DASH COMPUTER, INC. DC-420 Processor CX486DX/IBM486DX/TI486DX/SGS486DX/80486DX/AM486DX2/ (SL)486DX2/CX486DX2/IBM486DX2/TI486DX2/SGS486DX2/ 80486DX2/CX486DX4/IBM486DX4/TI486DX4/SGS486DX4/ AM486DX4/(SL)AM486DX4/SL80486DX4/P24D/CX5X86/AM X5 Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ Speed 100(internal)/120(internal)/133(internal)MHz Chip Set UMC Video Chip None Set Maximum 128MB Onboard Memory Maximum None Video Memory Cache 128/256/512/1024KB BIOS AMI Dimensions 250mm x 220mm I/O 32-bit VESA local bus slot, 32-bit PCI slots (3), floppy drive Options interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2), cache slot NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location Serial port 1 CN1 Turbo LED J10 Serial port 2 CN2 Reset switch J11 Parallel port CN3 Turbo switch J12 Floppy drive CN4 IDE interface LED J13 interface IDE interface 1 CN5 Green PC connector J14 IDE interface 2 CN6 32-bit PCI slots PC1 - PC3 External battery J4 32-bit VESA local bus SL1 slot Power LED & keylock J8 Cache slot SL2 Speaker J9 USER CONFIGURABLE SETTINGS Function Label Position Battery type select internal J4 Pins 2 & 3 closed Battery type select external J4 Closed CMOS memory clear J4 Pins 3 & 4 closed » Factory configured - do not JP1 Unidentified alter Flash BIOS voltage select 12v JP2 Pins 1 & 2 closed Flash BIOS voltage select 5v JP2 Pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 1MB (4) 256K x 9 None None 1MB None (1) 256K x 36 None 2MB None (1) 512K x 36 None 3MB (4) 256K x 9 (1) 256K x 36 (1) 256K x 36 3MB (4) 256K x 9 None (1) 512K x 36 4MB (4) 256K x 9 (1) 256K x 36 (1) 512K x 36 4MB (4) 1M x 9 None None 4MB None (1) 512K x 36 (1) 512K x 36 4MB None (1) 1M x 36 None 4MB None None (1) 1M x 36 5MB (4) 256K x 9 (1) 1M x 36 None 5MB (4) 256K x 9 None (1) 1M x 36 5MB None (1) 1M x 36 (1) 256K x 36 6MB (4) 1M x 9 None (1) 512K x 36 8MB (4) 1M x 9 (1) 1M x 36 None 8MB (4) 1M x 9 None (1) 1M x 36 8MB None (1) 1M x 36 (1) 1M x 36 8MB None (1) 2M x 36 None 8MB None None (1) 2M x 36 9MB (4) 256K x 9 (1) 1M x 36 (1) 1M x 36 9MB (4) 1M x 9 (1) 1M x 36 (1) 256K x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 9MB (4) 1M x 9 (1) 256K x 36 (1) 1M x 36 10MB (4) 1M x 9 (1) 1M x 36 (1) 512K x 36 12MB (4) 1M x 9 (1) 1M x 36 (1) 1M x 36 12MB None (1) 1M x 36 (1) 2M x 36 12MB None (1) 2M x 36 (1) 1M x 36 16MB (4) 4M x 9 None None 16MB None (1) 4M x 36 None 16MB None None (1) 4M x 36 17MB (4) 256K x 9 None (1) 4M x 36 17MB (4) 4M x 9 (1) 256K x 36 None 20MB (4) 1M x 9 (1) 4M x 36 None 20MB (4) 1M x 9 None (1) 4M x 36 24MB (4) 1M x 9 (1) 1M x 36 (1) 4M x 36 24MB (4) 1M x 9 (1) 4M x 36 (1) 1M x 36 32MB (4) 4M x 9 (1) 4M x 36 None 32MB (4) 4M x 9 None (1) 4M x 36 32MB None (1) 4M x 36 (1) 4M