UNIDENTIFIED 286LX-A Processor 80286 Processor Speed 10/12MHz Chip Set VLSI Max. Onboard DRAM 4MB Cache None BIOS AMI Dimensions 330mm x 220mm I/O Options None NPU Options 80287 [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock J18 Reset switch J29 External battery J22 Turbo LED J103 Speaker J23 Turbo switch J104 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Battery select internal J28 pins 1 & 2 closed Battery select external J28 pins 2 & 3 closed » Timing mode select fast J30 pins 1 & 2 closed Timing mode select slow J30 pins 2 & 3 closed » CPU speed select 12MHz J102 pins 1 & 2 closed CPU speed select 10MHz J102 pins 2 & 3 closed » Monitor type select color SW1/4 On Monitor type select SW1/4 Off monochrome DRAM CONFIGURATION Size Bank 0 Bank 1 512KB (18) 41256 NONE 640KB (18) 41256 (18) 4164 1MB (18) 41256 (18) 41256 2MB (18) 411000 NONE 4MB (18) 411000 (18) 411000 DRAM SPEED CONFIGURATION Speed J10 J31 100ns/0 wait states pins 1 & 2 closed Closed 120ns/1 wait state pins 2 & 3 closed Open DRAM JUMPER CONFIGURATION Size SW1/1 SW1/2 SW1/3 512KB On On On 640KB Off On On 1MB On Off On 2MB Off Off On 4MB On On Off