The support plates appear as shown when installed.
10.Install the motherboard with the external I/O ports toward the chassis rear panel. The CPU sockets should be right on top of the support plates.
Heatsink hole matched to a nut on the support plate
Make sure that the CPU heatsink holes on the motherboard perfectly match the metal nuts on the support plates; otherwise, you can not install the CPU heatsinks properly.
11.Secure the motherboard with nine (9) screws. Refer to section “2.2.2 Screw holes” for illustration.
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