MECER CORPORATION B815B (VER. B) Processor 80386DX/CX486DLC/CX486M6/80486SX/80486DX/80486DX2 Processor Speed 25/33/40/50(internal)/50/66(internal)MHz Chip Set Unidentified Max. Onboard DRAM128MB Cache 128/256KB BIOS AMI Dimensions 254mm x 218mm I/O Options None NPU Options 80387DX [Image] CONNECTIONS Purpose Location Purpose Location Auxiliary keyboard JP1 Turbo LED JP27 pins 11 - connector 12 External battery JP12 Turbo switch JP27 pins 16 - 17 Power LED & keylock JP27 pins 1 - Reset switch JP27 pins 19 - 5 20 Speaker JP27 pins 7 - 10 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select monochrome JP10 pins 1 & 2 closed Monitor type select color JP10 pins 2 & 3 closed » Battery enabled JP13 Closed Battery disabled JP13 Open » Factory configured - do not JP17 N/A alter » Factory configured - do not JP18 N/A alter » Factory configured - do not JP21 N/A alter » Factory configured - do not JP22 N/A alter » Factory configured - do not JP28 pins 1 & 2 alter closed » Factory configured - do not JP33 pins 2 & 3 alter closed DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 5MB (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 17MB (4) 256K x 9 (4) 4M x 9 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 64MB (4) 16M x 9 NONE 65MB (4) 256K x 9 (4) 16M x 9 68MB (4) 1M x 9 (4) 16M x 9 80MB (4) 4M x 9 (4) 16M x 9 128MB (4) 16M x 9 (4) 16M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP24 JP25 128KB Open pins 2 & 3 closed 256KB Closed pins 1 & 2 closed CPU TYPE CONFIGURATION Type J1 JP2 JP3 JP4 80386DX-40 (80MHz) 6 & 8 2 & 3 1 & 2 2 & 3 CX486DLC-40 (80MHz) 6 & 8 2 & 3 2 & 3 2 & 3 CX486M6-33 (33MHz) 5 & 7 2 & 3 2 & 3 1 & 2 CX486M6-33 (66MHz) 1 & 2 2 & 3 2 & 3 1 & 2 CX486M6-40 (40MHz) 1 & 2, 3 2 & 3 2 & 3 1 & 2 & 4 CX486M6-33 (33MHz) C6 5 & 7 2 & 3 2 & 3 1 & 2 CX486M6-33 (66MHz) C6 1 & 2 2 & 3 2 & 3 1 & 2 CX486M6-40 (40MHz) C6 1 & 2, 3 2 & 3 2 & 3 1 & 2 & 4 80486SX-25 (25MHz) 3 & 4, 5 1 & 2 2 & 3 2 & 3 & 7 80486SX-25 (50MHz) 3 & 4 1 & 2 2 & 3 2 & 3 80486SX-33 (33MHz) 5 & 7 1 & 2 2 & 3 2 & 3 80486SX-33 (66MHz) 1 & 2 1 & 2 2 & 3 2 & 3 80486DX-33 (33MHz) 5 & 7 1 & 2 2 & 3 2 & 3 80486DX-33 (66MHz) 1 & 2 1 & 2 2 & 3 2 & 3 80486DX-40 (40MHz) 1 & 2, 3 1 & 2 2 & 3 2 & 3 & 4 80486DX-50 (50MHz) 3 & 4 1 & 2 2 & 3 2 & 3 80486DX2-50 (25MHz) 3 & 4 1 & 2 2 & 3 2 & 3 80486DX2-50 (50MHz) 3 & 4, 5 1 & 2 2 & 3 2 & 3 & 7 80486DX2-66 (33MHz) 5 & 7 1 & 2 2 & 3 2 & 3 80486DX2-66 (66MHz) 1 & 2 1 & 2 2 & 3 2 & 3 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JP11 JP14 JP15 JP16 JP19 80386DX-40 (80MHz) 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 CX486DLC-40 1 & 2 2 & 3 1 & 2 2 & 3 2 & 3 (80MHz) CX486M6-33 (33MHz) 2 & 3 2 & 3 Open 1 & 2 1 & 2 CX486M6-33 (66MHz) 1 & 2 2 & 3 Open 1 & 2 2 & 3 CX486M6-40 (40MHz) 2 & 3 2 & 3 Open 1 & 2 1 & 2 CX486M6-33 (33MHz) 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 C6 CX486M6-33 (66MHz) 1 & 2 2 & 3 1 & 2 2 & 3 2 & 3 C6 CX486M6-40 (40MHz) 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 C6 80486SX-25 (25MHz) 2 & 3 2 & 3 Open 1 & 2 1 & 2 80486SX-25 (50MHz) 1 & 2 2 & 3 Open 1 & 2 2 & 3 80486SX-33 (33MHz) 2 & 3 2 & 3 Open 1 & 2 1 & 2 80486SX-33 (66MHz) 1 & 2 2 & 3 Open 1 & 2 2 & 3 80486DX-33 (33MHz) 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 80486DX-33 (66MHz) 1 & 2 2 & 3 1 & 2 2 & 3 2 & 3 80486DX-40 (40MHz) 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 80486DX-50 (50MHz) 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 80486DX2-50 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 (25MHz) 80486DX2-50 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 (50MHz) 80486DX2-66 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 (33MHz) 80486DX2-66 1 & 2 2 & 3 1 & 2 2 & 3 2 & 3 (66MHz) Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JP29 JP30 JP31 JP32 JP34 80386DX-40 Open Open Closed Closed Open (80MHz) CX486DLC-40 Open Open Closed Closed Closed (80MHz) CX486M6-33 Closed Closed Open Open Open (33MHz) CX486M6-33 Closed Closed Open Open Open (66MHz) CX486M6-40 Closed Closed Open Open Open (40MHz) CX486M6-33 Open Open Closed Closed Open (33MHz) C6 CX486M6-33 Open Open Closed Closed Open (66MHz) C6 CX486M6-40 Open Open Closed Closed Open (40MHz) C6 80486SX-25 Open Open Closed Closed Open (25MHz) 80486SX-25 Open Open Closed Closed Open (50MHz) 80486SX-33 Open Open Closed Closed Open (33MHz) 80486SX-33 Open Open Closed Closed Open (66MHz) 80486DX-33 Open Open Closed Closed Open (33MHz) 80486DX-33 Open Open Closed Closed Open (66MHz) 80486DX-40 Open Open Closed Closed Open (40MHz) 80486DX-50 Open Open Closed Closed Open (50MHz) 80486DX2-50 Open Open Closed Closed Open (25MHz) 80486DX2-50 Open Open Closed Closed Open (50MHz) 80486DX2-66 Open Open Closed Closed Open (33MHz) 80486DX2-66 Open Open Closed Closed Open (66MHz)