Authentic Supermicro Certification Exam SMI300XS Questions Answers

Removing themidplanein aSupermicro MI300X GPU systemrequiresdisengaging multiple system trays and power componentsbeforehand.

Why is this necessary?

Power must be fully disengaged before midplane removal

The midplane is directly connected topower distribution units (PDUs).

If power is not removed, it can causeshort circuits or hardware damage.

PCIe, motherboard, and GPU trays block access

These trays must be disengagedbefore removing the midplane, as they contain components directly connected to it.

Dummy PSUs must also be removed

Even inactive PSUs containlocking mechanismsthat must be disengaged.

Official Documentation Reference:

Supermicro AS-8125GS-TNMR2 System Removal Guideconfirms thatPSUs, dummy PSUs, PCIe trays, motherboard trays, and GPU trays must be removed before handling the midplane.

Theair shroudis a crucial component in theSupermicro MI300X GPU system, designed todirect airflow efficientlyover high-performance GPUs and CPUs.Before removing the air shroud, two screws must be removed, and they are located on both sides of the motherboard tray.

Why are these screws important?

They secure the air shroud to the chassis, preventing unwanted movement.

Removing them ensures the air shroud can be lifted safely, without damaging cooling pathways.

They prevent vibrations from GPU cooling fans from dislodging the shroud over time.

Incorrect Answers Explained:

A (On top of the motherboard tray)→ Incorrect, as the screws are not mounted on top but on thesides of the motherboard tray.

C (On both sides of the PCIe tray)→ The PCIe tray does not secure the air shroud.

D (On both sides of the GPU tray)→ The GPU tray does not directly hold the air shroud in place.

Official Documentation Reference:

Supermicro AS-8125GS-TNMR2 Cooling System Guidestates that theair shroud is secured by two screws on both sides of the motherboard tray.

Thecorrect order for removing trays before midplane removalis:

Disengage the PCIe tray first

This tray must be removed first becauseit provides access to the underlying system components.

Remove the GPU tray

TheGPU tray sits between the PCIe and motherboard traysand must be disengaged after PCIe components are cleared.

Remove the motherboard tray last

The motherboard tray isthe final component before midplane removal.

Removing it lastensures full accessto the system componentswithout obstructing critical connections.

Why other options are incorrect?

B (Motherboard before GPU tray)→ The motherboard tray must be removedlastto avoid disconnecting system-critical connections too early.

C (Motherboard tray first)→ Removing the motherboard firstrisks damagingPCIe and GPU components.

D (GPU tray first)→ TheGPU tray is dependent on the PCIe tray being removed first, making this order incorrect.

Official Documentation Reference:

Supermicro AS-8125GS-TNMR2 System Removal Guideoutlines the correct order fortray disengagement before midplane removal.