Asus PCH-DL User Manual - Page 30

retention mechanism.

Page 30 highlights

11. Press down the fan and air tunnel assembly until the side rails slide past the grooves and over the rail stoppers. The protruding tab on each corner of the air tunnel should snap over the dents on the retention mechanism. Rail stopper Side rail 12. Connect the fan cable to the connector CPU_FAN1 on the motherboard. Make sure to connect to the correct fan connector. Otherwise, you will get a warning message during POST. Protruding tabs Fan connector Fan cable 13. To install a second CPU and heatsink, follow the same procedure as in the first CPU installation. For the second CPU, make sure to connect the CPU fan cable to the connector CPU_FAN2. 2-12 Chapter 2: Hardware information

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2-12
Chapter 2: Hardware information
11. Press down the fan and air tunnel
assembly until the side rails slide
past the grooves and over the rail
stoppers. The protruding tab on
each corner of the air tunnel
should snap over the dents on the
retention mechanism.
12. Connect the fan cable to the
connector CPU_FAN1 on the
motherboard.
Fan cable
Fan connector
Rail stopper
Side rail
Protruding tabs
13.To install a second CPU and heatsink, follow the same procedure as in
the first CPU installation.
Make sure to connect to the
correct fan connector.
Otherwise, you will get a
warning message during
POST.
For the second CPU, make sure to connect the CPU fan cable to the
connector CPU_FAN2.