Installing A Processor Fan Heat Sink; Installing A Fan Heat Sink And Connecting The Cable To The Processor Fan Header - Intel DX79SI Product Manual

Installing and Replacing Desktop Board Components

Installing a Processor Fan Heat Sink

The LGA2011 processor socket has four threaded holes for mounting a processor fan
heat sink. Figure 16 shows installation of a typical processor fan heat sink; yours may
differ. For detailed instructions on attaching a processor fan heat sink to the Desktop
Board, refer to the Intel boxed processor manual, Intel boxed thermal solution
manual, or instructions third-party thermal solution providers.
Connect the processor fan heat sink cable to the 4-pin processor fan header (see
Figure 16). A fan with a 4-pin connector as shown in Figure 16 is recommended;
however, fans with a 3-pin connectors can be used. However, since a 3-wire fan
cannot use the onboard fan control, the fan will always operate at full speed.
Figure 16. Installing a Fan Heat Sink and Connecting the Cable to the
Processor Fan Header
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