DIGITAL EQUIPMENT CORPORATION PRIORIS MTE Device Type Mainboard Processor 80486DX/80486DX2/P24T Processor Speed 25/33/40/50(internal)/50/66(internal)MHz Chip Set Unidentified Video Chip Set None Maximum Onboard 128MB Memory Maximum Video None Memory Cache 128/256KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options Local bus video slot, 32-bit VESA local bus slots (2), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Chassis fan power C1 Local bus video slot SL1 Speaker C2 32-bit VESA local bus SL2 & SL3 slots Note: The location of all other connectors is unidentified. USER CONFIGURABLE SETTINGS Function Label Position » Parallel port unidirectional J20 Pins 1 & 2 closed Parallel port bidirectional J20 Pins 2 & 3 closed » CMOS memory normal operation J23 Open CMOS memory clear J23 Closed Monitor type select monochrome J25 Open Monitor type select color J25 Closed » Factory configured - do not J43 Open alter » Reset switch enabled J46 Closed Reset switch disabled J46 Open » Factory configured - do not J53 Unidentified alter SIMM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 8MB (1) 2M x 36 None None None 16MB (1) 4M x 36 None None None 16MB (1) 2M x 36 (1) 2M x 36 None None 24MB (1) 4M x 36 (1) 2M x 36 None None 24MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 None 24MB (1) 2M x 36 (1) 4M x 36 None None 32MB (1) 8M x 36 None None None 32MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 None 32MB (1) 4M x 36 (1) 4M x 36 None None 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 40MB (1) 8M x 36 (1) 2M x 36 None None 40MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 40MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 None 40MB (1) 2M x 36 (1) 8M x 36 None None SIMM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 48MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 None 48MB (1) 8M x 36 (1) 4M x 36 None None 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 None 48MB (1) 4M x 36 (1) 8M x 36 None None 56MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 56MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 None 64MB (1) 8M x 36 (1) 8M x 36 None None 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 72MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 None 80MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 80MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 None 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 None 104MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 112MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 128KB (4) 32K x 8 256KB (4) 64K x 8 CACHE JUMPER CONFIGURATION Size J29 J30 J31 128KB Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 closed closed closed 256KB Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed CPU SPEED SELECTION Speed J34 J35 J36 J37 25MHz Closed Closed Open Closed 33MHz Closed Open Closed Closed 40MHz Open Open Closed Open 50iMHz Closed Closed Open Closed 50MHz Open Open Open Open 66iMHz Closed Open Closed Closed CPU TYPE SELECTION Type J52 80486DX Pins 2 & 3 closed 80486DX2 Pins 2 & 3 closed P24T Pins 1 & 2 closed VL BUS WAIT STATE SELECTION Setting J51 » 0 Pins 1 & 2 closed 1 Pins 2 & 3 closed