ICL
ERGOPRO E4
| 
 Processor  | 
 80486SX/80487SX/80486DX/80486DX2/ODP486SX/Pentium Overdrive  | 
| 
 Processor Speed  | 
 25/33/40/50(internal)/50/66(internal)MHz  | 
| 
 Chip Set  | 
 OPTI  | 
| 
 Max. Onboard DRAM  | 
 256MB  | 
| 
 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  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 IDE interface  | 
 J1  | 
 Hard drive LED  | 
 J7  | 
| 
 Floppy drive interface  | 
 J2  | 
 CPU fan  | 
 J8  | 
| 
 Parallel port  | 
 J3  | 
 Power LED  | 
 J9  | 
| 
 Serial port 1  | 
 J4  | 
 External speaker  | 
 J10  | 
| 
 Serial port 2  | 
 J5  | 
 32-bit VESA local bus slots  | 
 SL9 & SL10  | 
| 
 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 alter  | 
 JP3  | 
 pins 5 & 6 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  | 
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 closed  | 
 pins 3 & 4 closed  | 
 unidentified  | 
 unidentified  | 
| 
 256KB  | 
 pins 1 & 2, 3 & 4 closed  | 
 pins 3 & 4, 5 & 6 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 1MB  | 
 All closed  | 
 All closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 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.  | |||