A-TREND TECHNOLOGY CORPORATION ATC-1020 Processor CX M1/AM K5/Pentium Processor Speed 75/90/100/120/133/150/166/180/200MHz Chip Set Intel Video Chip Set None Maximum Onboard 128MB (EDO supported) Memory Maximum Video None Memory Cache 256/512KB 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 port, serial ports (2), cache slot, IR connector, USB connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Floppy drive CN1 Reset switch J1 pins 1 & 2 interface Parallel port CN2 Green PC connector J1 pins 4 & 5 Serial port 1 CN3 Turbo LED J1 pins 7 & 8 Serial port 2 CN4 IDE interface LED J1 pins 10 & 11 IDE interface 1 CN5 Speaker J1 pins 12 - 15 IDE interface 2 CN6 Power LED & J1 pins 17 - keylock 21 PS/2 mouse port CN7 32-bit PCI slots PC1 – PC4 Chassis fan power FAN Cache slot SL1 IR connector IR USB connector USB USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JP8 Open CMOS memory clear JP8 Closed » Flash BIOS write protect enabled JP19 Pins 2 & 3 closed Flash BIOS write protect disabled JP19 Pins 1 & 2 closed DIMM CONFIGURATION Size Bank 2 8MB (1) 1M x 64 16MB (1) 2M x 64 32MB (1) 4M x 64 64MB (1) 8M x 64 Note: Do not install DIMM and SIMM at the same time. DRAM 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 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 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 128MB (2) 16M x 36 None Note: Board accepts EDO memory. Banks are interchangeable. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 256KB None 256KB module (1) 16K/32K x 8 installed 256KB (2) 32K x 32 Not installed (1) 16K/32K x 8 512KB (2) 64K x 32 Not installed (1) 16K/32K x 8 Note: The location of the TAG is unidentified. CACHE TAG CONFIGURATION Setting JP17 Enabled Closed Disabled Open CPU SPEED SELECTION (CYRIX) CPU Clock Multiplier JP5 JP6 JP7 JP9 JP10 speed speed 120MHz 50MHz 2x Open Open Open 1 & 2 & 3 2 133MHz 55MHz 50MHz Closed Closed N/A 1 & 2 & 3 2 150MHz 60MHz 2x Open Closed Closed 1 & 2 & 3 2 166MHz 66MHz 2x Closed Open Closed 1 & 2 & 3 2 Note: Pins designated should be in the closed position. CPU SPEED SELECTION (AMD) CPU Clock Multiplier JP5 JP6 JP7 JP9 JP10 speed speed 75MHz 50MHz 1.5x Open Open Open 1 & 1 & 2 2 90MHz 60MHz 1.5x Open Closed Closed 1 & 1 & 2 2 100MHz 66MHz 1.5x Closed Open Closed 1 & 1 & 2 2 120MHz 60MHz 1.5x Open Closed Closed 1 & 1 & 2 2 133MHz 66MHz 1.5x Closed Open Closed 1 & 1 & 2 2 166MHz 66MHz 2x Closed Open Closed 1 & 2 & 3 2 Note: Pins designated should be in the closed position. CPU SPEED SELECTION (INTEL) CPU Clock Multiplier JP5 JP6 JP7 JP9 JP10 speed speed 75MHz 50MHz 1.5x Open Open Open 1 & 1 & 2 2 90MHz 60MHz 1.5x Open Closed Closed 1 & 1 & 2 2 100MHz 66MHz 1.5x Closed Open Closed 1 & 1 & 2 2 120MHz 60MHz 2x Open Closed Closed 1 & 2 & 3 2 133MHz 66MHz 2x Closed Open Closed 1 & 2 & 3 2 150MHz 60MHz 2.5x Open Closed Closed 2 & 2 & 3 3 166MHz 66MHz 2.5x Closed Open Closed 2 & 2 & 3 3 180MHz 60MHz 3x Open Closed Closed 2 & 1 & 2 3 200MHz 66MHz 3x Closed Open Closed 2 & 1 & 2 3 Note: Pins designated should be in the closed position. CPU TYPE SELECTION Type JP11 JP14 CX6X86 Pins 1 & 2 closed Pins 1 & 2 closed CX6X86L Pins 2 & 3 closed Pins 7 & 8 closed AM K5 Pins 1 & 2 closed Pins 1 & 2 closed P54C STD Pins 1 & 2 closed Pins 3 & 4 closed P54C VRE Pins 1 & 2 closed Pins 1 & 2 closed P55C Pins 2 & 3 closed Pins 1 & 2 closed CPU VOLTAGE SELECTION (P55C ONLY) Voltage JP14 2.7v Pins 9 & 10 closed 2.8v Pins 7 & 8 closed 2.9v Pins 5 & 6 closed 3.3v Pins 3 & 4 closed 3.5v Pins 1 & 2 closed