FORTRESS SYSTEMS INTERNATIONAL GENESIS II 486 VESA/ISA Processor CX486SX/AM486SX/80486SX/CX486DX/AM486DX/80486DX/ CX486DX2/AM486DX2/80486DX2/CX486DX4/AM486DX4/80486DX4 Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ Speed 100(internal)/120(internal)MHz Chip Set Unidentified Video Chip None Set Maximum 64MB Onboard Memory Maximum None Video Memory Cache 128/256/512/1024KB BIOS AMI/Award/MR BIOS 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 Power LED & keylock JP16 Green PC connector JP20 Speaker JP17 Turbo LED JP21 Green PC LED JP18 Reset switch JP26 Turbo switch JP19 32-bit VESA local bus SL1 – SL3 slots USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JP1 Pins 1 & 2 closed CMOS memory clear JP1 Pins 2 & 3 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 3MB (1) 256K x (1) 512K x None None 36 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 (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 5MB (1) 256K x (1) 256K x (1) 256K x (1) 512K x 36 36 36 36 6MB (1) 512K x (1) 1M x 36 None None 36 8MB (1) 1M x 36 (1) 1M x 36 None None 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 32MB (1) 4M x 36 (1) 4M x 36 None None 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 Note: Board accepts x 32 SIMMs. DRAM JUMPER CONFIGURATION Setting JP70 1 BK installed Pins 1 & 2 closed 2 BK installed Pins 2 & 3 closed CACHE CONFIGURATION Size Bank 0 Bank 1 128KB (4) 32K x 8 None 256KB (A) (4) 32K x 8 (4) 32K x 8 256KB (B) (4) 64K x 8 None 512KB (A) (4) 128K x 8 None 512KB (B) (4) 64K x 8 (4) 64K x 8 1MB (4) 128K x 8 (4) 128K x 8 CACHE JUMPER CONFIGURATION Size JP6 JP11 JP12 128KB Open Pins 2 & 3 Pins 1 & 2 closed closed 256KB (A) Open Pins 1 & 2 Pins 1 & 2 closed closed 256KB (B) Open Pins 2 & 3 Pins 1 & 2 closed closed 512KB (A) Open Pins 2 & 3 Pins 2 & 3 closed closed 512KB (B) Pins 1 & 2 Open Pins 2 & 3 closed closed 1MB Pins 2 & 3 Open Pins 2 & 3 closed closed CPU SPEED SELECTION Speed JP2A JP2B JP2C JP22 25MHz Closed Pins 1 & 2 Pins 2 & 3 Open closed closed 33MHz Closed Pins 2 & 3 Pins 1 & 2 Open closed closed 40MHz Open Pins 1 & 2 Pins 2 & 3 Closed closed closed 50iMHz Closed Pins 1 & 2 Pins 2 & 3 Open closed closed 50MHz Open Pins 2 & 3 Pins 1 & 2 Closed closed closed 66iMHz Closed Pins 2 & 3 Pins 1 & 2 Open closed closed 75iMHz Closed Pins 1 & 2 Pins 2 & 3 Open closed closed 80iMHz Open Pins 1 & 2 Pins 2 & 3 Closed closed closed 100iMHz Closed Pins 2 & 3 Pins 1 & 2 Open closed closed 120iMHz Open Pins 1 & 2 Pins 2 & 3 Closed closed closed CPU TYPE SELECTION Type JP15 Cyrix Pins 2 & 3 closed AMD Pins 1 & 2 closed Intel Pins 1 & 2 closed VL BUS SPEED SELECTION Speed JP13 <= 33MHz Closed >33 MHz Open FLASH BIOS VOLTAGE SELECTION Voltage JP5 JP80 5v Pins 1 & 2 closed Pins 1 & 3, 2 & 4 closed 12v Pins 2 & 3 closed Pins 3 & 5, 4 & 6 closed