| 
 Turbo LED  | 
 J3  | 
 Green PC connector  | 
 JP2  | 
| 
 Reset switch  | 
 J4  | 
 Green PC connector  | 
 JP3  | 
| 
 Power LED & keylock  | 
 J5  | 
 32-bit VESA local bus slots  | 
 SL1 - SL3  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 CMOS memory normal operation  | 
 JP4  | 
 Open  | 
| 
 CMOS memory clear  | 
 JP4  | 
 Closed  | |
| 
 DRAM CONFIGURATION  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 1MB  | 
 (1) 256K x 36  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 2MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 NONE  | 
 NONE  | 
| 
 2MB  | 
 NONE  | 
 (1) 512K x 36  | 
 NONE  | 
 NONE  | 
| 
 4MB  | 
 (1) 1M x 36  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 5MB  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 NONE  | 
 NONE  | 
| 
 6MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 6MB  | 
 NONE  | 
 (1) 512K x 36  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 8MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
 NONE  | 
| 
 8MB  | 
 NONE  | 
 (1) 2M x 36  | 
 NONE  | 
 NONE  | 
| 
 10MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 10MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 NONE  | 
 (1) 2M x 36  | 
| 
 10MB  | 
 NONE  | 
 (1) 512K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 10MB  | 
 NONE  | 
 (1) 512K x 36  | 
 NONE  | 
 (1) 2M x 36  | 
| 
 12MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 12MB  | 
 NONE  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 16MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
 (1) 2M x 36  | 
| 
 16MB  | 
 NONE  | 
 (1) 2M x 36  | 
 NONE  | 
 (1) 2M x 36  | 
| 
 16MB  | 
 NONE  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (1) 4M x 36  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 17MB  | 
 (1) 256K x 36  | 
 (1) 4M x 36  | 
 NONE  | 
 NONE  | 
| 
 18MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 4M x 36  | 
 NONE  | 
| 
 18MB  | 
 NONE  | 
 (1) 512K x 36  | 
 (1) 4M x 36  | 
 NONE  | 
| 
 20MB  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 NONE  | 
 NONE  | 
| 
 24MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 NONE  | 
| 
 24MB  | 
 NONE  | 
 (1) 2M x 36  | 
 (1) 4M x 36  | 
 NONE  | 
| 
 32MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 NONE  | 
 NONE  | 
| 
 32MB  | 
 NONE  | 
 (1) 8M x 36  | 
 NONE  | 
 NONE  | 
| 
 36MB  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 NONE  | 
| 
 40MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 40MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 NONE  | 
 (1) 8M x 36  | 
| 
 40MB  | 
 NONE  | 
 (1) 2M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 40MB  | 
 NONE  | 
 (1) 2M x 36  | 
 NONE  | 
 (1) 8M x 36  | 
| 
 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) 4M x 36  | 
 (1) 4M x 36  | 
 NONE  | 
 (1) 8M x 36  | 
| 
 64MB  | 
 NONE  | 
 (1) 8M x 36  | 
 NONE  | 
 (1) 8M x 36  | 
| 
 CACHE CONFIGURATION  | |||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 TAG  | 
| 
 128KB  | 
 (4) 32K x 8  | 
 NONE  | 
 (1) 8K x 8  | 
| 
 256KB  | 
 (4) 32K x 8  | 
 (4) 32K x 8  | 
 (1) 16K or (1) 32K x 8  | 
| 
 256KB  | 
 (4) 64K x 8  | 
 NONE  | 
 (1) 16K or (1) 32K x 8  | 
| 
 512KB  | 
 (4) 64K x 8  | 
 (4) 64K x 8  | 
 (1) 32K x 8  | 
