NEC Express5800 Series Maintenance Manual page 133

Chapter 2 Configuring and Upgrading the System
5. Installing Optional Devices
Notch
Pin mark
Key
Pin mark
12. Lightly push the processor to the CPU socket, and close the plate.
13. Close the socket lever marked with "← " to fix it.
→" to fix it.
14. Close the socket lever marked with "
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Express5800/R320c-E4, R320c-M4 Maintenance Guide (VMware)