COMPUTREND SYSTEMS, INC. VLB486 AL5 (ALI-486G) Processor 80486SX/SL80486SX/80486DX/SL80486DX/CXM7/AM486DX2/80486DX2/ SL80486DX2/AM486DX4/80486DX4/P24D/P24T Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ Speed 100(internal)MHz Chip Set ALI Max. 64MB Onboard DRAM Cache 128/256KB BIOS AMI Dimensions 250mm x 220mm I/O 32-bit VESA local bus slots (3), green PC connector Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location External battery JB Reset switch JFP pins 19 & 20 Power LED & JFP pins 1 - Green PC connector JG1 keylock 5 (monitor) Speaker JFP pins 7 - Green PC LED JG2 10 Turbo LED JFP pins 12 & Green PC connector JG3 13 Turbo switch JFP pins 15 - 32-bit VESA local SL1 - SL3 17 bus slots USER CONFIGURABLE SETTINGS Function Jumper Position » Battery type select internal JB Pins 2 & 3 closed Battery type select external JB Closed » Factory configured - do not JC2 N/A alter » Factory configured - do not JC3 N/A alter » Monitor type select monochrome JP1 Pins 2 & 3 closed Monitor type select color JP1 Pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x None None None 36 2MB (1) 512K x None None None 36 2MB (1) 256K x (1) 256K x None None 36 36 3MB (1) 512K x (1) 256K x None None 36 36 3MB (1) 256K x (1) 256K x (1) 256K x None 36 36 36 3MB (1) 256K x (1) 512K x None None 36 36 4MB (1) 1M x 36 None None None 4MB (1) 512K x (1) 256K x (1) 256K x None 36 36 36 4MB (1) 512K x (1) 512K x None None 36 36 4MB (1) 256K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 5MB (1) 1M x 36 (1) 256K x None None 36 5MB (1) 512K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 5MB (1) 256K x (1) 1M x 36 None None 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x None 36 36 6MB (1) 1M x 36 (1) 512K x None None 36 6MB (1) 512K x (1) 1M x 36 None None 36 7MB (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 8MB (1) 2M x 36 None None None 8MB (1) 1M x 36 (1) 1M x 36 None None 9MB (1) 2M x 36 (1) 256K x None None 36 9MB (1) 256K x (1) 1M x 36 (1) 1M x 36 None 36 9MB (1) 256K x (1) 2M x 36 None None 36 10MB (1) 2M x 36 (1) 256K x (1) 256K x None 36 36 10MB (1) 2M x 36 (1) 512K x None None 36 10MB (1) 512K x (1) 1M x 36 (1) 1M x 36 None 36 10MB (1) 512K x (1) 2M x 36 None None 36 12MB (1) 2M x 36 (1) 1M x 36 None None 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 None 12MB (1) 1M x 36 (1) 2M x 36 None None 13MB (1) 256K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 16MB (1) 4M x 36 None None None 16MB (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 None 16MB (1) 2M x 36 (1) 2M x 36 None None 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 17MB (1) 4M x 36 (1) 256K x None None 36 17MB (1) 256K x (1) 4M x 36 None None 36 18MB (1) 4M x 36 (1) 256K x (1) 256K x None 36 36 18MB (1) 4M x 36 (1) 512K x None None 36 18MB (1) 512K x (1) 4M x 36 None None 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 20MB (1) 1M x 36 (1) 4M x 36 None None 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 None 24MB (1) 4M x 36 (1) 2M x 36 None None 24MB (1) 2M x 36 (1) 4M x 36 None None 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 8M x 36 None None None 32MB (1) 4M x 36 (1) 4M x 36 None None 33MB (1) 8M x 36 (1) 256K x None None 36 33MB (1) 256K x (1) 4M x 36 (1) 4M x 36 None 36 33MB (1) 256K x (1) 8M x 36 None None 36 34MB (1) 8M x 36 (1) 256K x (1) 256K x None 36 36 34MB (1) 8M x 36 (1) 512K x None None 36 34MB (1) 512K x (1) 4M x 36 (1) 4M x 36 None 36 34MB (1) 512K x (1) 8M x 36 None None 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) 8M x 36 (1) 1M x 36 (1) 1M x 36 None 40MB (1) 8M x 36 (1) 2M x 36 None None 40MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 None 40MB (1) 