MAGITRONICS A-BL2443G, A-BL2463, A-BL2483 Device Mainboard Type Processor CX486/80486SX/SL80486SX/CX486S/CX486DX/AM486DXL/ 80486DX/SL80486DX/CX486DX2/80486DX2/SL80486DX2/P24C/ P24T Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set ALI Video Chip None Set Maximum 64MB Onboard Memory Maximum None Video Memory Cache 64/128/256KB BIOS Unidentified 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 BATT Wake on modem JG7 connector Power LED & keylock CN1 Green PC connector JG8 Speaker CN2 Green PC connector JG9 Reset switch CN3 Green PC connector JG10 Turbo switch CN4 Green PC connector JG11 Turbo LED CN5 32-bit VESA local bus SL1 – SL3 slots Green PC connector JG6 USER CONFIGURABLE SETTINGS Function Label Position Battery type select internal BATT Pins 2 & 3 closed Battery type select external BATT Open CMOS memory clear BATT Pins 3 & 4 closed » Factory configured - do not JX1 Unidentified alter SIMM 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 3MB (1) 256K x (1) 256K x (1) 256K x None 36 36 36 4MB (1) 1M x 36 None None None 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) 256K x (1) 1M x 36 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 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 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 18MB (1) 4M x 36 (1) 256K x (1) 256K x None 36 36 SIMM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 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) 2M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 20MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 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) 2M x 36 (1) 2M x 36 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 28MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 32MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 None 32MB (1) 4M x 36 (1) 4M x 36 None None 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 None 40MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 None 52MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M 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 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) 32K x 8 CACHE JUMPER CONFIGURATION Size JS1 JS2 JS3 JS4 64KB Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 closed closed closed closed 128KB Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 closed closed closed closed 256KB Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 closed closed closed closed CPU SPEED SELECTION Speed JF1 JF2 JF3 JC10 JC11 JC13 25MHz 2 & 3 1 & 2 2 & 3 1 & 2 1 & 2 1 & 2 33MHz 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 1 & 2 40MHz 1 & 2 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 50iMHz 2 & 3 1 & 2 2 & 3 1 & 2 1 & 2 1 & 2 50MHz 2 & 3 1 & 2 2 & 3 2 & 3 2 & 3 2 & 3 66iMHz 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 1 & 2 75iMHz 2 & 3 1 & 2 2 & 3 1 & 2 1 & 2 1 & 2 100iMHz 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 1 & 2 Note: Pins designated should be in the closed position. CPU TYPE SELECTION Type JC1 JC2 JC3 JC4 JC5 JC6 CX486 Open 1 & 2 Open 2 & 3 2 & 3 2 & 3 80486SX Closed 1 & 2 Open 1 & 2 Open 2 & 3 SL80486SX Closed 1 & 2 Open 1 & 2 Open 2 & 3 CX486S Open 1 & 2 Open 2 & 3 2 & 3 2 & 3 CX486DX Open 1 & 2 2 & 3 2 & 3 2 & 3 1 & 2, 3 & 4 AM486DXL Closed 1 & 2 2 & 3 1 & 2 Open 1 & 2, 3 & 4 80486DX Closed 1 & 2 2 & 3 1 & 2 Open 1 & 2, 3 & 4 SL80486DX Closed 1 & 2 2 & 3 1 & 2 Open 1 & 2, 3 & 4 CX486DX2 Open 1 & 2 2 & 3 2 & 3 2 & 3 1 & 2, 3 & 4 80486DX2 Closed 1 & 2 2 & 3 1 & 2 Open 1 & 2, 3 & 4 SL80486DX2 Closed 1 & 2 2 & 3 1 & 2 Open 1 & 2, 3 & 4 P24C Closed 1 & 2 2 & 3 1 & 2 Open 1 & 2, 3 & 4 P24T Closed 2 & 3 1 & 2 1 & 2 1 & 2 1 & 2, 3 & 4 Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON’T) Type JC7 JC8 JC9 JC20 JX2 JX4 CX486 2 & 3 Open 2 & 3 Open Closed Closed 80486SX Open Open Open Open Closed Closed SL80486SX Open Open Open Closed Closed Closed CX486S 2 & 3 Open 2 & 3 Open Closed Closed CX486DX Open Open 2 & 3 Open Closed Closed AM486DXL Open Open Open Open Closed Closed 80486DX Open Open Open Open Closed Closed SL80486DX Open Open Open Closed Closed Closed CX486DX2 Open Open 2 & 3 Open Closed Closed 80486DX2 Open Open Open Open Closed Closed SL80486DX2 Open Open Open Closed Closed Closed P24C Open Open Open Open Open Open P24T Open 2 & 3 Open Open Closed Closed Note: Pins designated should be in the closed position. CPU MULTIPLIER SELECTION (P24C ONLY) Multiplier JX3 2x Pins 2 & 3 closed 3x Pins 1 & 2 closed CPU SELECTION Type JC12 JC21 JC22 JG2 JG3 AMD 1 & 2 Open Open 1 & 2 1 & 2 AM486DXL 2 & 3 Open Open 2 & 3 2 & 3 CX486DX2 1 & 2 Closed Closed 1 & 2 1 & 2 CX486S 1 & 2 Closed Closed 1 & 2 1 & 2 Cyrix 1 & 2 Open Closed 1 & 2 1 & 2 Intel 1 & 2 Open Open 2 & 3 2 & 3 Intel - S 1 & 2 Open Open 2 & 3 2 & 3 P24C 1 & 2 Open Open 1 & 2 1 & 2 P24T 1 & 2 Closed Open 2 & 3 2 & 3 Note: Pins designated should be in the closed position. CPU SELECTION (CON’T) Type JG4 JG5 JG16 JG19 JG20 AMD 1 & 2 1 & 2 Open Open Open AM486DXL 2 & 3 2 & 3 Open Open Open CX486DX2 1 & 2 1 & 2 Open Closed 1 & 2 CX486S 1 & 2 1 & 2 Open Closed 1 & 2 Cyrix 1 & 2 1 & 2 Open Closed 1 & 2 Intel 2 & 3 2 & 3 Open Open Open Intel - S 2 & 3 2 & 3 Open Open 2 & 3 P24C 1 & 2 Open Closed Open Open P24T 2 & 3 2 & 3 Open Open Open Note: Pins designated should be in the closed position. VL BUS WAIT STATE SELECTION Setting J2 0 Open 1 Closed VL BUS SPEED SELECTION Speed J1 <= 33MHz Open >33 MHz Closed