DATAEXPERT CORPORATION EXP8851 Device Type Mainboard Processor CX 6X86/AM K5/Pentium Processor Speed 75/90/100/120/133/150/166/200MHz Chip Set Unidentified Video Chip Set None Maximum Onboard 128MB Memory Maximum Video Memory None Cache 256/512KB BIOS AMI Dimensions 290mm x 220mm I/O Options 32-bit PCI slots (4), green PC connector, VRM connector [Image] CONNECTIONS Purpose Location Purpose Location Serial port 2 CN1 Turbo LED J4 Serial port 1 CN2 Parallel port J5 Floppy drive interface CN3 Green PC connector JP19 IDE interface 2 CN4 IDE interface LED JP20 IDE interface 1 CN5 CPU fan power JP30 Power LED & keylock J1 32-bit PCI slots PC1 – PC4 Speaker J2 VRM connector VRM Reset switch J3 USER CONFIGURABLE SETTINGS Function Label Position » Cache type select write back JP10 Open Cache type select write through JP10 Closed » CPU pipeline enabled JP11 Closed CPU pipeline disabled JP11 Open » AT bus CLK select PCICLK/4 JP15 Pins 2 & 3 closed AT bus CLK select PCICLK/3 JP15 Pins 1 & 2 closed » CMOS memory normal operation JP18 Open CMOS memory clear JP18 Closed » Parallel port mode select JP23 Closed standard Parallel port mode select EPP JP23 Open SIMM CONFIGURATION Size Bank 0 Bank 1 8MB (2) 1M x 36 None 16MB (2) 2M x 36 None 16MB (2) 1M x 36 (2) 1M x 36 24MB (2) 2M x 36 (2) 1M x 36 32MB (2) 4M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 40MB (2) 4M x 36 (2) 1M x 36 48MB (2) 4M x 36 (2) 2M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 SIMM CONFIGURATION (CON’T) Size Bank 0 Bank 1 72MB (2) 8M x 36 (2) 1M x 36 80MB (2) 8M x 36 (2) 2M x 36 96MB (2) 8M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 8M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 256KB (A) (2) 32K x 32 None None 256KB (B) None (8) 32K x 8 (1) 8K/16K/32K x 8 512KB None (8) 64K x 8 (1) 16K/32K x 8 CACHE JUMPER CONFIGURATION Size JP12 JP13 JP14 256KB (B) Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 closed closed closed 512KB Pins 1 & 2 Pins 1 & 2 Pins 2 & 3 closed closed closed CPU SPEED SELECTION (CX 6X86) CPU Clock Multiplier JP5 JP16 JP17 JP31 speed speed 120MHz 50MHz 2x Closed Open Open Open 150MHz 60MHz 2x Closed Open Closed Open 166MHz 66MHz 2x Closed Closed Closed Open CPU SPEED SELECTION (AM K5) CPU Clock Multiplier JP5 JP16 JP17 JP31 speed speed 75MHz 50MHz 1.5x Open Open Open Open 90MHz 60MHz 1.5x Open Open Closed Open CPU SPEED SELECTION (INTEL) CPU Clock Multiplier JP5 JP16 JP17 JP31 speed speed 75MHz 50MHz 1.5x Open Open Open Open 90MHz 60MHz 1.5x Open Open Closed Open 100MHz 66MHz 1.5x Open Closed Closed Open 120MHz 60MHz 2x Closed Open Closed Open 133MHz 66MHz 2x Closed Closed Closed Open 150MHz 60MHz 2.5x Closed Open Closed Closed 166MHz 66MHz 2.5x Closed Closed Closed Closed 200MHz 66MHz 3x Open Closed Closed Closed DMA CHANNEL SELECTION Channel JP27 JP28 1 Pins 2 & 3 closed Pins 2 & 3 closed 3 Pins 1 & 2 closed Pins 1 & 2 closed BIOS SELECTION Setting JP8 JP9 » 5v flash Pins 2 & 3 closed Pins 1 & 2 closed 12v flash Pins 2 & 3 closed Pins 2 & 3 closed EPROM Pins 1 & 2 closed Pins 1 & 2 closed IDE SELECTION Setting JP21 JP22 » Normal operation Pins 2 & 3 closed Pins 2 & 3 closed Feature function Pins 1 & 2 closed Pins 1 & 2 closed