158  |   Installing System Components 
 
 
Assembly" on page 143. 
Removing the Expansion Card for 2U Node 
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  Remove the system-board assembly. See “Removing a System-Board 
Assembly" on page 142. 
2  Remove the five screws that secure the expansion-card assembly. See 
Figure 3-17. 
3  Lift the expansion-card assembly out of the system-board assembly. 
See Figure 3-17. 
Figure 3-17.   Removing the Expansion-Card Assembly for 2U Node 
 
4  Remove the four screws securing the expansion-card lock cover. See