OCEAN INFORMATION SYSTEMS, INC. HIPPO DCA2 486 Processor 80486SX/SL80486SX/80487SX/CX486DX/80486DX/SL80486DX/ CX486DX2/AM486DX2/80486DX2/SL80486DX2/80486DX4/P24T Processor 25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz Speed Chip Set Unidentified Video Chip None Set Maximum 96MB Onboard Memory Maximum None Video Memory Cache None BIOS AMI/MR Dimensions 279mm x 215mm I/O Options 32-bit VESA local bus slots (3) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Chassis fan power JP2 Speaker P4 Reset switch P1 Power LED & keylock P5 Turbo switch P2 External battery P8 Turbo LED P3 32-bit VESA local bus SL1 - SL3 slots Note: JP2 may not be present. USER CONFIGURABLE SETTINGS Function Label Position » Fan voltage select 12v JP1 Pins 2 & 3 closed Fan voltage select 5v JP1 Pins 1 & 2 closed » Reserved for future use (CPU JP5 Pins 1 & 2 signal reset source) closed » Reserved for future use (SL CPU JP13 Pins 2 & 3 select) closed » Reserved for future use (CPU JP16 Open multiplier 2.5x) » Reserved for future use (CPU JP17 Open multiplier 2x) » Reserved for future use (EPMI) JP18 Open » CMOS memory normal operation JP19 Pins 2 & 3 closed CMOS memory clear JP19 Pins 1 & 2 closed » Power good signal detect from JP20 Pins 1 & 2 power supply closed Power good signal detect from JP20 Pins 2 & 3 board closed » Monitor type select color JP21 Pins 1 & 2 closed Monitor type select monochrome JP21 Pins 2 & 3 closed » Reserved for future use (Cyrix JP22 Open voltage select 3.3v) » Reserved for future use (Cyrix JP23 Open voltage select 3.6v) » Reserved for future use (Cyrix JP24 Open voltage select 3.8v) » Reserved for future use (Cyrix JP25 Open voltage select 4v) » Reserved for future use JP26 Pins 1 & 2 (Intel/AMD CLKMUL) closed » Reserved for future use JP27 Closed (Intel/AMD voltage 3.45v/5v) » Reserved for future use (force JP28 Open voltage to 5v) DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 4MB (1) 1M x 36 None None None 6MB (1) 1M x 36 None (1) 512K x None 36 8MB (1) 1M x 36 None (1) 512K x (1) 512K x 36 36 8MB (1) 1M x 36 (1) 1M x 36 None None 8MB (1) 2M x 36 None None None 12MB (1) 1M x 36 None (1) 2M x 36 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 12MB (1) 2M x 36 None (1) 1M x 36 None 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 1M x 36 (1) 1M x 36 (1) 2M x 36 None DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 16MB (1) 2M x 36 None (1) 1M x 36 (1) 1M x 36 16MB (1) 2M x 36 None (1) 2M x 36 None 16MB (1) 2M x 36 (1) 2M x 36 None None 16MB (1) 4M x 36 None None None 20MB (1) 1M x 36 None (1) 2M x 36 (1) 2M x 36 20MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 None 24MB (1) 1M x 36 (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 24MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 None 24MB (1) 2M x 36 None (1) 2M x 36 (1) 2M x 36 24MB (1) 2M x 36 None (1) 4M x 36 None 24MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 None 24MB (1) 4M x 36 None (1) 2M x 36 None 28MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 28MB (1) 2M x 36 None (1) 4M x 36 (1) 1M x 36 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 32MB (1) 2M x 36 (1) 2M x 36 (1) 4M x 36 None 32MB (1) 4M x 36 None (1) 2M x 36 (1) 2M x 36 32MB (1) 4M x 36 None (1) 4M x 36 None 32MB (1) 4M x 36 (1) 4M x 36 None None 40MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 40MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 None 40MB (1) 2M x 36 None (1) 4M x 36 (1) 4M x 36 40MB (1) 2M x 36 None (1) 8M x 36 None 48MB (1) 2M x 36 (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 48MB (1) 2M x 36 (1) 2M x 36 (1) 8M x 36 None 48MB (1) 4M x 36 None (1) 4M x 36 (1) 4M x 36 48MB (1) 4M x 36 None (1) 8M x 36 None 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 None 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 None 72MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 72MB (1) 2M x 36 None (1) 8M x 36 (1) 8M x 36 80MB (1) 2M x 36 (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 80MB (1) 4M x 36 None (1) 8M x 36 (1) 8M x 36 96MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 Note: Banks 0 & 1 only accept Dynamicache modules. CPU SPEED SELECTION Speed JP3 JP4 25MHz Pins 1 & 2 closed Pins 1 & 2 closed 33MHz Pins 2 & 3 closed Pins 2 & 3 closed 50iMHz Pins 1 & 2 closed Pins 1 & 2 closed 66iMHz Pins 2 & 3 closed Pins 2 & 3 closed 75iMHz Pins 1 & 2 closed Pins 1 & 2 closed 100iMHz Pins 2 & 3 closed Pins 2 & 3 closed CPU TYPE SELECTION Type JP6 JP7 JP8 JP10 JP14 JP15 80486SX Open Open Open 2 & 3 2 & 3 2 & 3 SL80486SX Open Open Open 2 & 3 2 & 3 2 & 3 80487SX Open Open 2 & 3 1 & 2, 2 & 3 2 & 3 3 & 4 CX486DX Open 2 & 3 1 & 2 1 & 2, 2 & 3 2 & 3 3 & 4 80486DX Open Open 1 & 2 1 & 2, 2 & 3 2 & 3 3 & 4 SL80486DX Open Open 1 & 2 1 & 2, 2 & 3 2 & 3 3 & 4 CX486DX2 Open 1 & 2 1 & 2 1 & 2, 2 & 3 2 & 3 3 & 4 AM486DX2 Open Open 1 & 2 1 & 2, 2 & 3 2 & 3 3 & 4 80486DX2 Open Open 1 & 2 1 & 2, 2 & 3 2 & 3 3 & 4 SL80486DX2 Open Open 1 & 2 1 & 2, 2 & 3 2 & 3 3 & 4 80486DX4 Open Open 1 & 2 1 & 2, 2 & 3 2 & 3 3 & 4 P24T Open Open 1 & 2 1 & 2, 2 & 3 2 & 3 3 & 4 VL BUS WAIT STATE SELECTION Setting JP12 0 Pins 2 & 3 closed » 1 Pins 1 & 2 closed VL BUS SPEED SELECTION Setting JP11 » <= 33MHz Pins 2 & 3 closed >33 MHz Pins 1 & 2 closed VL BUS SELECTION Setting JP9 JW1 » Synchronous Open Pins 2 & 3 closed Nonsynchronous Pins 2 & 3 closed Pins 1 & 2 closed MISCELLANEOUS TECHNICAL NOTE The location of pin 1 on all jumpers is unidentified.