Installing System Components | 291 
 
 
9  Install the system-board assembly. See “Installing a System-Board 
Assembly” on page 143. 
10  Reconnect the system to its electrical outlet, and turn on the system 
and attached peripherals. 
If the problem persists, see “Getting Help” on page 310. 
Troubleshooting Expansion Cards 
NOTE: When troubleshooting an expansion card, see the documentation for your 
operating system and the expansion card. 
CAUTION: Many repairs may only be done by a certified service technician. You 
should only perform troubleshooting and simple repairs as authorized in your 
product documentation, or as directed by the online or telephone service and 
support team. Damage due to servicing that is not authorized by Dell is not 
covered by your warranty. Read and follow the safety instructions that came with 
the product. 
1  Turn off the system and attached peripherals, and disconnect the 
system from the electrical outlet. 
2  Remove the system-board assembly. See “Removing a System-Board 
Assembly” on page 142. 
3  Ensure that each expansion card is firmly seated in its connector. See 
“Installing the Expansion Card” on page 157. 
4  Install the system-board assembly. See “Installing a System-Board 
Assembly” on page 143. 
5  Reconnect the system to the electrical outlet, and turn on the system 
and attached peripherals. 
6  If the problem is not resolved, see “Getting Help” on page 310.