UNIDENTIFIED MBVLSI-168 B 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 JP1 Turbo Switch JP4 Power LED & keylock JP2 Turbo LED JP5 Speaker JP3 External battery JP17 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Memory speed select - do not JP6 N/A alter » Wait state select 0 wait JP10 Closed states » Wait state select 1 wait JP10 Open state » BIOS type select 27256 JP11 pins 1 & 2 closed BIOS type select 27128 JP11 pins 2 & 3 closed » Monitor type select color JP12 pins 1 & 2 closed Monitor type select JP12 pins 2 & 3 monochrome closed » Power good detect - do not JP16 N/A alter DRAM CONFIGURATION Size Bank 0 Parity Bank 1 Parity JP7 JP8 JP9 0 2 512KB (4) (2) NONE NONE Closed Closed Closed 44256 41256 640KB (4) (2) (4) (2) Closed Closed Open 44256 41256 4464 4164 640KB (4) (2) (16) (2) Closed Closed Open 44256 41256 4164 4164 1MB (4) (2) (4) (2) Closed Open Closed 44256 41256 44256 4164 1MB (4) (2) (16) (2) Closed Open Closed 44256 41256 4164 4164 2MB (18) NONE NONE NONE Closed Open Open 411000 4MB (18) NONE (18) NONE Open Closed Closed 411000 411000 KEYBOARD CONTROLLER CONFIGURATION Pin Number JP13 JP14 JP15 JP18 23 Open Closed Open Open 27 Open Open Closed Open 30 Closed Open Open Open 32 Open Open Open Closed Note:Make sure that the BIOS and the keyboard controller are compatible before shorting a controller pin for speed change via software.