x 36 32MB None None (1) 8M x 36 33MB (4) 256K x 9 (1) 8M x 36 None 34MB (4) 4M x 9 (1) 4M x 36 (1) 512K x 36 36MB (4) 4M x 9 (1) 1M x 36 (1) 4M x 36 36MB (4) 1M x 9 (1) 4M x 36 (1) 4M x 36 48MB (4) 4M x 9 (1) 4M x 36 (1) 4M x 36 48MB (4) 4M x 9 None (1) 8M x 36 48MB None (1) 8M x 36 (1) 4M x 36 64MB None (1) 8M x 36 (1) 8M x 36 64MB None (1) 16M x 36 None 65MB None (1) 256K x 36 (1) 16M x 36 66MB None (1) 512K x 36 (1) 16M x 36 68MB None (1) 1M x 36 (1) 16M x 36 72MB None (1) 2M x 36 (1) 16M x 36 80MB None (1) 4M x 36 (1) 16M x 36 96MB None (1) 8M x 36 (1) 16M x 36 128MB None (1) 16M x 36 (1) 16M x 36 Note: Any combination of memory is valid. This table only shows a sample of possible configurations. CACHE CONFIGURATION Size SL1 128KB 128KB module installed 256KB 256KB module installed 512KB 512KB module installed 1MB 1MB module installed CPU SPEED SELECTION Speed JP3A JP3B JP3C 25MHz Open Open Closed 33MHz Closed Closed Closed 40MHz Open Closed Closed 50iMHz Open Open Closed 50MHz Closed Open Open 66iMHz Closed Closed Closed 75iMHz Open Open Closed 80iMHz Open Closed Closed 100iMHz Closed Closed Closed 120iMHz Open Closed Closed 133iMHz Closed Closed Closed CPU TYPE SELECTION Type JP6 JP7 JP8A JP8B JP9A CX486DX Open Open Open 1 & 2 1 & 2 IBM486DX Open Open Open 1 & 2 1 & 2 TI486DX Open Open Open 1 & 2 1 & 2 SGS486DX Open Open Open 1 & 2 1 & 2 80486DX Open Closed 2 & 3 Open 2 & 3 AM486DX2 Open Closed 2 & 3 Open 2 & 3 (SL) AM486DX2 Closed Open 1 & 2 Open 1 & 2 CX486DX2 Open Open Open 1 & 2 1 & 2 IBM486DX2 Open Open Open 1 & 2 1 & 2 TI486DX2 Open Open Open 1 & 2 1 & 2 SGS486DX2 Open Open Open 1 & 2 1 & 2 80486DX2 Open Closed 2 & 3 Open 2 & 3 CX486DX4 (A) Open Open 1 & 2 Open 1 & 2 CX486DX4 Open Open Open 1 & 2 1 & 2 IBM486DX4 (A) Open Open 1 & 2 Open 1 & 2 IBM486DX4 Open Open Open 1 & 2 1 & 2 TI486DX4 Open Open Open 1 & 2 1 & 2 SGS486DX4 (A) Open Open 1 & 2 Open 1 & 2 SGS486DX4 Open Open Open 1 & 2 1 & 2 AM486DX4 Open Closed 2 & 3 Open 2 & 3 (SL) AM486DX4 Closed Open 1 & 2 Open 1 & 2 SL80486DX4 Open Open 2 & 3 Open 1 & 2 P24D Open Open 1 & 2 Open 1 & 2 CX5X86 Closed Open 1 & 2 Open 1 & 2 AM X5 Closed Open 1 & 2 Open 1 & 2 Note: Pins designated should be in the closed position. (A) = Intel pin out. CPU TYPE SELECTION (CON’T) Type JP9B JP9C JP10A JP10B JP10C CX486DX 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 IBM486DX 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 TI486DX 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 SGS486DX 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 80486DX Open Open 3 & 4 Open 1 & 2, 3 & 4 AM486DX2 Open Open 3 & 4 Open 1 & 2, 3 & 4 (SL) AM486DX2 1 & 2, 3 & 4 3 & 4 1 & 2, 3 1 & 2, 3 & 3 & 4 & 4 4 CX486DX2 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 