DTK COMPUTER, INC. PTM-1000 (V1) Processor 80286 Processor Speed 10MHz Chip Set None Max. Onboard DRAM 1MB Cache None BIOS DTK Dimensions 333mm x 222mm I/O Options None NPU Options 80287 [Image] CONNECTIONS Purpose Location Purpose Location Speaker J17 Turbo switch J23 Power LED & keylock J19 External battery J24 Turbo LED J21 Reset switch SW2 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select color J2 pins 1 & 2 closed Monitor type select monochrome J2 pins 2 & 3 closed » DRAM speed select 0 wait states J25 Open DRAM speed select 1 wait state J25 Closed » Base memory size select 512KB J26 pins 1 & 2 closed Base memory size select 640KB J26 pins 2 & 3 closed Note:Base memory size select jumper (J26) is only functional when 1MB of DRAM is installed. DRAM CONFIGURATION Size Bank 0 Bank 1 512KB (18) 41256 NONE 640KB (18) 41256 (18) 4164 1MB (18) 41256 (18) 41256 DRAM JUMPER CONFIGURATION Size J18 512KB pins 2 & 3 closed 640KB pins 1 & 2 closed 1MB pins 2 & 3 closed BIOS CONFIGURATION Size SW1/1 SW1/2 SW1/3 SW1/4 27128 On On Off Off 27256 Off Off On On