SHUTTLE COMPUTER INTERNATIONAL, INC. HOT-553 Processor CX M1/AM K5/Pentium Processor Speed 66/75/90/100/120/125/133/150/166/180/200/MHz Chip Set Intel Video Chip Set None Maximum Onboard 256MB (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 interface, serial ports (2), cache slot, IR connector, VRM connector, USB connectors (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location IDE interface 1 IDE1 IR connector JP63 IDE interface 2 IDE2 Green PC LED JP74 Floppy drive interface J1 USB connector JP80 Speaker JP7 USB connector JP81 Power LED & keylock JP8 Parallel port P1 Reset switch JP12 32-bit PCI slots PC1 - PC4 Turbo switch JP13 Serial port 1 S1 Turbo LED JP14 Serial port 2 S2 Green PC connector JP19 Cache slot SL1 IDE interface LED JP20 VRM connector VRM PS/2 mouse interface JP52 USER CONFIGURABLE SETTINGS Function Label Position Flash BIOS voltage select 12v JP9 Pins 2 & 3 closed Flash BIOS voltage select 5v JP9 Pins 1 & 2 closed » CMOS memory normal operation JP11 Open CMOS memory clear JP11 Closed » Factory configured - do not JP59 Pins 2 & 3 closed alter Monitor type select JP71 Unidentified » Password normal operation JP72 Open Password clear JP72 Closed 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) 2M x 36 (2) 2M x 36 40MB (2) 4M x 36 (2) 1M x 36 48MB (2) 2M x 36 (2) 4M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 72MB (2) 1M x 36 (2) 8M x 36 80MB (2) 8M x 36 (2) 2M x 36 96MB (2) 4M x 36 (2) 8M x 36 128MB (2) 16M x 36 None 128MB (2) 8M x 36 (2) 8M x 36 136MB (2) 16M x 36 (2) 1M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 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. Banks are interchangeable. CACHE CONFIGURATION Size Bank 0 SL1 TAG 256KB (2) 32K x 32 None installed (1) 32K x 8 512KB (2) 32K x 32 256KB module (1) 32K x 8 installed CACHE JUMPER CONFIGURATION Size JP4 JP64 256KB Pins 1 & 2 closed Pins 2 & 3 closed 512KB Pins 2 & 3 closed Pins 1 & 2 closed CACHE TYPE CONFIGURATION Type JP78 Mixed voltage Pins 2 & 3 closed 3.3v Pins 1 & 2 closed CPU SPEED SELECTION (CYRIX) CPU Clock Multiplier JP3 JP15 JP16 JP58 JP79 speed speed 90MHz 40MHz 2x Open Open Closed Open Closed 120MHz 50MHz 2x Open Open Open Open Open 150MHz 60MHz 2x Open Closed Closed Open Open 166MHz 66MHz 2x Open Closed Open Open Open CPU SPEED SELECTION (AMD) CPU Clock Multiplier JP3 JP15 JP16 JP58 JP79 speed speed 60MHz 66MHz 1x Closed Closed Open Open Open 75MHz 50MHz 1.5x Open Open Open Open Open 90MHz 60MHz 1.5x Open Closed Closed Open Open 100MHz 66MHz 1.5x Open Closed Open Open Open CPU SPEED SELECTION (INTEL) CPU Clock Multiplier JP3 JP15 JP16 JP58 JP79 speed speed 75MHz 50MHz 1.5x Open Open Open Open Open 90MHz 60MHz 1.5x Open Closed Closed Open Open 100MHz 66MHz 1.5x Open Closed Open Open Open 120MHz 60MHz 2x Closed Closed Closed Open Open 125MHz 60MHz 2.5x Closed Open Open Closed Open 133MHz 66MHz 2x Closed Closed Open Open Open 150MHz 60MHz 2.5x Closed Closed Closed Closed Open 150MHz 50MHz 3x Open Open Open Closed Open 166MHz 66MHz 2.5x Closed Closed Open Closed Open 180MHz 60MHz 3x Open Closed Closed Closed Open 200MHz 66MHz 3x Open Closed Open Closed Open CPU VOLTAGE SELECTION Voltage J5 J6 J7 3.3v Closed Open Open 3.45v Open Closed Open 3.6v Open Open Closed VL BUS WAIT STATE SELECTION Voltage Power Supply JP50 JP51 JP56 JP57 Output Path On board 3.3v - 3.6v 1 & 2, Open Closed Closed VRM onboard VRM 3 & 4 Add on VRM 3.3v & 2.5v Open 1 & 2, 3 Open Open for P55C add on VRM & 4 Add on VRM 3.3v onboard Open Open Closed Closed for P55C VRM. 2.5v add on VRM Note: Pins designated should be in the closed position. DMA CHANNEL SELECTION Channel JP60 JP61 » 1 Pins 1 & 2 closed Pins 1 & 2 closed 3 Pins 2 & 3 closed Pins 2 & 3 closed MOUSE SELECTION Type JP52 6 pin mouse Pins 1 - 6 closed 10 pin mouse Pins 2 & 8, 3 & 9, 4 & 10, 5 & 11, 6 & 12 closed Note: Pins 1 is not shown on the mainboard. Pin labeling may be shown different on board than shown in this table.