SOYO COMPUTER CO., LTD.
SY-4SAW/2/W5
| 
 Processor  | 
 UMCU5S/80486SX/SL80486SX/80486SX2/SL80486SX2/CX486DX/ TI486DX/SGS486DX/80486DX/SL80486DX/CX486DX2/TI486DX2/ SGS486DX2/UMC486DX2/AM486DX2/80486DX2/SL80486DX2/ 80486DX4/TI486DX4/SGS486DX4/AM486DX4/80486DX4/P24D/P24T/ CX M1SC/AM X5  | 
| 
 Processor Speed  | 
 25/33/40/50(internal)/50/63(internal)/66(internal)/75(internal)/ 80(internal)/83(internal)100(internal)/120(internal)/133(internal)/ 150(internal)/160(internal)MHz  | 
| 
 Chip Set  | 
 SIS  | 
| 
 Maximum Onboard Memory  | 
 256MB  | 
| 
 Cache  | 
 256/512KB  | 
| 
 BIOS  | 
 Award  | 
| 
 Dimensions  | 
 250mm x 220mm  | 
| 
 I/O Options  | 
 32-bit VESA local bus slot, 32-bit PCI slots (4), green PC connector, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2)  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | 
| 
 Serial port 2  | 
 CN1  | 
 Speaker  | 
 J18  | 
| 
 Serial port 1  | 
 CN2  | 
 Reset switch  | 
 J19  | 
| 
 Floppy drive interface  | 
 CN3  | 
 External battery  | 
 J20  | 
| 
 Parallel port  | 
 CN4  | 
 Turbo switch  | 
 J21  | 
| 
 IDE interface 1  | 
 CN5  | 
 Turbo LED  | 
 J22  | 
| 
 IDE interface 2  | 
 CN6  | 
 IDE interface LED 2  | 
 JP17  | 
| 
 PS/2 mouse interface  | 
 J1  | 
 IDE interface LED 1  | 
 JP18  | 
| 
 Green PC connector  | 
 J7  | 
 32-bit PCI slots  | 
 PC1 - PC4  | 
| 
 Power LED & keylock  | 
 J17  | 
 32-bit VESA local bus slot  | 
 SL1  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Setting  | 
 Label  | 
 Position  | |
| 
 »  | 
 Factory configured - do not alter  | 
 JP1  | 
 Pins 1 & 2 closed  | 
| 
 BIOS type select EPROM/flash  | 
 JP2  | 
 Pins 2 & 3 closed  | |
| 
 BIOS type select flash  | 
 JP2  | 
 Pins 1 & 2 closed  | |
| 
 »  | 
 Monitor type select color  | 
 JP3  | 
 Closed  | 
| 
 Monitor type select monochrome  | 
 JP3  | 
 Open  | |
| 
 »  | 
 PS/2 mouse disabled  | 
 JP4  | 
 Open  | 
| 
 PS/2 mouse enabled  | 
 JP4  | 
 Closed  | |
| 
 »  | 
 CMOS memory normal operation  | 
 JP5  | 
 Pins 1 & 2 closed  | 
| 
 CMOS memory clear  | 
 JP5  | 
 Pins 2 & 3 closed  | |
| 
 »  | 
 Factory configured - do not alter  | 
 JP12  | 
 Pins 1 & 2 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP19  | 
 Pins 2 & 3 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP27  | 
 Pins 2 & 3 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP28  | 
 Pins 2 & 3 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP48  | 
 N/A  | 
| 
 »  | 
 Factory configured - do not alter  | 
 JP51  | 
 N/A  | 
| 
 DRAM  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 2MB  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
 None  | 
| 
 2MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
 None  | 
| 
 3MB  | 
 (1) 512K x 36  | 
 (1) 256K x 36  | 
 None  | 
 None  | 
| 
 3MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
| 
 3MB  | 
 (1) 256K x 36  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
| 
 4MB  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 4MB  | 
 (1) 512K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
| 
 4MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
| 
 4MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 DRAM (CON’T)  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 5MB  | 
 (1) 1M x 36  | 
 (1) 256K x 36  | 
 None  | 
 None  | 
| 
 5MB  | 
 (1) 512K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 5MB  | 
 (1) 256K x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 None  | 
| 
 5MB  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
| 
 6MB  | 
 (1) 1M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
| 
 6MB  | 
 (1) 1M x 36  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
| 
 6MB  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 None  | 
| 
 6MB  | 
 (1) 512K x 36  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
| 
 7MB  | 
 (1) 1M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 8MB  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 8MB  | 
 (1) 1M x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 None  | 
| 
 8MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
| 
 9MB  | 
 (1) 2M x 36  | 
 (1) 256K x 36  | 
 None  | 
 None  | 
| 
 9MB  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
| 
 9MB  | 
 (1) 256K x 36  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
| 
 10MB  | 
 (1) 2M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
| 
 10MB  | 
 (1) 2M x 36  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
| 
 10MB  | 
 (1) 512K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
| 
 10MB  | 
 (1) 512K x 36  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
| 
 11MB  | 
 (1) 2M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 12MB  | 
 (1) 2M x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 None  | 
| 
 12MB  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
| 
 12MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
