Chapter 1: Introduction Jumper Description Default Setting JA2 LVD SCSI Ch A Term. (p. 2-20) Open (Enabled) JA4 LVD SCSI Ch B Term. (p. 2-20) Open (Enabled) JA6 50pin SCSI Ch B Term. (p. 2-20)Open (Enabled) JA7 Onboard SCSI Enable (p. 2-20) Open (Enabled) JP1 Front Side Bus Speed (p. 2-18) Closed (100 MHz) JP3 Spread Spectrum Enable Closed (Enabled) JP55 3rd P/S Failure Alarm (p. 2-18) Open (Disabled) JP56 Buzzer Alarm (p. 2-19) Closed (Enabled) JP57 BIOS Select (p. 2-19) Pin 1-2 (Pri. BIOS) JP58 Onboard LAN (p. 2-19) Open (Enabled) Introduction DIP Switch Description (p.
2-17) Default Setting Switch 1 (1-4) CPU/Core Bus Ratio Only 4 ON (5.5x) Switch 2 Manufacturer's Setting All OFF Connector Description ATX Power#1 Primary ATX Power Connector #1 (p. 2-11) ATX Power#2 Primary ATX Power Connector #2 (p. 2-11) CHASSIS FAN Chassis Fan Header (4 total) (p. 2-15) COM1/2 COM1/2 Serial Port Connector (p. 2-15) CPU1/2/3/4 FAN CPU 1/2/3/4 Fan Header (p. 2-15) Ethernet Port Ethernet Port (p. 2-16) J1-J4 CPU Slots 1 through 4 (p. 2-2) J13, J14 IDE Hard Disk Drive Connectors (p. 2-22) J15 Floppy Disk Drive Connector (p. 2-21) J16 Parallel Printer Port (p. 2-21) J18 PS/2 Keyboard/Mouse (p. 2-15) JA1 Ultra160 SCSI Connector (Ch A) (p.
2-23) JA3 Ultra160 SCSI Connector (Ch B) (p. 2-23) JA5 50-pin SCSI Connector (Ch B) (p. 2-22) JF1 Front Control Panel (p. 2-9) MEC Memory Expansion Card Slot (p. 2-4) OH FAN Overheat Fan Header (2 total) (p. 2-15) PWR P Power Supply Fail Signal (p. 2-16) PWR_SEC Secondary ATX Power Connector (p. 2-11) SLED SCSI LED Indicator (p. 2-17) U25 Universal Serial Bus Ports (p. 2-16) WOR Wake-on-Ring Header (p. 2-16) Jumpers not indicated are for test purposes only. 1-7