MICRO COMPUTER SYSTEMS CORPORATION V-286 Processor 80286 Processor Speed 12MHz Chip Set VLSI Max. Onboard DRAM 4MB Cache None BIOS AMI Dimensions 330mm x 218mm I/O Options None NPU Options 80287 [Image] CONNECTIONS Purpose Location Purpose Location Reset switch W6 Speaker W15 Turbo LED W7 External battery W16 Turbo switch W11 Power LED & keylock W18 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Zero wait state enabled SW1/1 Off Zero wait state disabled SW1/1 On » Keyboard controlled speed SW1/2 On switch enabled Keyboard controlled speed SW1/2 Off switch disabled » Monitor type select color SW1/3 Off Monitor type select SW1/3 On monochrome » NPU clock speed select SW1/4 On 7.159MHz NPU clock speed select SW1/4 Off 14.318MHz » Fastmode enabled SW1/5 On Fastmode disabled SW1/5 Off » ROM wait state select 2 wait SW1/6 On states ROM wait state select 1 wait SW1/6 Off state » Factory configured - do not SW1/7 Off alter » AT bus speed select 6MHz SW1/8 On AT bus speed select 8MHz SW1/8 Off » Factory configured - do not W8 Closed alter » BIOS type select 27256 W9 pins 2 & 3 closed BIOS type select 27128 W9 pins 1 & 2 closed » Battery type select internal W12 pins 1 & 2 closed Battery type select external W12 pins 2 & 3 closed » Parity enabled W13 pins 2 & 3 closed Parity disabled W13 pins 1 & 2 closed Note: The locations of W12 & W13 are unidentified. DRAM CONFIGURATION Size Bank 0 Parity 0 Bank 1 Parity 1 Bank 2 Bank 3 512KB (16) (2) NONE NONE NONE NONE 41256 41256 640KB (16) (2) (16) (2) 4164 NONE NONE 41256 41256 4164 640KB (16) (2) NONE (2) 4164 (4) NONE 41256 41256 44256 1MB (16) (2) (16) (2) NONE NONE 41256 41256 41256 41256 1MB NONE (2) NONE (2) (4) (4) 41256 41256 44256 44256 2MB (16) (2) NONE NONE NONE NONE 411000 411000 4MB (16) (2) (16) (2) NONE NONE 411000 411000 411000 411000 DRAM JUMPER CONFIGURATION Size W1 W2 W3 512KB Closed Closed Closed 640KB Closed Closed Open 640KB Closed Closed Open 1MB Open Closed Closed 1MB Open Closed Closed 2MB Open Closed Open 4MB Closed Open Closed