GIGA-BYTE TECHNOLOGY CO., LTD. GA-486VS Processor 80486SX/80487SX/CX486S/CX486S2/80486DX/80486DX4/ODP486SX/ 80486DX2/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set SIS Max. 128MB Onboard DRAM Cache 64/128/256/512KB BIOS Award Dimensions 230mm x 218mm I/O 32-bit VESA local bus slots (3) Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location External battery J1 External power control JP33 port Turbo switch J3 Green LED connector JP34 Turbo LED J4 32-bit VESA Local bus S1 slot Speaker J5 32-bit VESA Local bus S2 slot Reset switch J6 32-bit VESA Local bus S3 slot Power LED & keylock J7 USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not JP2 N/A alter » Factory configured - do not JP8 N/A alter » Factory configured - do not JP9 N/A alter » Non AMD CPU selection JP11 Closed AMD CPU selection JP11 Open » CMOS memory normal operation JP16 pins 1 & 2 closed CMOS memory clear JP16 pins 2 & 3 closed » Monitor type select CGA JP17 Open Monitor type select all others JP17 Closed » Factory configured - do not JP20 pins 2 & 3 alter closed » DX4 CPU x 3 installed JP24 Open DX4 CPU x 2 installed JP24 Closed » Green PC normal operation JP26 Open Green PC Green mode JP26 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x NONE NONE NONE 36 2MB (1) 256K x (1) 256K x NONE NONE 36 36 2MB (1) 512K x NONE NONE NONE 36 4MB (1) 256K x (1) 256K x (1) 512K x NONE 36 36 36 4MB (1) 512K x (1) 512K x NONE NONE 36 36 4MB (1) 1M x 36 NONE NONE NONE 5MB (1) 256K x (1) 1M x 36 NONE NONE 36 6MB (1) 256K x (1) 256K x (1) 1M x 36 NONE 36 36 6MB (1) 512K x (1) 1M x 36 NONE NONE 36 8MB (1) 256K x (1) 256K x (1) 512K x (1) 1M x 36 36 36 36 8MB (1) 512K x (1) 512K x (1) 1M x 36 NONE 36 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (1) 2M x 36 NONE NONE NONE 10MB (1) 256K x (1) 256K x (1) 1M x 36 (1) 1M x 36 36 36 12MB (1) 512K x (1) 512K x (1) 1M x 36 (1) 1M x 36 36 36 12MB (1) 1M x 36 (1) 1M 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) 2M x 36 (1) 2M x 36 NONE NONE 16MB (1) 4M x 36 NONE NONE NONE 17MB (1) 256K x (1) 4M x 36 NONE NONE 36 18MB (1) 256K x (1) 256K x (1) 4M x 36 NONE 36 36 18MB (1) 512K x (1) 4M x 36 NONE NONE 36 20MB (1) 512K x (1) 512K x (1) 4M x 36 NONE 36 36 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 24MB (1) 512K x (1) 512K x (1) 1M x 36 (1) 4M x 36 36 36 24MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 NONE 24MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 NONE DRAM CONFIGURATION (CONT.) Size Bank 0 Bank 1 Bank 2 Bank 3 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 8M x 36 NONE NONE NONE 36MB (1) 512K x (1) 512K x (1) 4M x 36 (1) 4M x 36 36 36 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) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 40MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 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 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 64MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 NONE 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 65MB (1) 256K x (1) 16M x 36 NONE NONE 36 68MB (1) 1M x 36 (1) 16M x 36 NONE NONE 68MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 NONE 72MB (1) 1M x 36 (1) 1M x 36 (1) 16M x NONE 36 72MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 80MB (1) 4M x 36 (1) 16M x 36 NONE NONE 80MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 NONE 96MB (1) 4M x 36 (1) 4M x 36 (1) 16M x NONE 36 96MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 NONE 128MB (1) 16M x 36 (1) 16M x 36 NONE NONE 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 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 16K x 8/(1) 32K x 8 256KB (4) 64K x 8 NONE (1) 16K x 8/(1) 32K x 8 512KB (4) 128K x 8 NONE (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP1 JP2 JP3 JP4 64KB Open Open Open N/A 128KB Closed Open Open pins 1 & 2 closed 256KB Closed Closed Open pins 2 & 3 closed 256KB Closed Closed Open pins 1 & 2 closed 512KB Closed Closed Closed pins 1 & 2 closed CPU TYPE CONFIGURATION Type JP8 JP18 80486SX pins 2 & 3 closed Closed 80487SX N/A Closed CX486S N/A Open CX486S2 N/A Open 80486DX pins 1 & 2 closed Closed ODP486SX pins 1 & 2 closed Closed 80486DX2 pins 1 & 2 closed Closed 80486DX4 N/A Closed Pentium Overdrive N/A Closed CPU SPEED CONFIGURATION Speed JP5 JP6 JP7 JP29 25MHz Open Open Closed Open 33MHz Closed Closed Closed Open 40MHz Open Closed Closed Closed 50iMHz Open Open Closed Open 50MHz Closed Open Open Closed 66iMHz Closed Closed Closed Open 75i (40 x 2) Open Closed Closed Closed MHz 75i (25 x 3) Open Open Closed Open MHz 100i (50 x Closed Open Open Closed 2) MHz 100i (33 x Closed Closed Closed Open 3) MHz CPU VOLTAGE SELECTION Function JP36 JP37 5 Voltage Closed Closed 3.3 Voltage (DX4) Open Open