Dell PowerEdge C6145 - Manual (Page 118)

118 | Installing System Components
NOTE: The air duct configuration differs with the number of processors installed
on the system board. For two-processor configuration, only the air duct 3 is
installed between the processors 1 and 2; for four-processor configuration, the air
ducts 1, 2 and 3 should all be installed. The Figure 3-7 shows the four-processor
configuration.
1 Align the air ducts to the system-board assembly and heat sinks by the
rivet holes. See Figure 3-7.
2 Replace the rivets to secure the air ducts to the system-board assembly
and heat sinks. See Figure 3-7.
Heat Sinks
Removing the Heat Sink
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 Recommend to turn off the system, including any attached peripherals,
and disconnect the system from its electrical outlet.
2 Remove the system-board assembly. See “Removing a System-Board
Assembly" on page 115.
3 Remove the air duct(s). See “Removing the Air Duct" on page 116.
WARNING: The heat sink may be hot to touch for some time after the system has
been powered down. Allow the heat sink to cool before removing it.
CAUTION: Never remove the heat sink from a processor unless you intend to
remove the processor. The heat sink is necessary for proper thermal conditions.
4 Using a Phillips screwdriver, loosen one of the heat-sink retention