AST RESEARCH, INC. PREMIUM WORKSTATION/286 Processor 80286 Processor Speed 10MHz Chip Set AST Max. Onboard DRAM 4MB Cache None BIOS AST Dimensions 330mm x 218mm I/O Options Floppy drive controller module, IDE interface, parallel port, serial ports (2), video controller module NPU Options 80287 [Image] CONNECTIONS Purpose Location Purpose Location Parallel port CN1 IDE interface J2 Serial port 2 CN2 Floppy drive J3 (COM2) controller module Serial port 1 CN3 External battery J6 (COM1) Riser card CN4 Optional ROM (odd) U56 Video port CN5 Optional ROM (even) U65 Front panel J1 switches & LEDs USER CONFIGURABLE SETTINGS Function Jumper Position » BIOS type select 27128 JP7 pins 1 & 2 closed BIOS type select 27256 JP7 pins 2 & 3 closed » Factory configured - do not alter JP8 open Note:Jumper JP8 may not be present on all board revisions. DRAM CONFIGURATION Size Jumpers JP1 through Bank 0 Bank 1 JP6 512KB pins 1 & 2 closed (2) 256K x 9 NONE 1MB pins 1 & 2 closed (2) 256K x 9 (2) 256K x 9 2MB pins 2 & 3 closed (2) 1M x 9 NONE 4MB pins 2 & 3 closed (2) 1M x 9 (2) 1M x 9