QDI COMPUTER, INC. VL/ISA-PB486P3 Processor 80486SX/CX486DX/80486DX/SL80486DX/80486DX2/(SL)80486DX2/ AM486/80486DX4 Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ Speed 100(internal)MHz Chip Set OPTI Video Chip None Set Maximum 64MB Onboard Memory Maximum None Video Memory Cache 128/256/512KB BIOS AMI 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 J2 Reset switch S1 Speaker JP18 32-bit VESA local SL1 - SL3 bus slots Green PC connector JP21 Turbo LED TBLED Green PC connector JP32 Turbo switch TBSW USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not alter JP12 Open » Factory configured - do not alter JP14 Pins 1 & 2 closed » Factory configured - do not alter JP23 Open » CMOS memory normal operation JP26 Pins 2 & 3 closed CMOS memory clear JP26 Pins 1 & 2 closed » Monitor type select color JP30 Closed Monitor type select monochrome JP30 Open » Factory configured - do not alter JP37 Pins 1 & 2 closed » Factory configured - do not alter JP44 Pins 2 & 3 closed » Factory configured - do not alter JP45 Pins 2 & 3 closed » Factory configured - do not alter JP46 Pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 1MB (4) 256K x 9 None None 2MB None (1) 512K x 36 None 4MB (A) (4) 1M x 9 None None 4MB (B) None (1) 1M x 36 None 4MB (C) None (1) 512K x 36 (1) 512K x 36 6MB None (1) 512K x 36 (1) 1M x 36 8MB (A) (4) 1M x 9 None (1) 1M x 36 8MB (B) None (1) 2M x 36 None 8MB (C) None (1) 1M x 36 (1) 1M x 36 10MB None (1) 512K x 36 (1) 2M x 36 12MB (A) (4) 1M x 9 None (1) 2M x 36 12MB (B) None (1) 1M x 36 (1) 2M x 36 16MB (A) (4) 4M x 9 None None 16MB (B) None (1) 4M x 36 None 16MB (C) None (1) 2M x 36 (1) 2M x 36 16MB (D) (4) 4M x 9 (1) 2M x 36 (1) 1M x 36 20MB (A) (4) 1M x 9 None (1) 4M x 36 20MB (A) None (1) 1M x 36 (1) 4M x 36 32MB (A) (4) 4M x 9 None (1) 4M x 36 32MB (B) None (1) 4M x 36 (1) 4M x 36 32MB (C) None (1) 8M x 36 None 64MB (A) None (1) 8M x 36 (1) 8M x 36 64MB (B) (4) 4M x 9 (1) 8M x 36 (1) 4M x 36 Note: The location of banks 1 & 2 are unidentified. DRAM JUMPER CONFIGURATION Size JP42 1MB Pins 1 & 2 closed 2MB Pins 1 & 2 closed 4MB (A) Pins 1 & 2 closed 4MB (B) Pins 1 & 2 closed 4MB (C) Pins 1 & 2 closed 6MB Pins 1 & 2 closed 8MB (A) Pins 1 & 2 closed 8MB (B) Pins 1 & 2 closed 8MB (C) Pins 1 & 2 closed 10MB Pins 1 & 2 closed 12MB (A) Pins 1 & 2 closed 12MB (B) Pins 1 & 2 closed 16MB (A) Pins 1 & 2 closed 16MB (B) Pins 1 & 2 closed 16MB (C) Pins 1 & 2 closed 16MB (D) Pins 2 & 3 closed 20MB (A) Pins 1 & 2 closed 20MB (A) Pins 1 & 2 closed 32MB (A) Pins 1 & 2 closed 32MB (B) Pins 1 & 2 closed 32MB (C) Pins 1 & 2 closed 64MB (A) Pins 1 & 2 closed 64MB (B) Pins 2 & 3 closed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 None (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 512KB (4) 128K x 8 None (1) 32K x 8 Note: The location of banks 0 & 1 and the TAG are unidentified. CACHE JUMPER CONFIGURATION Size JP10 JP11 JP13 JP35 128KB Open Closed Pins 1 & 2 Pins 1 & 2 closed closed 256KB Closed Closed Pins 2 & 3 Pins 1 & 2 closed closed 512KB Closed Closed Pins 1 & 2 Pins 2 & 3 closed closed CPU SPEED SELECTION Speed JP38 JP39 25MHz Open Closed 33MHz Closed Open 40MHz Open Open 50iMHz Open Closed 50MHz Closed Closed 66iMHz Closed Open 75iMHz Open Closed 80iMHz Open Open 100iMHz Closed Open CPU TYPE SELECTION Type JP3 JP4 JP5 JP6 JP7 80486SX Open Open Open 1 & 2 Open SL80486SX Open Open Open 1 & 2 Open CX486DX (1x) 1 & 2 Open 2 & 3 2 & 3 Open CX486DX (2x) 1 & 2 Open 2 & 3 2 & 3 Open 80486DX 1 & 2 Open 2 & 3 1 & 2 Open SL80486DX 1 & 2 Open 2 & 3 1 & 2 Open 80486DX2 1 & 2 Open 2 & 3 1 & 2 Open AM486 3.3v 1 & 2 Open 2 & 3 1 & 2 2 & 3 (2x) AM486 3.3v 1 & 2 Open 2 & 3 1 & 2 1 & 2 (3x) 80486DX4 1 & 2 Open 2 & 3 1 & 2 Open Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON’T) Type JP8 JP9 JP22 JP24 JP25 80486SX 2 & 3 Open 1 & 2 Open Open SL80486SX 2 & 3 Open 1 & 2 Closed Closed CX486DX (1x) 1 & 2 1 & 2 1 & 2 Open Open CX486DX (2x) 1 & 2 1 & 2 1 & 2 Open Open 80486DX 1 & 2 Open 1 & 2 Open Open SL80486DX 1 & 2 Open 1 & 2 Closed Closed 80486DX2 1 & 2 Open 1 & 2 Open Open AM486 3.3v 1 & 2 Open 1 & 2 Open Open (2x) AM486 3.3v 1 & 2 Open 1 & 2 Open Open (3x) 80486DX4 1 & 2 Open 1 & 2 Closed Closed Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON’T) Type JP27 JP36 JP40 JP43 80486SX Open Pins 1 & 2 Open Open closed SL80486SX Open Pins 2 & 3 Open Open closed CX486DX (1x) Pins 1 & 2 Pins 1 & 2 Open Open closed closed CX486DX (2x) Pins 2 & 3 Pins 1 & 2 Open Open closed closed 80486DX Open Pins 1 & 2 Open Open closed SL80486DX Open Pins 2 & 3 Open Open closed 80486DX2 Open Pins 1 & 2 Open Open closed AM486 3.3v Open Pins 1 & 2 Open Open (2x) closed AM486 3.3v Open Pins 1 & 2 Open Open (3x) closed 80486DX4 Open Pins 2 & 3 Closed Open closed CPU VOLTAGE SELECTION Voltage JP1 3.3v Open 5v Closed VL BUS WAIT STATE SELECTION Setting JP33 » 0 Open 1 Closed VL BUS SPEED SELECTION Speed JP34 » <= 33MHz Open >33 MHz Closed