| 
 12MB  | 
 (1) 1M x 36  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
| 
 13MB  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 14MB  | 
 (1) 512K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 16MB  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
| 
 16MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
| 
 16MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 17MB  | 
 (1) 4M x 36  | 
 (1) 256K x 36  | 
 None  | 
 None  | 
| 
 17MB  | 
 (1) 256K x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 None  | 
| 
 17MB  | 
 (1) 256K x 36  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
| 
 18MB  | 
 (1) 4M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
| 
 18MB  | 
 (1) 4M x 36  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
| 
 18MB  | 
 (1) 512K x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 None  | 
| 
 18MB  | 
 (1) 512K x 36  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
| 
 19MB  | 
 (1) 4M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 20MB  | 
 (1) 4M x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 None  | 
| 
 20MB  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
| 
 20MB  | 
 (1) 2M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 20MB  | 
 (1) 1M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 None  | 
| 
 20MB  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
| 
 DRAM (CON’T)  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 24MB  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
| 
 24MB  | 
 (1) 4M x 36  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
| 
 24MB  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 None  | 
| 
 24MB  | 
 (1) 2M x 36  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
| 
 28MB  | 
 (1) 4M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 32MB  | 
 (1) 8M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 32MB  | 
 (1) 4M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 None  | 
| 
 32MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
| 
 33MB  | 
 (1) 8M x 36  | 
 (1) 256K x 36  | 
 None  | 
 None  | 
| 
 33MB  | 
 (1) 256K x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 None  | 
| 
 33MB  | 
 (1) 256K x 36  | 
 (1) 8M x 36  | 
 None  | 
 None  | 
| 
 34MB  | 
 (1) 8M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
| 
 34MB  | 
 (1) 8M x 36  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
| 
 34MB  | 
 (1) 512K x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 None  | 
| 
 34MB  | 
 (1) 512K x 36  | 
 (1) 8M x 36  | 
 None  | 
 None  | 
| 
 35MB  | 
 (1) 8M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 36MB  | 
 (1) 8M x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 None  | 
| 
 36MB  | 
 (1) 8M x 36  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
| 
 36MB  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 None  | 
| 
 36MB  | 
 (1) 1M x 36  | 
 (1) 8M x 36  | 
 None  | 
 None  | 
| 
 40MB  | 
 (1) 8M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
| 
 40MB  | 
 (1) 8M x 36  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
| 
 40MB  | 
 (1) 2M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 None  | 
| 
 40MB  | 
 (1) 2M x 36  | 
 (1) 8M x 36  | 
 None  | 
 None  | 
| 
 44MB  | 
 (1) 8M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 48MB  | 
 (1) 8M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 None  | 
| 
 48MB  | 
 (1) 8M x 36  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
| 
 48MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 None  | 
| 
 48MB  | 
 (1) 4M x 36  | 
 (1) 8M x 36  | 
 None  | 
 None  | 
| 
 49MB  | 
 (1) 256K x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 50MB  | 
 (1) 512K x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 52MB  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 56MB  | 
 (1) 2M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 64MB  | 
 (1) 8M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 None  | 
| 
 64MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 None  | 
 None  | 
| 
 64MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 64MB  | 
 (1) 16M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 65MB  | 
 (1) 256K x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 None  | 
| 
 65MB  | 
 (1) 16M x 36  | 
 (1) 256K x 36  | 
 None  | 
 None  | 
| 
 66MB  | 
 (1) 16M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
| 
 66MB  | 
 (1) 16M x 36  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
| 
 66MB  | 
 (1) 512K x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 None  | 
| 
 DRAM (CON’T)  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 67MB  | 
 (1) 16M x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 68MB  | 
 (1) 16M x 36  | 
 (1) 512K x 36  | 
 (1) 512K x 36  | 
 None  | 
| 
 68MB  | 
 (1) 16M x 36  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