| 
 512KB  | 
 (4) 128K x 8  | 
 NONE  | 
 (1) 32K x 8  | 
| 
 CACHE JUMPER CONFIGURATION  | ||
| 
 Size  | 
 JP12  | 
 JP21  | 
| 
 128KB  | 
 pins 1 & 2 closed  | 
 Open  | 
| 
 256KB  | 
 pins 2 & 3 closed  | 
 Open  | 
| 
 256KB  | 
 pins 1 & 2, 3 & 4 closed  | 
 Open  | 
| 
 512KB  | 
 pins 2 & 3, 4 & 5 closed  | 
 Closed  | 
| 
 512KB  | 
 pins 1 & 2, 3 & 4 closed  | 
 Closed  | 
| 
 CPU TYPE CONFIGURATION  | ||
| 
 Type  | 
 JP6  | 
 JP7  | 
| 
 CX486S  | 
 1 & 2, 3 & 4  | 
 2 & 3, 4 & 5, 7 & 8, 9 & 10  | 
| 
 80486SX  | 
 2 & 3, 4 & 5  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
| 
 80486SX2  | 
 2 & 3, 4 & 5  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
| 
 CX486DX  | 
 1 & 2, 3 & 4  | 
 2 & 3, 4 & 5, 7 & 8, 9 & 10  | 
| 
 ODP486  | 
 2 & 3, 4 & 5  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
| 
 80486DX  | 
 2 & 3, 4 & 5  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
| 
 CX486DX2  | 
 1 & 2, 3 & 4  | 
 2 & 3, 4 & 5, 7 & 8, 9 & 10  | 
| 
 80486DX2  | 
 2 & 3, 4 & 5  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
| 
 80486DX4 (2x)  | 
 2 & 3, 4 & 5  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
| 
 80486DX4 (2.5x)  | 
 2 & 3, 4 & 5  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
| 
 80486DX4 (3x)  | 
 2 & 3, 4 & 5  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
| 
 Pentium Overdrive  | 
 1 & 2, 4 & 5  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
| 
 Note: Pins designated should be in the closed position.  | ||
| 
 CPU TYPE CONFIGURATION (CON’T)  | |||
| 
 Type  | 
 JP11  | 
 JP14  | 
 JP15  | 
| 
 CX486S  | 
 Open  | 
 2 & 3, 5 & 6  | 
 3 & 4  | 
| 
 80486SX  | 
 Open  | 
 2 & 3, 4 & 5, 6 & 7  | 
 3 & 4  | 
| 
 80486SX2  | 
 Open  | 
 2 & 3, 4 & 5, 6 & 7  | 
 3 & 4  | 
| 
 CX486DX  | 
 Open  | 
 1 & 2, 5 & 6  | 
 3 & 4  | 
| 
 ODP486  | 
 Open  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
 3 & 4  | 
| 
 80486DX  | 
 Open  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
 3 & 4  | 
| 
 CX486DX2  | 
 Open  | 
 1 & 2, 5 & 6  | 
 1 & 2, 3 & 4  | 
| 
 80486DX2  | 
 Open  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
 3 & 4  | 
| 
 80486DX4 (2x)  | 
 2 & 3  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
 3 & 4  | 
| 
 80486DX4 (2.5x)  | 
 1 & 2  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
 3 & 4  | 
| 
 80486DX4 (3x)  | 
 Open  | 
 1 & 2, 3 & 4, 6 & 7, 8 & 9  | 
 3 & 4  | 
| 
 Pentium Overdrive  | 
 Open  | 
 1 & 2, 4 & 5, 6 & 7  | 
 4 & 5  | 
| 
 Note: Pins designated should be in the closed position.  | |||
| 
 CPU SPEED CONFIGURATION  | |||
| 
 Speed  | 
 JP17  | 
 JP19  | 
 JP20  | 
| 
 25MHz  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 33MHz  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 40MHz  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 50iMHz  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 50MHz  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 66iMHz  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 75iMHz  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 100iMHz  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 BUS SPEED CONFIGURATION  | |
| 
 CPU speed  | 
 JP24  | 
| 
 <= 33MHz  | 
 Open  | 
| 
 > 33MHz  | 
 Closed  |