UNIDENTIFIED NEAT-286 (VER. 2) Processor 80286 Processor Speed 16/20MHz Chip Set Neat Video Chip Set None Maximum Onboard Memory 8MB Maximum Video Memory None Cache None BIOS Unidentified Dimensions 330mm x 218mm I/O Options External memory card NPU Options 80287 [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock J1 Turbo switch JP7 Speaker J2 Turbo LED LF1 External battery J3 External memory card SL1 Reset switch JP1 USER CONFIGURABLE SETTINGS Function Label Position NPU asynchronous with CPU JP2 Pins 1 & 2 closed NPU synchronous with CPU JP2 Pins 2 & 3 closed BIOS type select 27128 JP4 Pins 1 & 2 closed BIOS type select 27256 JP4 Pins 2 & 3 closed CPU = CPU speed JP5 Pins 1 & 2 closed CPU = NPU OSC speed JP5 Pins 2 & 3 closed Monitor type select color JP6 Closed Monitor type select monochrome JP6 Open DRAM CONFIGURATION Size Bank A Bank B Bank C Bank D 512KB (18) 41256 None None None 640KB (18) 41256 (18) 4164 None None 1MB (18) 41256 (18) 41256 None None 1.5MB (18) 41256 (18) 41256 (2) 256K x None 9 1.64MB (18) 41256 (18) 4164 (2) 256K x (2) 256K x 9 9 2MB (18) 411000 None None None 2MB (18) 41256 (18) 41256 (2) 256K x (2) 256K x 9 9 3MB (18) 41256 (18) 41256 (2) 1M x 9 None 4MB (18) 411000 (18) 411000 None None 4.64MB (18) 41256 (18) 4164 (2) 1M x 9 (2) 1M x 9 5MB (18) 41256 (18) 41256 (2) 1M x 9 (2) 1M x 9 6MB (18) 411000 (18) 411000 (2) 1M x 9 None 8MB (18) 411000 (18) 411000 (2) 1M x 9 (2) 1M x 9 DRAM JUMPER CONFIGURATION Setting JP3 Banks C & D = Bank 0 1 & 2, 3 & 4, 6 & 7, 11 & 12, 13 & 14, 16 & 17, 18 & 19, 23 & 24, 28 & Banks A & B = Bank 1 29 Banks A & B = Bank 0 2 & 3, 4 & 5, 7 & 8, 9 & 10, 12 & 13, 14 & 15, 17 & 18, 19 & 20, 22 & 23, Banks C & D = Bank 1 24 & 25, 27 & 28, 29 & 30 Note: Pins designated should be in the closed position.