Supermicro SuperServer 420GH-TNGR User Manual page 63

Installing an Expansion Card in the Motherboard Tray
1. Power down the system
2. Remove the PCIe dummy shield.
3. Insert the expansion card(s) into the riser card slot(s) while aligning the rear PCI shield.
4. Replace the riser card into the motherboard expansion slot while aligning the bracket
into the chassis.
5. Rotate the release tab until the arrows point upward and clicks.
6. Replace the motherboard tray into the chassis.
Chapter 3: Maintenance and Component Installation
and remove the CPU tray.
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