YOUNG MICRO SYSTEMS, INC. VEGA 486 GREEN PC Processor CX486SX/AMD80486SX/80486SX/CX487DX/AMD80486DX/80486DX 80486DX2/80486DX4/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set Symphony Wagner Max. 128MB Onboard DRAM Cache 64/128/256/512/1024KB BIOS AMI/Phoenix Dimensions 254mm x 218mm I/O 32-bit VESA local bus slots (3), PS/2 mouse port Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock J1 Turbo LED J5 Speaker J2 PS/2 mouse port J6 Turbo switch J3 Power suspend JP15 Reset switch J4 32-bit VESA Local SL1, SL2,SL3 bus slots USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not J27 Open alter » Factory configured - do not J28 Open alter » Factory configured - do not J29 Open alter » Factory configured - do not J30 Open alter » Factory configured - do not J31 Open alter » Factory configured - do not J32 Open alter » Factory configured - do not J33 Open alter » Factory configured - do not J34 Open alter » Factory configured - do not JP3 Open alter » Factory configured - do not JP9 Open alter » Tag RAM separated JP16 pins 1 & 2 closed Tag RAM combined JP16 pins 2 & 3 closed » Factory configured - do not JP17 Open alter » Flash BIOS write protect enabled JP18 pins 1 & 2 closed Flash BIOS write protect JP18 pins 2 & 3 disabled closed » Factory configured - do not JP19 Open alter » Factory configured - do not JP22 Open alter » Factory configured - do not JP28 Open alter » Factory configured - do not JP29 Open alter » Factory configured - do not JP30 Open alter » Factory configured - do not JP31 Open alter DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x NONE NONE NONE 36 4MB (1) 512K x (1) 512K x NONE NONE 36 36 4MB (1) 1M x 36 NONE NONE NONE 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (1) 2M x 36 NONE NONE NONE 16MB (1) 4M x 36 NONE NONE NONE 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 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 96MB (1) 8M x 36 (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG (U1) TAG (U2) 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 8K x 8 (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 (1) 32K x 8 512KB (4) 128K x NONE (1) 32K x 8 (1) 32K x 8 8 1MB (4) 128K x (4) 128K x (1) 128K x (1) 128K x 8 8 8 8 CACHE JUMPER CONFIGURATION Size JD1 JD2 JT1 JT2 JT3 64KB 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 128KB 1 & 2 1 & 2 2 & 3 1 & 2 1 & 2 256KB 2 & 3 2 & 3 2 & 3 2 & 3 1 & 2 512KB 1 & 2 1 & 2 2 & 3 2 & 3 2 & 3 1MB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CYRIX) Type JP1 JP2 JP4 JP5 JP6 JP7 JP8 JP10 486SX Open Open Open 2 & Closed 1 & Closed Open (1X) 3 2 486SX Open Open Open 2 & Closed 1 & Closed Open (2X) 3 2 487DX Open Open Open 1 & Closed 1 & Closed Open (1X) 2 2 487DX Open Open Open 1 & Closed 1 & Closed Open (2X) 2 2 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CYRIX) Type JP11 JP12 JP13 JP23 JP24 JP41 JP42 486SX Open Open Closed Closed Closed Open Open (1X) 486SX Open Closed Closed Closed Closed Open Open (2X) 487DX 1 & 2 Open Closed Closed Closed Open Open (1X) 487DX 1 & 2 Closed Closed Closed Closed Open Open (2X) Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (AMD) Type JP1 JP2 JP4 JP5 JP6 JP7 JP8 JP10 486SX Open Closed Open 2 & Closed Open Open Open (WT) 3 486SX Closed Closed Closed 2 & Closed Open Open Open (WB) 3 486DX Open Closed Open 2 & Closed Open Open Open (WT) 3 486DX Closed Closed Closed 2 & Closed Open Open Open (WB) 3 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (AMD) Type JP11 JP12 JP13 JP23 JP24 JP41 JP42 486SX Open Open Open Open Open 2 & 3 2 & 3 (WT) 486SX Open Open Open Open Open 2 & 3 2 & 3 (WB) 486DX 1 & 2 Open Open Open Open 2 & 3 2 & 3 (WT) 486DX 1 & 2 Open Open Open Open 2 & 3 2 & 3 (WB) Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (INTEL 486) Type JP1 JP2 JP4 JP5 JP6 JP7 JP8 JP10 486SX Open Open Open 2 & Closed Open Open Open 3 486SL Open Closed Open 1 & Closed Open Open Open 2 486DX/DX2 Open Open Open 1 & Closed Open Open Open 2 486DX4 Open Closed Open 1 & Closed Open Open Open (2X) 2 486DX4 Open Closed Open 1 & Closed Open Open Open (3X) 2 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (INTEL 486) Type JP11 JP12 JP13 JP23 JP24 JP41 JP42 486SX Open Open Open Closed Closed Open Open 486SL 1 & 2 Open Open Open Open Open Open 486DX/DX2 1 & 2 Open Open Closed Closed Open Open 486DX4 2 & 3 Open Open Open Open Open Open (2X) 486DX4 2 & 3 Open Open Open Open Open Open (3X) Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (INTEL OVERDRIVE) Type JP1 JP2 JP4 JP5 JP6 JP7 JP8 JP10 Overdrive Open Closed Open 1 & Open Open Open 1 & (2X-WT) 2 2 Overdrive Closed Closed Closed 1 & Open Open Open 1 & (2X-WB) 2 2 Overdrive Open Closed Open 1 & Open Open Open Open (3X-WT) 2 Overdrive Closed Closed Closed 1 & Open Open Open Open (3X-WB) 2 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (INTEL OVERDRIVE) Type JP11 JP12 JP13 JP23 JP24 JP41 JP42 Overdrive 2 & 3 Open Open Open Open Open Open (2X-WT) Overdrive 2 & 3 Open Open Open Open Open Open (2X-WB) Overdrive 2 & 3 Open Open Open Open Open Open (3X-WT) Overdrive 2 & 3 Open Open Open Open Open Open (3X-WB) Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type RN1 RN2 CX 486SX Not installed Not installed CX 487DX Installed Not installed AMD 486SX Not installed Installed AMD 486DX Installed Installed Intel 486SX Not installed Not installed Intel 486SL Installed Installed Intel 486DX/DX2 Installed Not installed Intel 486DX4 Installed Installed Overdrive Installed Installed CPU SPEED CONFIGURATION Speed JP20 JP21 JP25 JP26 JP27 25MHz 1 & 2 1 & 2 Closed Open Closed 33MHz 2 & 3 1 & 2 Open Open Closed 40MHz 2 & 3 2 & 3 Closed Closed Open 50iMHz 1 & 2 1 & 2 Closed Open Closed 50MHz 2 & 3 2 & 3 Open Closed Open 66iMHz 2 & 3 1 & 2 Open Open Closed 75iMHz 1 & 2 1 & 2 Closed Open Closed 100iMHz 2 & 3 2 & 3 Open Closed Open Note: Pins designated should be in the closed position.