ASUS COMPUTER INTERNATIONAL VL/I-486SV2G (REV. 1.0) VL/I-486SV2GX4 (REV. 1.0) Processor CX486S/80486SX/SL80486SX/486 Overdrive/SL486 Overdrive/ 80487SX/CX486DX/80486DX/SL80486DX/80486DX2/SL80486DX2/CX486DX2/80486DX4/P24T Processor 20/25/33/40/50(internal)/50/66(internal)/75(internal)/ Speed 100(internal)MHz Chip Set SIS Video Chip None Set Maximum 64MB Onboard Memory Maximum None Video Memory Cache 128/256/512/1024KB BIOS Award Dimensions 254mm x 218mm I/O 32-bit VESA local bus slots (2), green PC connector Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock J1 Green PC connector JP2 Speaker J2 Green PC connector JP3 Reset switch J3 Green PC connector JP4 Turbo LED J4 Green PC connector JP28 Turbo switch J5 32-bit VESA local bus SL1 & SL2 slots External battery J6 USER CONFIGURABLE SETTINGS Function Label Position Battery type select internal JP1 Pins 1 & 2 closed Battery type select external JP1 Pins 2 & 3 closed » IRQ12 enabled JP7 Pins 1 & 2 closed IRQ12 disabled JP7 Pins 2 & 3 closed » Factory configured - do not JP8 Unidentified alter Monitor type select JP9 Pins 1 & 2 closed monochrome/VGA Monitor type select CGA JP9 Pins 2 & 3 closed Green PC enabled (JP28) JP10 Pins 2 & 3 closed Green PC disabled (RC control) JP10 Pins 1 & 2 closed » VESA clock delay enabled JP24 Pins 1 & 2 closed VESA clock delay disabled JP24 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 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 None (1) 1M x 36 None 36 8MB (1) 1M x 36 (1) 1M x 36 None None 10MB (1) 256K x (1) 256K x (1) 1M x 36 (1) 1M x 36 36 36 10MB (1) 256K x (1) 256K x (1) 2M x 36 None 36 36 10MB (1) 512K x None (1) 1M x 36 (1) 1M x 36 36 10MB (1) 512K x None (1) 2M x 36 None 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 None 12MB (1) 2M x 36 None (1) 1M x 36 None 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 1M x 36 (1) 1M x 36 (1) 2M x 36 None 16MB (1) 2M x 36 None (1) 2M x 36 None DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 16MB (1) 2M x 36 None (1) 1M x 36 (1) 1M x 36 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 None (1) 4M x 36 None 36 20MB (1) 1M x 36 (1) 4M x 36 None None 24MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 None 24MB (1) 2M x 36 None (1) 4M x 36 None 32MB (1) 4M x 36 (1) 4M x 36 None None 32MB (1) 8M x 36 None None None 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 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 40MB (1) 2M x 36 None (1) 4M x 36 (1) 4M x 36 40MB (1) 2M x 36 None (1) 8M x 36 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 64MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 None 64MB (1) 8M x 36 None (1) 8M x 36 None Note: The location of banks 0, 1, 2, & 3 are unidentified. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 None (1) 8K x 8 256KB (A) (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 256KB (B) (4) 64K x 8 None (1) 32K x 8 512KB (A) (4) 64K x 8 (4) 64K x 8 (1) 32K x 8 512KB (B) (4) 128K x 8 None (1) 32K x 8 1MB (4) 128K x 8 (4) 128K x 8 (1) 128K x 8 CACHE JUMPER CONFIGURATION Size JP13 JP14 JP25 128KB Open Pins 2 & 3 Pins 1 & 2 closed closed 256KB (A) Open Pins 1 & 2 Pins 1 & 2 closed closed 256KB (B) Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 closed closed closed 512KB (A) Pins 4 & 5 Pins 1 & 2 Pins 2 & 3 closed closed closed 512KB (B) Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 closed closed closed 1MB Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 closed closed closed CPU SPEED SELECTION Speed JP21 JP22 JP23 20MHz Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 closed closed closed 25MHz Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed 33MHz Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed 40MHz Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 closed closed closed 50iMHz Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed 50MHz Pins 1 & 2 Pins 1 & 2 Pins 2 & 3 closed closed closed 66iMHz Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed 75iMHz Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed 100iMHz Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed CPU TYPE SELECTION Type JP16 JP17 JP18 JP19 JP20 CX468S 2 & 3, 4 1 & 2 1 & 2, 3 2 & 3 2 & 3 & 5 & 4 80486SX Open Open Open 2 & 3 2 & 3 SL80486SX 3 & 4, 5 Open 4 & 5 2 & 3 2 & 3 & 6 486 Overdrive Open Open Open 1 & 2 2 & 3 SL486 Overdrive 5 & 6 Open 4 & 5 1 & 2 2 & 3 80487SX Open Open Open 1 & 2 2 & 3 CX486DX 2 & 3, 4 1 & 2 1 & 2, 3 1 & 2 2 & 3 & 5 & 4 80486DX Open Open Open 1 & 2 2 & 3 SL80486DX 3 & 4, 5 Open 4 & 5 1 & 2 2 & 3 & 6 80486DX2 Open Open Open 1 & 2 2 & 3 SL80486DX2 3 & 4, 5 Open 4 & 5 1 & 2 2 & 3 & 6 CX486DX2 2 & 3, 4 1 & 2 1 & 2, 3 1 & 2, 4 2 & 3 & 5 & 4 & 5 80486DX4 (2x) 3 & 4, 5 5 & 6 4 & 5 1 & 2 2 & 3 & 6 80486DX4 (2.5x) 3 & 4, 5 4 & 5 4 & 5 1 & 2 2 & 3 & 6 80486DX4 (3x) 3 & 4, 5 Open 4 & 5 1 & 2 2 & 3 & 6 P24T 5 & 6 Open 4 & 5 1 & 2 1 & 2 Note: Pins designated should be in the closed position. CPU TYPE SELECTION Type JP11 Cyrix Pins 1 & 2 closed Intel Pins 2 & 3 closed CPU HARDWARE TRAP SELECTION Type JP5 JP6 CX468S Pins 2 & 3 closed Pins 1 & 2 closed 80486SX Pins 1 & 2 closed Pins 2 & 3 closed SL80486SX Pins 1 & 2 closed Pins 2 & 3 closed CX486DX Pins 2 & 3 closed Pins 1 & 2 closed 80486DX Pins 1 & 2 closed Pins 2 & 3 closed SL80486DX Pins 1 & 2 closed Pins 2 & 3 closed 80486DX2 Pins 1 & 2 closed Pins 2 & 3 closed SL80486DX2 Pins 1 & 2 closed Pins 2 & 3 closed CX486DX2 Pins 2 & 3 closed Pins 1 & 2 closed 80486DX4 Pins 1 & 2 closed Pins 2 & 3 closed P24T Pins 1 & 2 closed Pins 1 & 2 closed CPU VOLTAGE SELECTION Voltage JP12 JP15 3v Pins 2 & 3 closed Pins 2 & 3 closed 5v Pins 1 & 2 closed Pins 1 & 2 closed VL BUS WAIT STATE SELECTION Setting JP26 0 Pins 1 & 2 closed 1 Pins 2 & 3 closed VL BUS SPEED SELECTION Speed JP27 <= 33MHz Pins 1 & 2 closed >33 MHz Pins 2 & 3 closed