| 
 68MB  | 
 (1) 1M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 None  | 
| 
 72MB  | 
 (1) 16M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
| 
 72MB  | 
 (1) 16M x 36  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
| 
 72MB  | 
 (1) 2M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 None  | 
| 
 76MB  | 
 (1) 16M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 80MB  | 
 (1) 16M x 36  | 
 (1) 2M x 36  | 
 (1) 2M x 36  | 
 None  | 
| 
 80MB  | 
 (1) 16M x 36  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
| 
 80MB  | 
 (1) 8M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 80MB  | 
 (1) 4M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 None  | 
| 
 96MB  | 
 (1) 16M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 None  | 
| 
 96MB  | 
 (1) 16M x 36  | 
 (1) 8M x 36  | 
 None  | 
 None  | 
| 
 96MB  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 None  | 
| 
 112MB  | 
 (1) 16M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 128MB  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 None  | 
 None  | 
| 
 128MB  | 
 (1) 16M x 36  | 
 (1) 8M x 36  | 
 (1) 8M x 36  | 
 None  | 
| 
 192MB  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 None  | 
| 
 256MB  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
| 
 Note: Board also accepts x 32 SIMMs.  | ||||
| 
 CACHE SIZE  | ||
| 
 Size  | 
 Bank 0  | 
 TAG  | 
| 
 256KB  | 
 (4) 64K x 8  | 
 (1) 16K/32K x 8  | 
| 
 512KB  | 
 (4) 128K x 8  | 
 (1) 32K x 8  | 
| 
 CACHE JUMPER  | ||
| 
 Size  | 
 JP29  | 
 JP47  | 
| 
 256KB (Aster TAG)  | 
 Open  | 
 Pins 2 & 3 closed  | 
| 
 256KB (Winbond TAG)  | 
 Pins 1 & 2 closed  | 
 Open  | 
| 
 512KB  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 CPU TYPE  | ||||
| 
 Setting  | 
 JP30  | 
 JP31  | 
 JP32  | 
 JP33  | 
| 
 UMC U5S  | 
 Open  | 
 1 & 2, 3 & 4  | 
 1 & 2, 3 & 4  | 
 3 & 4  | 
| 
 80486SX  | 
 3 & 4  | 
 Open  | 
 2 & 3  | 
 Open  | 
| 
 SL80486SX  | 
 3 & 4  | 
 Open  | 
 2 & 3  | 
 Open  | 
| 
 80486SX2  | 
 3 & 4  | 
 Open  | 
 2 & 3  | 
 Open  | 
| 
 SL80486SX2  | 
 3 & 4  | 
 Open  | 
 2 & 3  | 
 Open  | 
| 
 CX486DX  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 TI486DX  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 SGS486DX  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 80486DX  | 
 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 SL80486DX  | 
 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 CX486DX2-50/66  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 CX486DX2-80  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 TI486DX2-50/66  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 TI486DX2-80  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 SGS486DX2-50/66  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 SGS486DX2-80  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 UMC486DX2  | 
 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 AM486DX2(NV8B)  | 
 1 & 2, 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 AM486DX2-66(NV8T)  | 
 3 & 4  | 
 1 & 2  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 AM486DX2-66  | 
 3 & 4  | 
 1 & 2  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 AM486DX2-80(NV8T)  | 
 3 & 4  | 
 1 & 2  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 AM486DX2-80  | 
 3 & 4  | 
 1 & 2  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 80486DX2  | 
 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 SL80486DX2  | 
 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 CX486DX4  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 TI486DX4  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 SGS486DX4  | 
 2 & 3  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 2 & 3  | 
| 
 AM486DX4(NV8T)  | 
 3 & 4  | 
 1 & 2  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 AM486DX4(NV8B)  | 
 1 & 2, 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 80486DX4 (5v)  | 
 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 80486DX4 (3.45v)  | 
 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 P24D  | 
 1 & 2, 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 P24T  | 
 3 & 4  | 
 2 & 3  | 
 1 & 2, 3 & 4  | 
 1 & 2  | 
| 
 CX M1SC  | 
 1 & 2, 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 AM X5-150  | 
 1 & 2, 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 AM X5-133/160  | 
 1 & 2, 3 & 4  | 
 3 & 4  | 
 1 & 2, 3 & 4  | 
 Open  | 
| 
 Note: Pins designated should be in the closed position.  | ||||
| 
 CPU TYPE (CON’T)  | ||||
| 
 Setting  | 
 JP34  | 
 JP36  | 
 JP37  | 
 JP38  | 
| 
