A-TREND TECHNOLOGY CORPORATION ATC-5050 Device Type Mainboard Processor CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium/Pentium MMX Processor Speed 120/133/150/166/180/200/233MHz Chip Set Intel 430TX Maximum Onboard 256MB (EDO & SDRAM supported) Memory Cache 512KB BIOS Award Dimensions 280mm x 220mm I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, USB connector, ATX power connector [Image] CONNECTIONS Purpose Location Purpose Location ATX power ATX Serial port 2 CN2 connector Reset switch C1/pins 1 & 2 Parallel port CN3 Green PC C1/pins 4 & 5 Floppy drive CN4 connector interface Turbo LED C1/pins 7 & 8 IDE interface 2 CN5 IDE interface LED C1/pins 10 & IDE interface 1 CN6 11 Soft off power C1/pins 12 & PS/2 mouse CN7 supply 24 interface Speaker C1/pins 13 – IR connector IR1 16 Power LED & C1/pins 18 & 32-bit PCI slots PC1 – PC4 keylock 20 Chassis fan power C2 USB connector USB Serial port 1 CN1 USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JP3 Pins 2 & 3 closed CMOS memory clear JP3 Pins 1 & 2 closed Power supply select AT JP5 Pins 2 & 3 closed Power supply select ATX JP5 Pins 1 & 2 closed » Factory configured – do not SW1/6 Unidentified alter 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 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 SIMM CONFIGURATION (CON’T) Size Bank 0 Bank 1 128MB (2) 8M x 36 (2) 8M x 36 128MB (2) 16M x 36 None 136MB (2) 16M x 36 (2) 1M x 36 144MB (2) 16M x 36 (2) 2M x 36 160MB (2) 16M x 36 (2) 4M x 36 192MB (2) 16M x 36 (2) 8M x 36 256MB (2) 16M x 36 (2) 16M x 36 Note: Board accepts EDO memory. DIMM CONFIGURATION Size Bank 2 Bank 3 8MB (1) 1M x 64 None 16MB (1) 2M x 64 None 16MB (1) 1M x 64 (1) 1M x 64 24MB (1) 2M x 64 (1) 1M x 64 32MB (1) 4M x 64 None 32MB (1) 2M x 64 (1) 2M x 64 40MB (1) 4M x 64 (1) 1M x 64 48MB (1) 4M x 64 (1) 2M x 64 64MB (1) 8M x 64 None 64MB (1) 4M x 64 (1) 4M x 64 72MB (1) 8M x 64 (1) 1M x 64 80MB (1) 8M x 64 (1) 2M x 64 96MB (1) 8M x 64 (1) 4M x 64 128MB (1) 16M x 64 None 128MB (1) 8M x 64 (1) 8M x 64 136MB (1) 16M x 64 (1) 1M x 64 144MB (1) 16M x 64 (1) 2M x 64 160MB (1) 16M x 64 (1) 4M x 64 192MB (1) 16M x 64 (1) 8M x 64 256MB (1) 16M x 64 (1) 16M x 64 Note: Board accepts SDRAM memory. CACHE CONFIGURATION Size Bank 0 512KB (2) 64K x 32 CPU SPEED SELECTION (CX 6X86L) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 SW2/5 speed speed 150MHz 60MHz 2x On On Off On Off 166MHz 66MHz 2x On On On On Off 200MHz 75MHz 2x On Off On On Off CPU SPEED SELECTION (CX 6X86MX) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 SW2/5 speed speed 150MHz 60MHz 2x On On Off On Off 166MHz 66MHz 2x On On On On Off 166MHz 60MHz 2.5x On On Off On On 200MHz 66MHz 2.5x On On On On On 200MHz 75MHz 2x On Off On On Off CPU SPEED SELECTION (AM K5) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 SW2/5 speed speed 90MHz 60MHz 1.5x On On Off Off Off 100MHz 66MHz 1.5x On On On Off Off 120MHz 60MHz 1.5x On On Off Off Off 133MHz 66MHz 1.5x On On On Off Off 166MHz 66MHz 2.5x On On On On On CPU SPEED SELECTION (AM K6) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 SW2/5 speed speed 166MHz 66MHz 2.5x On On On On On 200MHz 66MHz 3x On On On Off On 233MHz 66MHz 3.5x On On On Off Off CPU SPEED SELECTION (INTEL) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 SW2/5 speed speed 120MHz 60MHz 2x On On Off On Off 133MHz 66MHz 2x On On On On Off 150MHz 60MHz 2.5x On On Off On On 166MHz 66MHz 2.5x On On On On On 180MHz 60MHz 3x On On Off Off On 200MHz 66MHz 3x On On On Off On CPU SPEED SELECTION (INTEL MMX) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 SW2/5 speed speed 166MHz 66MHz 2.5x On On On On On 200MHz 66MHz 3x On On On Off On 233MHz 66MHz 3.5x On On On Off Off CPU VOLTAGE SELECTION Voltage SW1/1 SW1/2 SW1/3 SW1/4 2.8v On Off Off Off 2.9v On Off Off On 3.3v On On Off On 3.5v On On On On