AQUARIUS SYSTEMS, INC. MB-4DUPC Processor CX486S/80486SX/SL80486SX/CX486DX/AM486DX/UMCU5S/80486DX/ SL80486DX/CX486DX2/AM486DX2/80486DX2/SL80486DX2/AM486DX4/ 80486DX4/P24D/Pentium Overdrive/CXM1 Processor 20/25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)/MHz Speed Chip Set UMC Max. 128MB Onboard DRAM Cache 128/256/512KB BIOS Award Dimensions 260mm x 220mm I/O 32-bit PCI slots (3), floppy drive interface, game port, green PC Options connector, IDE interfaces (2), parallel port, serial ports (2) NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location External battery CN1 Power LED & keylock CN9 Serial port 2 CN2 Speaker CN10 Floppy drive interface CN3 IDE interface LED D9 Parallel port CN4 Green PC connector JP9 Game interface CN5 Turbo switch JP44 IDE interface 2 CN6 Reset switch JP45 IDE interface 1 CN7 Turbo LED LED1 Serial port 1 CN8 32-bit PCI slots PC1 - PC3 USER CONFIGURABLE SETTINGS Function Jumper Position Flash BIOS voltage select 12v JP3 pins 1 & 2 closed Flash BIOS voltage select 5v JP3 pins 2 & 3 closed CMOS memory normal operation JP6 pins 1 & 2 closed CMOS memory clear JP6 pins 3 & 4 closed » Factory configured - do not JP28 Open alter » Factory configured - do not JP29 Open alter » Factory configured - do not JP31 Open alter » Factory configured - do not JP37 Open alter DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 2MB (1) 512K x NONE NONE NONE 36 4MB (1) 512K x (1) 512K x NONE NONE 36 36 4MB (1) 1M x 36 NONE NONE NONE 8MB (1) 512K x (1) 512K x (1) 512K x (1) 512K x 36 36 36 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (1) 2M x 36 NONE NONE NONE 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 2M x 36 (1) 2M x 36 NONE NONE 16MB (1) 4M x 36 NONE NONE NONE 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 8M x 36 NONE NONE NONE 64MB (1) 4M 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 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (A) (4) 64K x 8 NONE (1) 32K x 8 256KB (B) (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 512KB (4) 128K x 8 NONE (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP24 JP25 JP26 128KB Open pins 1 & 2 Open closed 256KB (A) pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed 256KB (B) pins 1 & 2 pins 2 & 3 Open closed closed 512KB pins 1 & 2, 3 & pins 1 & 2 pins 1 & 2, 3 & 4 4 closed closed closed CPU TYPE CONFIGURATION Type JP10 JP27 JP30 JP32 JP34 CX486S Open Open Open 1 & 2, 3 1 & 2 & 4 80486sx Closed Open Open Open Open SL80486SX Open Open Open 2 & 3, 4 Open & 5 CX486DX Open Open 3 & 4 1 & 2, 3 1 & 2 & 4 AM486DX Closed Open 3 & 4 Open Open UMC U5S Closed Open 1 & 2, 3 Open Open & 4 80486DX Closed Open 3 & 4 Open Open SL80486DX Open Open 3 & 4 2 & 3, 4 Open & 5 CX486DX2 Open