 UMC U5S  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 80486SX  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 SL80486SX  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 80486SX2  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 SL80486SX2  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 CX486DX  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 TI486DX  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 SGS486DX  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 80486DX  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 SL80486DX  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 CX486DX2-50/66 (3.6v)  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 CX486DX2-50/66 (5v)  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 CX486DX2-80  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 TI486DX2-50/66 (3.6v)  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 TI486DX2-50/66 (5v)  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 TI486DX2-80  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 SGS486DX2-50/66 (3.6v)  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 SGS486DX2-50/66 (5v)  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 SGS486DX2-80  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 UMC486DX2  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 AM486DX2(NV8B)  | 
 1 & 2  | 
 Open  | 
 4 & 5  | 
 1 & 2  | 
| 
 AM486DX2-66(NV8T)  | 
 2 & 3  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 AM486DX2-66  | 
 2 & 3  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 AM486DX2-80(NV8T)  | 
 2 & 3  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 AM486DX2-80  | 
 2 & 3  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 80486DX2  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 SL80486DX2  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 CX486DX4  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 TI486DX4  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 SGS486DX4  | 
 Open  | 
 Open  | 
 2 & 3  | 
 2 & 3  | 
| 
 AM486DX4(NV8T)  | 
 1 & 2  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 AM486DX4(NV8B)  | 
 1 & 2  | 
 Open  | 
 4 & 5  | 
 1 & 2  | 
| 
 80486DX4 (5v)  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 80486DX4 (3.45v)  | 
 Open  | 
 Open  | 
 4 & 5  | 
 Open  | 
| 
 P24D  | 
 1 & 2  | 
 Open  | 
 4 & 5  | 
 1 & 2  | 
| 
 P24T  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
| 
 CX M1SC  | 
 1 & 2  | 
 Open  | 
 4 & 5  | 
 1 & 2  | 
| 
 AM X5-150  | 
 1 & 2  | 
 Open  | 
 4 & 5  | 
 1 & 2  | 
| 
 AM X5-133/160  | 
 1 & 2  | 
 Open  | 
 4 & 5  | 
 1 & 2  | 
| 
 Note: Pins designated should be in the closed position.  | ||||
| 
 CPU TYPE (CON’T)  | ||||
| 
 Setting  | 
 JP39  | 
 JP40  | 
 JP41  | 
 JP42  | 
| 
 UMC U5S  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 80486SX  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 SL80486SX  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 80486SX2  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 SL80486SX2  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 CX486DX  | 
 Unidentified  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 TI486DX  | 
 Unidentified  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 SGS486DX  | 
 Unidentified  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 80486DX  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 SL80486DX  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 CX486DX2-50/66 (3.6v)  | 
 5 & 6  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 CX486DX2-50/66 (5v)  | 
 5 & 6  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 CX486DX2-80  | 
 1 & 2  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 TI486DX2-50/66 (3.6v)  | 
 5 & 6  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 TI486DX2-50/66 (5v)  | 
 5 & 6  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 TI486DX2-80  | 
 1 & 2  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 SGS486DX2-50/66 (3.6v)  | 
 5 & 6  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 SGS486DX2-50/66 (5v)  | 
 5 & 6  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 SGS486DX2-80  | 
 1 & 2  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 UMC486DX2  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 AM486DX2(NV8B)  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 1 & 2  | 
 1 & 2  | 
| 
 AM486DX2-66(NV8T)  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 AM486DX2-66  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 AM486DX2-80(NV8T)  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 AM486DX2-80  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 80486DX2  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 SL80486DX2  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 CX486DX4  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 TI486DX4  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 SGS486DX4  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 AM486DX4 (NV8T)  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 AM486DX4(NV8B)  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 1 & 2  | 
 1 & 2  | 
| 
 80486DX4 (5v)  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 2 & 3  | 
