When replacing the air shroud onto the motherboard tray, which 2 screws should be placed...

Replacing the air shroud onto the motherboard tray in a Supermicro system involves securing it to the tray itself first for stability. The correct screws are those connecting the shroud directly to the motherboard tray, as outlined in Supermicro’s assembly guides (e.g., SYS-420 series). These initial screws align and anchor the shroud, ensuring proper fitment before additional connections (if any). Options B (PCIe tray) and C/D (fan board) are incorrect since the shroud’s primary attachment is to the motherboard tray, not other components. In DLC systems, precise shroud placement enhances cooling efficiency, supporting A as the correct choice.References:Supermicro motherboard tray assembly guides, DLC system component integration.