IBM486DX2 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 TI486DX2 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 SGS486DX2 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 80486DX2 Open Open 3 & 4 Open 1 & 2, 3 & 4 CX486DX4 (A) 1 & 2, 3 & 4 3 & 4 1 & 2, 3 1 & 2, 3 & 3 & 4 & 4 4 CX486DX4 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 IBM486DX4 (A) 1 & 2, 3 & 4 3 & 4 1 & 2, 3 1 & 2, 3 & 3 & 4 & 4 4 IBM486DX4 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 TI486DX4 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 SGS486DX4 (A) 1 & 2, 3 & 4 3 & 4 1 & 2, 3 1 & 2, 3 & 3 & 4 & 4 4 SGS486DX4 1 & 2 2 & 3 3 & 4 2 & 3 1 & 2, 3 & 4 AM486DX4 Open Open 3 & 4 Open 1 & 2, 3 & 4 (SL) AM486DX4 1 & 2, 3 & 4 3 & 4 1 & 2, 3 1 & 2, 3 & 3 & 4 & 4 4 SL80486DX4 1 & 2 Open 3 & 4 1 & 2 1 & 2, 3 & 4 P24D 1 & 2, 3 & 4 3 & 4 1 & 2, 3 1 & 2, 3 & 3 & 4 & 4 4 CX5X86 1 & 2, 3 & 4 3 & 4 1 & 2, 3 1 & 2, 3 & 3 & 4 & 4 4 AM X5 1 & 2, 3 & 4 3 & 4 1 & 2, 3 1 & 2, 3 & 3 & 4 & 4 4 Note: Pins designated should be in the closed position. (A) = Intel pin out. CPU TYPE SELECTION (CON’T) Type JP11 JP12A JP12B JP13 JP14 CX486DX 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 IBM486DX 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 TI486DX 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 SGS486DX 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 80486DX Open 1 & 2 1 & 2 Open Open AM486DX2 Open 1 & 2 2 & 3 Open Open (SL) AM486DX2 Open 1 & 2 1 & 2 Open 2 & 3, 4 & 5 CX486DX2 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 IBM486DX2 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 TI486DX2 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 SGS486DX2 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 80486DX2 Open 1 & 2 1 & 2 Open Open CX486DX4 (A) Open 2 & 3 1 & 2 Closed 2 & 3, 4 & 5 CX486DX4 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 IBM486DX4 (A) Open 2 & 3 1 & 2 Closed 2 & 3, 4 & 5 IBM486DX4 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 TI486DX4 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 SGS486DX4 (A) Open 2 & 3 1 & 2 Closed 2 & 3, 4 & 5 SGS486DX4 2 & 3 2 & 3 1 & 2 Open 1 & 2, 3 & 4 AM486DX4 Open 1 & 2 2 & 3 Open Open (SL) AM486DX4 Open 1 & 2 1 & 2 Open 2 & 3, 4 & 5 SL80486DX4 Open 1 & 2 1 & 2 Open 2 & 3, 4 & 5 P24D Open 1 & 2 1 & 2 Open 2 & 3, 4 & 5 CX5X86 Open 1 & 2 1 & 2 Open 2 & 3, 4 & 5 AM X5 Open 1 & 2 1 & 2 Open 2 & 3, 4 & 5 Note: Pins designated should be in the closed position. (A) = Intel pin out. CPU VOLTAGE SELECTION Voltage JP4 JP5A JP5B JP5C JP5D 3.3v Closed 1 & 2 1 & 2 1 & 2 1 & 2 4v Open 1 & 2 1 & 2 1 & 2 1 & 2 5v Closed 2 & 3 2 & 3 2 & 3 2 & 3 Note: Pins designated should be in the closed position.