User's Manual
Chapter 4: System Safety 
4-1  Electrical Safety Precautions ..........................................................................  4-1
4-2  General Safety Precautions ...........................................................................  4-2
4-3  ESD Precautions ............................................................................................  4-3
4-4  Operating Precautions ....................................................................................  4-4
Chapter 5: Advanced Serverboard Setup
5-1  Handling the Serverboard ..............................................................................  5-1
5-2  Processor and Heatsink Installation ...............................................................  5-2
5-3  Connecting Cables .........................................................................................  5-5
Connecting Data Cables ..........................................................................  5-5
Connecting Power Cables .......................................................................  5-5
Connecting the Control Panel ..................................................................  5-5
5-4  I/O Ports .........................................................................................................  5-6
5-5  Installing Memory ...........................................................................................  5-7
5-6  Adding PCI Cards ...........................................................................................  5-9
5-7 Serverboard Details  ......................................................................................  5-10
X7DBU Layout .......................................................................................  5-10
X7DBU Quick Reference .......................................................................  5-11
5-8 Connector Defi nitions  ...................................................................................  5-12
ATX Power Connector ...........................................................................  5-12
Auxiliary Power Connector .....................................................................  5-12
Processor Power Connector ..................................................................  5-12
NMI Button .............................................................................................  5-12
Power LED .............................................................................................  5-12
HDD LED ...............................................................................................  5-13
NIC1 LED ...............................................................................................  5-13
NIC2 LED ...............................................................................................  5-13
Universal Information LED .....................................................................  5-13
Power Fail LED ......................................................................................  5-14
Reset Button ..........................................................................................  5-14
Power Button ..........................................................................................  5-14
Universal Serial Bus (USB0/1) ...............................................................  5-14
Universal Serial Bus Headers ................................................................  5-15
Serial Ports .............................................................................................  5-15
Fan Headers ..........................................................................................  5-15
Chassis Intrusion ....................................................................................  5-16
Power LED/Speaker ...............................................................................  5-16
ATX PS/2 Keyboard and PS/2 Mouse Ports .........................................  5-16
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