ELITEGROUP COMPUTER SYSTEMS, INC. UM4980 Processor CX486S/SL80486SX/80486SX/SL80486SX2/80486SX2/AM486DXL/AM486DX/CX486DX/UMCU5S/AM486DXL/SL80486DX/80486DX/AM486DX2/CX486DX2/ SL80486DX2/80486DX2/80486DX4 Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set UMC Max. 64MB Onboard DRAM Cache 128/256/512/1024KB BIOS Phoenix Dimensions 254mm x 218mm I/O 32-bit VESA local bus slots (3), green PC connector Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location External battery J2 Reset switch J30 Green PC connector J27 Turbo switch J31 Turbo LED J28 Power LED & keylock J32 Speaker J29 32-bit VESA local SL1 - SL3 bus slots USER CONFIGURABLE SETTINGS Function Jumper Position » BIOS type select EPROM JP1 Open BIOS type select 5v flash JP1 pins 1 & 2 closed BIOS type select 12v flash JP1 pins 2 & 3 closed » Keyboard type select external JP3 Open Keyboard type select internal JP3 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 NONE NONE NONE (1) 512K x 36 3MB (1) 256K x (1) 256K x (1) 256K x NONE 36 36 36 4MB (1) 256K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 4MB NONE NONE (1) 512K x (1) 512K x 36 36 4MB (1) 1M x 36 NONE NONE NONE 5MB (1) 1M x 36 (1) 256K x NONE NONE 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x NONE 36 36 7MB (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB NONE NONE NONE (1) 2M x 36 9MB (1) 1M x 36 (1) 1M x 36 (1) 256K x NONE 36 10MB (1) 1M x 36 (1) 1M x 36 (1) 256K x (1) 256K x 36 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 13MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 256K x 36 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB NONE NONE (1) 2M x 36 (1) 2M x 36 16MB (1) 4M x 36 NONE NONE NONE 17MB (1) 4M x 36 (1) 256K x NONE NONE 36 18MB (1) 4M x 36 (1) 256K x (1) 256K x NONE 36 36 19MB (1) 4M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 20MB (1) 4M x 36 (1) 1M x 36 NONE NONE 21MB (1) 4M x 36 (1) 1M x 36 (1) 256K x NONE 36 22MB (1) 4M x 36 (1) 1M x 36 (1) 256K x (1) 256K x 36 36 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 NONE 25MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 256K x 36 28MB (1) 4M 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 33MB (1) 4M x 36 (1) 4M x 36 (1) 256K x NONE 36 34MB (1) 4M x 36 (1) 4M x 36 (1) 256K x (1) 256K x 36 36 36MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 NONE 37MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 256K x 36 40MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 49MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 256K x 36 52MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 64K x 8 NONE (1) 32K x 8 256KB (4) 32K x 8 (4) 32K x 8 (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 1MB (4) 128K x 8 (4) 128K x 8 (1) 64K x 8 CACHE JUMPER CONFIGURATION Size JP4 JP5 JP6 JP10 JP11 JP12 JP13 128KB 1 & 2 1 & 2 Open Open Open Open Open 256KB 1 & 2 1 & 2 1 & 2 Open Open Open Closed 256KB 2 & 3 2 & 3 Open Open Open Open Closed 512KB 2 & 3 2 & 3 2 & 3 Open Closed Open Closed 512KB 1 & 2 2 & 3 2 & 3 1 & 2 Closed Open Closed 1MB 2 & 3 2 & 3 2 & 3 2 & 3 Closed Closed Closed Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP14 JP15 JP16 CX486S pins 2 & 3, 4 & 2 & 3 Open 5 closed SL80486SX pins 1 & 2, 3 & 2 & 3 Open 4 closed 80486SX Open pins 2 & 3 Open closed SL80486SX2 pins 1 & 2, 3 & 2 & 3 Open 4 closed 80486SX2 Open pins 2 & 3 Open closed AM486DXL Open pins 1 & 2, 3 & pins 1 & 2, 3 & 4 closed 4 closed AM486DX Open pins 1 & 2, 3 & pins 1 & 2 4 closed closed CX486DX pins 2 & 3 pins 1 & 2, 3 & pins 1 & 2 closed 4 closed closed UMC U5S Open pins 2 & 3 pins 3 & 4 closed closed AM486DXL2 Open pins 1 & 2, 3 & pins 1 & 2, 3 & 4 closed 4 closed SL80486DX pins 1 & 2, 3 & pins 1 & 2, 3 & pins 1 & 2 4 closed 4 closed closed 80486DX Open pins 1 & 2, 3 & pins 1 & 2 4 closed closed AM486DX2 Open pins 1 & 2, 3 & pins 1 & 2 4 closed closed CX486DX2 pins 2 & 3 pins 1 & 2, 3 & pins 1 & 2 closed 4 closed closed SL80486DX2 pins 1 & 2, 3 & pins 1 & 2, 3 & pins 1 & 2 4 closed 4 closed closed 80486DX2 Open pins 1 & 2, 3 & pins 1 & 2 4 closed closed 80486DX2 (WB) pins 1 & 2, 3 & pins 1 & 2, 3 & pins 1 & 2 4 closed 4 closed closed 80486DX4 pins 1 & 2, 3 & pins 1 & 2, 3 & pins 1 & 2 4 closed 4 closed closed CPU TYPE CONFIGURATION (CON’T) Type JP17 JP18 JP19 CX486S 2 & 3, 4 & 5 1 & 2, 3 & 4, 1 & 2, 3 & 4, 5 & 6 5 & 6 SL80486SX 5 & 6 1 & 2 1 & 2 80486SX Open 2 & 3 Open SL80486SX2 5 & 6 1 & 2 1 & 2 80486SX2 Open 2 & 3 Open AM486DXL 1 & 2 2 & 3 2 & 3 AM486DX Open 2 & 3 Open CX486DX 2 & 3, 4 & 5 1 & 2, 3 & 4, 1 & 2, 3 & 4 5 & 6 UMC U5S 1 & 2 2 & 3 2 & 3 AM486DXL2 1 & 2 2 & 3 2 & 3 SL80486DX 5 & 6 1 & 2 1 & 2 80486DX Open 2 & 3 Open AM486DX2 Open 2 & 3 Open CX486DX2 2 & 3, 4 & 5 1 & 2, 3 & 4, 1 & 2, 3 & 4 5 & 6 SL80486DX2 5 & 6 1 & 2 1 & 2 80486DX2 Open 2 & 3 Open 80486DX2 (WB) 3 & 4, 5 & 6 1 & 2, 4 & 5 1 & 2, 4 & 5 80486DX4 5 & 6 1 & 2 1 & 2 Note: Pins designated should be in the closed position. CPU SPEED CONFIGURATION Speed JP7 JP8 JP9 25MHz Closed Open Open 33MHz Closed Closed Closed 40MHz Closed Closed Open 50iMHz Closed Open Open 50MHz Open Open Closed 66iMHz Closed Closed Closed 75iMHz Closed Open Open 100iMHz Closed Closed Closed CPU SPEED CONFIGURATION (80486DX4 ONLY) Speed JP24 2x pins 2 & 3 closed 3x Open CPU VOLTAGE CONFIGURATION Voltage JP20 JP21 JP22 3.3v pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed 3.45v pins 2 & 3 pins 2 & 3 pins 1 & 2 closed closed closed 5v pins 1 & 2 pins 1 & 2 Open closed closed VESA WAIT STATE CONFIGURATION Wait states JP26 0 wait states Open 1 wait state Closed BUS SPEED CONFIGURATION CPU speed JP25 <= 33MHz Open > 33MHz Closed