Owners Manual

a. Loosen both the heat sink screws completely.
b. Lower the PHM on to the blue retention clips, following the procedure described in step 2.
c. Secure the PHM to the system board, following the replacement instructions listed in step 3.
NOTE: Do not tighten the retention screws to more than 0.13 kgf-m (1.35 N.m or 12 in-lbf).
Figure 37. Installing a processor and heat sink module
Next steps
1. Follow the procedures in After working inside your system.
Expansion cards and expansion card risers
An expansion card in the system is an add-on card that can be inserted into an expansion slot on the system board or a slot on a
riser card to add enhanced functionality to the system through the expansion bus.
NOTE:
A System Event Log (SEL) event is logged if an expansion card riser is not supported or missing. It does not prevent
your system from turning on. However, if F1/F2 pause occurs and an error message is displayed.
Expansion bus specifications
The NX3340 system supports PCI express (PCIe) generation 3 expansion cards, which are installed on the system using
expansion card risers. This system supports 1A, and 2A expansion card risers.
Expansion card installation guidelines
Depending on your system configuration, the following PCI Express (PCIe) generation 3 expansion cards are supported:
Table 11. Expansion card riser configurations
Expansion card riser PCIe slots on the
riser
Processor
connection
Height Length Slot
width
Riser 1A Slot 1 Processor 1 Low Profile Half Length x16
Slot 2 Processor 1 Low Profile Half Length x16
Riser 2A Slot 3 Processor 2 Low Profile Half Length x16
Installing and removing system components 77