UNIDENTIFIED S 286 SYSTEM BOARD Processor 80286 Processor Speed 6/10/12/16MHz Chip Set VLSI Video Chip Set None Maximum Onboard Memory 4MB Maximum Video Memory None Cache None BIOS Award/Phoenix Dimensions 330mm x 218mm I/O Options None NPU Options 80287 [Image] CONNECTIONS Purpose Location Purpose Location Speaker J19 Turbo switch JP4 Power LED & keylock J20 Turbo LED JP5 External battery J21 Reset switch JP6 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not DSP/2 On alter EMS port address select 0E8H - DSP/4 On 0EFH EMS port address select 098H - DSP/4 Off 09FH » Factory configured - do not JP2 Unidentified alter BIOS type select Phoenix JP7 Pins 1 & 2 closed BIOS type select Award JP7 Pins 2 & 3 closed EMS type select extended mode JP8 Open EMS type select expanded mode JP8 Closed » Factory configured - do not JP10 Unidentified alter Wait state select 1 wait state JP11 Pins 1 & 2 closed Wait state select 0 wait JP11 Pins 2 & 3 closed states Monitor type select monochrome SW1 Pins 1 & 2 closed Monitor type select color SW1 Pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 512KB (18) 41256 None 640KB (18) 41256 (18) 4164 1MB (18) 41256 (18) 41256 1MB (EMS) (18) 41256 (18) 41256 2MB (18) 411000 None 2MB (EMS) (18) 411000 None 4MB (18) 411000 (18) 411000 4MB (EMS) (18) 411000 (18) 411000 DRAM SWITCH CONFIGURATION Size DSP/6 DSP/7 DSP/8 512KB On On On 640KB On On Off 1MB On Off On 1MB (EMS) On Off Off 2MB Off On On 2MB (EMS) Off On Off 4MB Off Off On 4MB (EMS) Off Off Off DRAM JUMPER CONFIGURATION Size J18 256KB Pins 1 & 2 closed 512KB Pins 2 & 3 closed CLOCK SPEED SELECTION Speed DSP/1 JP1 Low On Pins 2 & 3 closed High Off Pins 2 & 3 closed Keyboard controlled N/A Pins 1 & 2 closed BIOS SELECTION Size JP9 DSP/5 27128 Pins 1 & 2 closed On 27256 Pins 2 & 3 closed Off I/O WAIT STATE SELECTION Wait states DSP/3 JP3 4 On Pins 2 & 3 closed 6 Off Pins 2 & 3 closed Keyboard controlled N/A Pins 1 & 2 closed