When reseating the PCIe tray, how do you know when the PCIe tray has been...

Reseating the PCIe tray in a Supermicro system like the SYS-421GE-TNHR2-LCC involvesaligning it with the chassis and locking it in place. Per Supermicro’s design (e.g., SYS-420GP-TNAR), the tray has levers that start in the down (unlocked) position during insertion. When fully seated, these levers automatically move up to the locked position, clicking into place to secure the tray and ensure proper connection to power and cooling (e.g., DLC manifolds). Option A (sticking out) indicates incomplete insertion, B (slightly up) is insufficient, and C (up to down) reverses the mechanism. D reflects Supermicro’s DLC system precision, ensuring tray stability.References:Supermicro PCIe tray installation guides, DLC component alignment standards.