GIGABYTE GS-R12T4H2-RH - Manual (Page 13)

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Hardware Installation Process
Installing the Processor
Please make sure the CPU type and speed that are supported by the motherboard.
Step 1 Raise the metal locking lever on the socket. Insert the CPU with the correct orientation.
Step 2 The CPU only fits in one orientation.
Step 3 Push the metal lever back into locked position.
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