| 
 80486DX4 (3.45v)  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 Open  | 
 2 & 3  | 
| 
 P24D  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 1 & 2  | 
 1 & 2  | 
| 
 P24T  | 
 3 & 4  | 
 1 & 3, 2 & 4  | 
 Open  | 
 1 & 2  | 
| 
 CX M1SC  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM X5-150  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 1 & 2  | 
 1 & 2  | 
| 
 AM X5-133/160  | 
 3 & 4  | 
 3 & 5, 4 & 6  | 
 1 & 2  | 
 1 & 2  | 
| 
 Note: Pins designated should be in the closed position.  | ||||
| 
 CPU TYPE (CON’T)  | ||||
| 
 Setting  | 
 JP43  | 
 JP44  | 
 JP45  | 
 JP46  | 
| 
 UMC U5S  | 
 Open  | 
 1 & 2  | 
 2 & 3  | 
 4 & 5  | 
| 
 80486SX  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 SL80486SX  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 80486SX2  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 SL80486SX2  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 CX486DX  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 TI486DX  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 SGS486DX  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 80486DX  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 SL80486DX  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 CX486DX2-50/66 (3.6v)  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 CX486DX2-50/66(5v)  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 CX486DX2-80  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 TI486DX2-50/66 (3.6v)  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 TI486DX2-50/66 (5v)  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 TI486DX2-80  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 SGS486DX2-50/66 (3.6v)  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 SGS486DX2-50/66 (5v)  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 SGS486DX2-80  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 UMC486DX2  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM486DX2(NV8B)  | 
 1 & 2  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM486DX2-66(NV8T)  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM486DX2-66  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM486DX2-80(NV8T)  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM486DX2-80  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 80486DX2  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 SL80486DX2  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 CX486DX4  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 TI486DX4  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 SGS486DX4  | 
 Open  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
| 
 AM486DX4 (NV8T)  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM486DX4(NV8B)  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 80486DX4 (5v)  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 80486DX4 (3.45v)  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 2 & 3  | 
| 
 P24D  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 P24T  | 
 Open  | 
 Open  | 
 1 & 2  | 
 2 & 3  | 
| 
 CX M1SC  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM X5-150  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM X5-133/160  | 
 1 & 2  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 Note: Pins designated should be in the closed position.  | ||||
| 
 CPU SPEED  | ||||
| 
 Setting  | 
 JP14  | 
 JP15  | 
 JP21  | 
 JP22  | 
| 
 25MHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Open  | 
 Open  | 
| 
 33MHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Closed  | 
 Closed  | 
| 
 40MHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Closed  | 
 Open  | 
| 
 50iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Open  | 
 Open  | 
| 
 50MHz  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
 Open  | 
 Closed  | 
| 
 63iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Open  | 
 Open  | 
| 
 66iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Closed  | 
 Closed  | 
| 
 75iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Open  | 
 Open  | 
| 
 80iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Closed  | 
 Open  | 
| 
 83iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Closed  | 
 Closed  | 
| 
 100iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Closed  | 
 Closed  | 
| 
 120iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Closed  | 
 Open  | 
| 
 133iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Closed  | 
 Closed  | 
| 
 150iMHz  | 
 Pins 2 & 3 closed  | 
 Pins 1 & 2 closed  | 
 Open  | 
 Closed  | 
| 
 160iMHz  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
 Closed  | 
 Open  | 
| 
 DMA  | ||
| 
 Setting  | 
 JP49  | 
 JP50  | 
| 
 None  | 
 Open  | 
 Open  | 
| 
 DMA1  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 DMA3  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  |