ICL ERGOPRO E4 Processor 80486SX/80487SX/80486DX/80486DX2/ODP486SX/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)MHz Speed Chip Set OPTI Max. Onboard 256MB DRAM Max. Cache 64KB/128KB/256KB/1MB BIOS ICL Dimensions 330mm x 218mm I/O Options CPU slot, 32-bit VESA local bus slots (2), floppy drive interface, IDE interface, SCSI interface (optional), parallel port, PS/2 mouse port, serial ports (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location IDE interface J1 Hard drive LED J7 Floppy drive J2 CPU fan J8 interface Parallel port J3 Power LED J9 Serial port 1 J4 External speaker J10 Serial port 2 J5 32-bit VESA local SL9 & SL10 bus slots PS/2 mouse port J6 CPU riser slot SL11 USER CONFIGURABLE SETTINGS Function Jumper Position On-board SCSI disabled JP1 Closed On-board SCSI enabled JP1 Open Dallas CMOS chip installed JP2/A Closed Benchmark CMOS chip installed JP2/B Closed 1 local bus wait state JP3 pins 2 & 3 closed 0 local bus wait states JP3 pins 1 & 2 closed Factory configured - do not JP3 pins 5 & 6 alter closed On board speaker enabled JP4 pins 2 & 3 closed External speaker enabled JP4 pins 1 & 2 closed Housing type A JP5 Closed Housing type B JP5 Open System setup unlocked JP6 pins 2 & 3 closed System setup locked JP6 pins 1 & 2 closed Reset button enabled JP7 Closed Reset button disabled JP7 Open DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 4MB (1) 1M x 36 NONE NONE NONE 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 4M x 36 NONE NONE NONE 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 24MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 NONE 24MB (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 NONE 28MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 28MB (1) 1M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 NONE 36MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 NONE 40MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 40MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 1M 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 52MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 16M x 36 NONE NONE NONE 72MB (1) 1M x 36 (1) 1M x 36 (1) 16M x 36 NONE 80MB (1) 4M x 36 (1) 16M x 36 NONE NONE DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 84MB (1) 1M x 36 (1) 4M x 36 (1) 16M x 36 NONE 84MB (1) 4M x 36 (1) 16M x 36 (1) 1M x 36 NONE 88MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 16M x 36 88MB (1) 4M x 36 (1) 16M x 36 (1) 1M x 36 (1) 1M x 36 96MB (1) 4M x 36 (1) 4M x 36 (1) 16M x 36 NONE 96MB (1) 4M x 36 (1) 16M x 36 (1) 4M x 36 NONE 100MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 16M x 36 100MB (1) 4M x 36 (1) 16M x 36 (1) 4M x 36 (1) 1M x 36 112MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 16M x 36 112MB (1) 4M x 36 (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 128MB (1) 16M x 36 (1) 16M x 36 NONE NONE 132MB (1) 16M x 36 (1) 16M x 36 (1) 1M x 36 NONE 136MB (1) 1M x 36 (1) 1M x 36 (1) 16M x 36 (1) 16M x 36 136MB (1) 16M x 36 (1) 16M x 36 (1) 1M x 36 (1) 1M x 36 144MB (1) 4M x 36 (1) 16M x 36 (1) 16M x 36 NONE 144MB (1) 16M x 36 (1) 16M x 36 (1) 4M x 36 NONE 148MB (1) 1M x 36 (1) 4M x 36 (1) 16M x 36 (1) 16M x 36 148MB (1) 16M x 36 (1) 16M x 36 (1) 4M x 36 (1) 1M x 36 160MB (1) 4M x 36 (1) 4M x 36 (1) 16M x 36 (1) 16M x 36 160MB (1) 4M x 36 (1) 16M x 36 (1) 4M x 36 (1) 16M x 36 160MB (1) 16M x 36 (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 192MB (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 NONE 208MB (1) 4M x 36 (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 208MB (1) 16M x 36 (1) 16M x 36 (1) 4M x 36 (1) 16M x 36 256MB (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 [Image] E4 CPU RISER CARD CPU SPEED CONFIGURATION Speed JP1 25MHz Open 33MHz pins 3 & 4 closed 40MHz pins 1 & 2 closed 50MHz pins 1 & 2, 3 & 4 closed 50iMHz Open 66iMHz pins 3 & 4 closed SYSTEM SPEED CONFIGURATION Speed JP4 25MHz pins 1 & 2, 4 & 5 closed 33MHz pins 1 & 2, 5 & 6 closed 40MHz pins 2 & 3, 4 & 5 closed 50MHz pins 2 & 3, 5 & 6 closed 50i MHz pins 1 & 2, 4 & 5 closed 66i MHz pins 1 & 2, 5 & 6 closed CACHE JUMPER CONFIGURATION Size JP6 JP9 JP15 JP16 64KB Open Open unidentified unidentified 128KB pins 1 & 2 pins 3 & 4 unidentified unidentified closed closed 256KB pins 1 & 2, pins 3 & 4, pins 2 & 3 pins 2 & 3 3 & 4 5 & 6 closed closed closed closed 1MB All closed All closed pins 2 & 3 pins 2 & 3 closed closed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 64KB unidentified unidentified unidentified 128KB unidentified unidentified unidentified 256KB (4) 32K x 8 (4) 32K x 8 unidentified 1MB (4) 128K x 8 (4) 128K x 8 unidentified Note: The locations of Bank 0 and Bank 1 are unidentified.