MI300X GPU Changed SMI300XS Questions

TheAOM (Add-On Module) cardis a crucial expansion module used inSupermicro MI300X GPU systemsfor enhanced connectivity (e.g., RAID controllers, additional network interfaces, or IPMI management).

What happens if AOM cables are misplaced?

The AOM card may not function

The system depends onspecific cabling configurationsto communicate with the AOM module.

Incorrect connections can causehardware failures, incorrect detection, or data transmission errors.

PCIe lane allocation may be disrupted

Many AOM cards usePCIe lanesfor data transmission.Misplacing cables can disable or limit their bandwidth, leading to performance degradation.

BIOS may not detect the AOM card

Some AOM cards requirefirmware initialization, which only happens if the correct ports are used.

Incorrect Answers Explained:

A (System will self-destruct)→ The systemwill not explode, butit may fail to boot properly.

B (Customer will be happy)→ Misconfigured AOM cards typically lead tosystem errors and dissatisfied customers.

D (System will function normally)→ If cables are misplaced,the system will not function properly.

Official Documentation Reference:

Supermicro MI300X GPU System Hardware Guidestates thatAOM cables must be reconnected in their proper ports for the system to function correctly.

To remove theheatsink from the motherboard tray,a T30 Torx bit is required. This tool ensuresproper torque applicationandprevents damageto both the heatsink and the motherboard.

Why a T30 Torx bit is necessary?

Supermicro MI300X GPU systems use precision heatsink retention mechanisms.

Theheatsink screws are secured with factory torque settingsand require aT30 Torx bitfor safe removal.

Using an incorrect tool (Phillips screwdriver, T20, or T40) can strip the screw heads, making it difficult to remove the heatsink without causing damage.

Incorrect Answers Explained:

A (PH2 Phillips screwdriver)→ Not strong enough for heatsink screws, which requirehigh torquefor proper seating.

C (T20 Torx bit)→ Toosmall, risksstrippingthe screws.

D (T40 Torx bit)→ Toolarge, does not fit the heatsink screws.

Official Documentation Reference:

Supermicro MI300X Service Manualspecifies that aT30 Torx bitmust be used to remove the heatsinkwithout damaging the motherboard.

When reinstalling theNVMe backplane, several critical cables must be properlyreconnectedto ensure the system functions correctly.

Required Connections:

SATA Cable→ Some NVMe backplanesalso support SATA drives, requiring SATA connectivity.

Power Cables→ The NVMe backplanerequires direct powerto enable SSD operations.

MCIO Cables→ These cables providehigh-speed data connectivitybetween the NVMe drives and the motherboard.

54-Volt Power Cable→ Thissupplies direct powerto the NVMe backplane foroptimal performance and stability.

Why other options are incorrect?

B (Only SATA cable)→ NVMe backplanes usePCIe-based storage. While SATA connectionsmayexist,they are not the only required cables.

C (Only MCIO cables)→ While MCIO cables are necessary for PCIe-based NVMe drives,power cables must also be reconnectedfor the system to function.

D (Only power cables)→Data communication would failwithout MCIO connections, rendering the systemunable to detect NVMe drives.

Official Documentation Reference:

Supermicro NVMe Service GuideandAS-8125GS-TNMR2 Installation Manualemphasize thecorrect reinstallation of power and data cablesto avoidhardware malfunctions.

To remove themidplane bracketin theAS-8125GS-TNMR2 system, you must remove4 screws total(2 on each side of the chassis).

Why 4 screws?

The midplane bracket is secured by 2 screws per sideto maintain its structural integrity.

Loosening all 4 screws allows safe removal without excessive force.

Forcing the bracket without removing the screws risks damaging the mounting points.

Incorrect Answers Explained:

A (2 screws total)→ Not enough, as screws on both sides must be removed.

C (8 screws total)→ More than necessary;only 4 screws hold the midplane bracket.

D (6 screws total)→ Incorrect count;only 2 screws per side are required.

Official Documentation Reference:

Supermicro AS-8125GS-TNMR2 Installation Guideexplicitly states thattwo screws on each side (4 total) must be removed to release the midplane bracket.