2M x 36 (1) 8M x 36 None None 48MB (1) 8M x 36 (1) 4M x 36 None 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 49MB (1) 256K x (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 36 52MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M 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 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 None (1) 8K/16K/32K x 8 256KB (A) (4) 32K x 8 (4) 32K x 8 (1) 16K/32K x 8 256KB (B) (4) 64K x 8 None (1) 16K/32K x 8 CACHE JUMPER CONFIGURATION Size JS1 JS2 JS3 128KB Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed 256KB (A) Pins 1 & 2 Pins 1 & 2 Pins 2 & 3 closed closed closed 256KB (B) Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 closed closed closed CPU TYPE CONFIGURATION Type JC4 JC5 JC6 80486SX Pins 2 & 3 Pins 4 & 5 Open closed closed SL80486SX Pins 2 & 3 Pins 5 & 6 Open closed closed 80486DX Pins 1 & 2, 3 Pins 4 & 5 Pins 3 & 4 & 4 closed closed closed SL80486DX Pins 1 & 2, 3 Pins 5 & 6 Pins 3 & 4 & 4 closed closed closed CXM7 Pins 1 & 2, 3 Pins 1 & 2, 4 Pins 3 & 4 & 4 closed & 5 closed closed AM486DX2-80 (3.3v) Pins 1 & 2, 3 Pins 2 & 3, 4 Pins 3 & 4 & 4 closed & 5 closed closed AM486DX2-80 (5v) Pins 1 & 2, 3 Pins 4 & 5 Pins 3 & 4 & 4 closed closed closed 80486DX2 Pins 1 & 2, 3 Pins 4 & 5 Pins 3 & 4 & 4 closed closed closed SL80486DX2 Pins 1 & 2, 3 Pins 5 & 6 Pins 3 & 4 & 4 closed closed closed AM486DX4 Pins 1 & 2, 3 Pins 4 & 5 Pins 3 & 4 & 4 closed closed closed 80486DX4 Pins 1 & 2, 3 Pins 5 & 6 Pins 3 & 4 & 4 closed closed closed P24D Pins 1 & 2, 3 Pins 5 & 6 Pins 2 & 3 & 4 closed closed closed P24T Pins 1 & 2, 3 Pins 5 & 6 Pins 2 & 3 & 4 closed closed closed CPU TYPE CONFIGURATION (CON'T) Type JC7 JC8 JC10 80486SX Open Pins 4 & 5 Open closed SL80486SX Pins 5 & 6 Pins 4 & 5 Open closed closed 80486DX Open Pins 4 & 5 Open closed SL80486DX Pins 5 & 6 Pins 4 & 5 Open closed closed CXM7 Pins 2 & 3, 4 & Pins 4 & 5 Open 5 closed closed AM486DX2-80 (3.3v) Open Pins 4 & 5 Open closed AM486DX2-80 (5v) Open Pins 4 & 5 Open closed 80486DX2 Open Pins 4 & 5 Open closed SL80486DX2 Pins 5 & 6 Pins 4 & 5 Open closed closed AM486DX4 Open Pins 4 & 5 Open closed 80486DX4 Pins 5 & 6 Pins 4 & 5 Open closed closed P24D Pins 5 & 6 Pins 5 & 6 Pins 1 & 2, 3 & closed closed 4 closed P24T Pins 5 & 6 Pins 4 & 5 Open closed closed [Image] CPU TYPE CONFIGURATION (CON'T) Type JC5/6/7/8 SL80486SX JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1 SL80486DX JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1 SL80486DX2 JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1 80486DX4 JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1 P24D JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1 P24T JC5 pin 1/JC6 pin 1 & JC7 pin 1/JC8 pin 1 Note: See above figure for jumper placement. CPU TYPE CONFIGURATION Type JK5 All CPU types Closed P24C only Open CPU TYPE CONFIGURATION Type JC1 All CPU types Pins 1 & 2 closed CX M7 only Pins 2 & 3 closed CPU SPEED CONFIGURATION Speed JK1 JK2 JK3 JK4 25MHz 1 & 2 2 & 3 2 & 3 1 & 6, 4 & 9, 5 & 10 33MHz 1 & 2 2 & 3 2 & 3 1 & 6, 2 & 7, 3 & 8, 4 & 9, 5 & 10 40MHz 2 & 3 4 & 5 2 & 3 2 & 7, 4 & 9 50iMHz 1 & 2 2 & 3 2 & 3 1 & 6, 4 & 9, 5 & 10 50iMHz (CX 2 & 3 4 & 5 2 & 3 4 & 9, 5 & 10 only) 50MHz 2 & 3 1 & 2 1 & 2 1 & 6, 4 & 9 66iMHz 1 & 2 2 & 3 2 & 3 1 & 6, 2 & 7, 3 & 8, 4 & 9, 5 & 10 75iMHz 1 & 2 2 & 3 2 & 3 1 & 6, 4 & 9, 5 & 10 80iMHz 2 & 3 4 & 5 2 & 3 2 & 7, 4 & 9 100iMHz 1 & 2 2 & 3 2 & 3 1 & 6, 2 & 7, 3 & 8, 4 & 9, 5 & 10 Note: Pins designated should be in the closed position. CPU VOLTAGE CONFIGURATION Voltage J50 With auto detect Pins 1 & 7, 2 & 8, 3 & 9 closed 3.3v Pins 1 & 7, 2 & 8, 3 & 9 closed 5v Pins 4 & 10, 5 & 11, 6 & 12 closed