Open 3 & 4 1 & 2, 3 1 & 2 & 4 AM486DX2 Closed Open 3 & 4 Open Open 80486DX2 Closed Open 3 & 4 Open Open SL80486DX2 Open Open 3 & 4 2 & 3, 4 Open & 5 AM486DX4 Closed Open 3 & 4 Open Open 80486DX4 Open Open 3 & 4 2 & 3, 4 Open & 5 P24D Open Open 3 & 4 2 & 3, 4 Open & 5 P24T Open Open 2 & 3 2 & 3, 4 2 & 3 & 5 CX M1 Open Closed 3 & 4 2 & 3, 4 1 & 2 & 5 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JP35 JP36 JP39 JP39 CX486S 2 & 3 2 & 3 1 & 2 1 & 2 80486sx Open Open Open Open SL80486SX Open 1 & 2 1 & 2 1 & 2 CX486DX 2 & 3 2 & 3 1 & 2 1 & 2 AM486DX Open Open Open Open UMC U5S Open Open 2 & 3 2 & 3 80486DX Open Open Open Open SL80486DX Open 1 & 2 Open Open CX486DX2 2 & 3 2 & 3 1 & 2 1 & 2 AM486DX2 Open Open Open Open 80486DX2 Open Open Open Open SL80486DX2 Open 1 & 2 Open Open AM486DX4 Open Open Open Open 80486DX4 Open 1 & 2 Open Open P24D Open 1 & 2 1 & 2 1 & 2 P24T 1 & 2 1 & 2 Open Open CX M1 2 & 3 1 & 2 1 & 2 1 & 2 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP39 JP40 JP41 JP42 CX486S 1 & 2 3 & 4 1 & 2 2 & 3 80486sx Open 1 & 2 Open 2 & 3 SL80486SX 1 & 2 3 & 4 Open 2 & 3 CX486DX 1 & 2 3 & 4 2 & 3 1 & 2, 3 & 4 AM486DX Open 1 & 2 Open 1 & 2, 3 & 4 UMC U5S 2 & 3 1 & 2 3 & 4 2 & 3 80486DX Open 1 & 2 Open 1 & 2, 3 & 4 SL80486DX 1 & 2 3 & 4 Open 1 & 2, 3 & 4 CX486DX2 1 & 2 3 & 4 2 & 3 1 & 2, 3 & 4 AM486DX2 Open 1 & 2 Open 1 & 2, 3 & 4 80486DX2 Open 1 & 2 Open 1 & 2, 3 & 4 SL80486DX2 1 & 2 3 & 4 Open 1 & 2, 3 & 4 AM486DX4 Open 1 & 2 Open 1 & 2, 3 & 4 80486DX4 1 & 2 3 & 4 Open 1 & 2, 3 & 4 P24D 1 & 2 3 & 4 Open 1 & 2, 3 & 4 P24T 1 & 2 3 & 4, 5 & 2 & 3 1 & 2, 3 & 4 6 CX M1 1 & 2 3 & 4 Open 1 & 2, 3 & 4 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP22 JP23 Cyrix pins 2 & 3 closed pins 1 & 2 closed AMD pins 1 & 2 closed pins 2 & 3 closed UMC pins 1 & 2 closed pins 2 & 3 closed Intel pins 1 & 2 closed pins 1 & 2 closed CPU SPEED CONFIGURATION Speed JP5 JP7 JP8 20MHz Open Open Open 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 100iMHz Closed Closed Closed CPU SPEED CONFIGURATION (80486DX4 ONLY) Speed JP33 2x pins 2 & 3 closed 2.5x pins 1 & 2 closed 3x Open CPU CONFIGURATION Type JP38 P24D write through pins 1 & 2 closed P24D write back pins 2 & 3 closed AMD CPU 2x pins 1 & 2 closed AMD CPU 3x Open Other CPU types Open CPU VOLTAGE CONFIGURATION Voltage JP18 JP19 JP20 JP49 JP50 JP51 jp53 3.3v 1 & 2 1 & 2 1 & 2 Open Open Open Closed 3.45v 1 & 2 1 & 2 1 & 2 Closed Open Open Open 3.6v 1 & 2 1 & 2 1 & 2 Open Closed Open Open 4v 1 & 2 1 & 2 1 & 2 Open Open Closed Open 5v 2 & 3 2 & 3 2 & 3 Open Open Open Open Note: Pins designated should be in the closed position. DMA CONFIGURATION DMA JP47 JP48 DMA 1 pins 1 & 2 closed pins 1 & 2 closed DMA 3 pins 2 & 3 closed pins 2 & 3 closed