COMPUTREND SYSTEMS, INC. TR4 Processor CX M1/AM K5/Pentium Processor Speed 90/100/120/133/150/166/200/225/233MHz Chip Set Intel Video Chip Set None Maximum Onboard 256MB (EDO supported) Memory Maximum Video None Memory Cache 256/512KB BIOS Award Dimensions 300mm x 186mm 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), IR connector, USB connectors (2), ATX power connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location ATX power ATX Power LED & JFP pins 1 - connector keylock 5 Parallel port CN1 Speaker JFP pins 7 - 10 Serial port 1 CN2 Sleep switch JFP pins 8 & 9 Serial port 2 CN3 Turbo LED JFP pins 12 & 13 USB connector CN4 Turbo switch JFP pins 15 - 17 USB connector CN5 Reset switch JFP pins 19 & 20 PS/2 mouse port CN6 IDE interface LED JFP pins 21 & 22 Floppy drive CN7 Green PC LED JGL interface IDE interface 1 CN8 Green PC connector JGS IDE interface 2 CN9 Power on/off JRMS1 switch IR connector IR Power on/off JRMS2 switch Chassis fan power JFAN 32-bit PCI slots PC1 – PC4 USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JBAT Pins 1 & 2 closed CMOS memory clear JBAT Pins 2 & 3 closed » Flash BIOS voltage select 5v JP2 Pins 1 & 2 closed Flash BIOS voltage select 12v JP2 Pins 2 & 3 closed DIMM/DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 8MB (2) 1M x 36 None None None 8MB None None (1) 1M x 64 None 16MB (2) 2M x 36 None None None 16MB None None (1) 2M x 64 None 16MB (2) 1M x 36 (2) 1M x 36 None None 16MB (2) 1M x 36 None None (1) 1M x 64 16MB None None (1) 1M x 64 (1) 1M x 64 24MB None (2) 2M x 36 (1) 1M x 64 None 32MB (2) 4M x 36 None None None 32MB None None (1) 4M x 64 None 32MB None (2) 2M x 36 (1) 2M x 64 None 40MB (2) 4M x 36 (2) 1M x 36 None None 40MB (2) 4M x 36 None None (1) 1M x 64 48MB (2) 2M x 36 None None (1) 4M x 64 48MB (2) 4M x 36 (2) 2M x 36 None None 64MB (2) 8M x 36 None None None 64MB (2) 4M x 36 (2) 4M x 36 None None 64MB None None (1) 4M x 64 (1) 4M x 64 72MB (2) 8M x 36 (2) 1M x 36 None None DIMM/DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 80MB None (2) 2M x 36 (1) 8M x 64 None 80MB (2) 8M x 36 (2) 2M x 36 None None 96MB (2) 8M x 36 (2) 4M x 36 None None 128MB None None (1) 8M x 64 (1) 8M x 64 128MB (2) 8M x 36 (2) 8M x 36 None None 128MB None None None (1) 16M x 64 192MB (2) 8M x 36 (2) 8M x 36 (1) 8M x 64 None 256MB None None (1) 16M x 64 (1) 16M x 64 256MB (2) 16M x 36 (2) 16M x 36 None None Note: Board accepts EDO memory. DIMM VOLTAGE CONFIGURATION Voltage JV1 3.3v Pins 7 & 8, 9 & 10 closed 5v Pins 1 & 2, 3 & 4 closed CACHE CONFIGURATION Size Bank 0 256KB (2) 32K x 32 512KB (2) 64K x 32 CPU SPEED SELECTION (CYRIX M1) CPU Clock Multiplier SW/1 SW/2 SW/3 SW/4 SW/5 SW/6 speed speed 133MHz 55MHz 2x On Off Off On On Off 150MHz 60MHz 2x On Off Off On Off Off 166MHz 66MHz 2x On Off Off Off Off Off 200MHz 75MHz 2x On Off Off Off On Off CPU SPEED SELECTION (CYRIX M2) CPU Clock Multiplier SW/1 SW/2 SW/3 SW/4 SW/5 SW/6 speed speed 166MHz 66MHz 2.5x On On Off Off Off Off 180MHz 60MHz 3x Off On Off On Off Off 200MHz 66MHz 3x Off On Off Off Off Off 225MHz 75MHz 3x Off On Off Off On Off CPU SPEED SELECTION (AMD) CPU Clock Multiplier SW/1 SW/2 SW/3 SW/4 SW/5 SW/6 speed speed 90MHz 60MHz 1.5x Off Off Off On Off Off 100MHz 66MHz 1.5x Off Off Off Off Off Off 120MHz 60MHz 2x On Off Off On Off Off 133MHz 66MHz 2x On Off Off Off Off Off 150MHz 60MHz 2.5x On On Off On Off Off 166MHz 66MHz 2.5x On On Off Off Off Off 200MHz 66MHz 3x Off On Off Off Off Off 233MHz 66MHz 3.5x Off Off Off Off Off Off CPU SPEED SELECTION (INTEL) CPU Clock Multiplier SW/1 SW/2 SW/3 SW/4 SW/5 SW/6 speed speed 90MHz 60MHz 1.5x Off Off Off On Off Off 100MHz 66MHz 1.5x Off Off Off Off Off Off 120MHz 60MHz 2x On Off Off On Off Off 133MHz 66MHz 2x On Off Off Off Off Off 150MHz 60MHz 2.5x On On Off On Off Off 166MHz 66MHz 2.5x On On Off Off Off Off 200MHz 66MHz 3x Off On Off Off Off Off 233MHz 66MHz 3.5x Off Off Off Off Off Off CPU VOLTAGE SELECTION (SINGLE) Voltage JV3 JV4 JV5 JV6 3.38v Open Closed Open Open 3.52v Closed Open Open Open CPU VOLTAGE SELECTION (DUAL) Voltage V core JV3 JV4 JV5 JV6 3.3v 2.8v Closed Open Open Open 3.3v 2.9v Open Open Open Closed 3.3v 3.2v Open Open Closed Open