J-MARK COMPUTER CORPORATION 5TXC Processor CX 6X86/CX 6X86/CX 686MX/IBM 6X86/AM K5/AM K6/Pentium Processor Speed 90/100/120/133/150/166/200/233/266/300MHz Chip Set Intel Video Chip Set None Maximum Onboard 512MB (EDO supported) Memory Maximum Video None Memory Cache 256/512KB BIOS Award Dimensions 250mm 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 connectors (2), ATX power connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location ATX power ATX Parallel port J3 connector Serial port 2 CN1 Floppy drive J6 interface Serial port 1 CN2 IDE interface 1 J9 Power LED & C1 IDE interface 2 J10 keylock Speaker C2 IR connector J15 Reset switch C3 USB connector 1 J16 Turbo LED C4 USB connector 2 J17 Turbo switch C5 Soft off power J20 supply CPU fan power C6 IDE interface LED J21/pins 1 & 3 Chassis fan power FAN2 Green PC connector J21/pins 2 & 4 Chassis fan power FAN3 32-bit PCI slots PC1 – PC4 PS/2 mouse J1 interface USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JP2 Pins 2 & 3 closed CMOS memory clear JP2 Pins 3 & 4 closed Flash BIOS voltage select 12v JP3 Pins 1 & 2 closed Flash BIOS voltage select 5v JP3 Pins 2 & 3 closed 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 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 0 Bank 1 32MB (1) 2M x 64 (1) 2M x 64 48MB (1) 2M x 64 (1) 4M x 64 64MB (1) 4M x 64 (1) 4M x 64 128MB (1) 8M x 64 (1) 8M x 64 256MB (1) 16M x 64 (1) 16M x 64 512MB (1) 32M x 64 (1) 32M x 64 CACHE CONFIGURATION Size Bank 0 TAG 256KB (2) 32K x 32 (1) 32K x 8 512KB (2) 64K x 32 (1) 32K x 8 CPU SPEED SELECTION (CX 6X86) CPU Clock Multiplier U22/1 U22/2 U22/3 U22/4 U22/5 U22/6 speed speed 150MHz 60MHz 2x Off Off On Off Off On 166MHz 66MHz 2x Off Off On Off Off Off 200MHz 75MHz 2x Off Off On Off On Off CPU SPEED SELECTION (CX 6X86MX) CPU Clock Multiplier U22/1 U22/2 U22/3 U22/4 U22/5 U22/6 speed speed 166MHz 66MHz 2.5x Off On On Off Off On 200MHz 75MHz 2x Off Off On Off On Off 233MHz 66MHz 3x Off On Off Off Off Off CPU SPEED SELECTION (IBM 6X86) CPU Clock Multiplier U22/1 U22/2 U22/3 U22/4 U22/5 U22/6 speed speed 150MHz 60MHz 2x Off Off On Off Off On 166MHz 66MHz 2x Off Off On Off Off Off 200MHz 75MHz 2x Off Off On Off On Off CPU SPEED SELECTION (AM K5) CPU Clock Multiplier U22/1 U22/2 U22/3 U22/4 U22/5 U22/6 speed speed 100MHz 66MHz 1.5x Off Off Off Off Off Off 133MHz 66MHz 1.5x Off Off Off Off Off Off 166MHz 66MHz 2.5x Off On On Off Off Off CPU SPEED SELECTION (AM K6) CPU Clock Multiplier U22/1 U22/2 U22/3 U22/4 U22/5 U22/6 speed speed 166MHz 66MHz 2.5x Off On On Off Off Off 200MHz 66MHz 3x Off On Off Off Off Off 233MHz 66MHz 3.5x Off Off Off Off Off Off 266MHz 66MHz 4x On Off On Off Off Off 300MHz 66MHz 4.5x On On On Off Off Off CPU SPEED SELECTION (INTEL) CPU Clock Multiplier U22/1 U22/2 U22/3 U22/4 U22/5 U22/6 speed speed 90MHz 60MHz 1.5x Off Off Off Off Off On 100MHz 66MHz 1.5x Off Off Off Off Off Off 120MHz 60MHz 2x Off Off On Off Off On 133MHz 66MHz 2x Off Off On Off Off Off 150MHz 60MHz 2.5x Off On On Off Off On 166MHz 66MHz 2.5x Off On On 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 Voltage JP4 2.1v Pins 1 & 2 closed 2.8v Pins 7 & 8 closed 2.9v Pins 1 & 2, 7 & 8 closed 3.2v Pins 5 & 6, 7 & 8 closed 3.3v Pins 1 & 2, 5 & 6, 7 & 8 closed 3.45v Pins 3 & 4, 5 & 6, 7 & 8 closed 3.52v Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed