Installing and Replacing Desktop Board Components 
51 
Connecting Power Supply Cables 
 CAUTION 
Failure to use an appropriate power supply and/or not connecting the 12 V power 
connector (Figure 23, A) to the Desktop Board may result in damage
 to the board or 
the system may not function properly. 
Figure 23 shows the location of the power connectors. 
 The 2 x 12 pin main powe
r 
connector (Figure 23, B) is backwards compatible with ATX12V power supplies with 
2 x 10 connectors.  
 
NOTE 
If your power supply has a 2 x 10 main power connector, it is recommended that you 
do not install a PCI Express x16 graphics card unless it has a direct connection to the 
power supply. 
 
Figure 23.  Connecting Power Supply Cables 
1.  Observe the precautions in "Before You Begin" on page 27. 
2.  Connect the 12 V processor core voltage power supply cable to the 2 x 2 pin 
connector (Figure 23, A).   
3.  Con
n
ect the main power supply cable to the 2 x 12 pin connector (Figure 23, B).