[2025年07月]更新のSMI300XS試験問題集、SMI300XS練習テスト問題
検証済みSMI300XS問題集PDF資料 [2025]
質問 # 14
Exhibit:
When installing the midplane bracket back into the chassis, what design feature in the chassis helps you properly align the midplane bracket?
- A. Grooves in the chassis
- B. Arrows in the chassis
- C. Guide stickers in the chassis
- D. Velcro in the chassis
正解：A
解説：
Why Do Supermicro Systems Use Grooves for Alignment?
InSupermicro MI300X systems, themidplane bracket is aligned using built-in grooves in the chassis.
* Ensures Perfect Alignment
* The midplane mustline up perfectlywith power, PCIe, and data connections.
* Grooves act as physical guides, ensuringprecise placementwithout guesswork.
* Prevents Installation Errors
* Without grooves, technicians mightinstall the midplane slightly misaligned, leading to connection failures.
* Ensures PCIe and MCIO lanes align correctly, preventing signal loss.
* Supports a Tool-Free Installation
* Grooves allowdrop-in installation, reducingmanual adjustments.
* Minimizes risk of flexing or damaging the midplane PCB.
Why Other Options Are Incorrect?
* A (Guide stickers in the chassis)# Stickersmay be present for labeling but do not physically align the midplane.
* C (Arrows in the chassis)# Arrows arevisual indicators only, not physical alignment tools.
* D (Velcro in the chassis)# Velcro isnot used in midplane installation.
Official Documentation Reference:
* Supermicro AS-8125GS-TNMR2 Hardware Guideexplicitly states thatgrooves in the chassis help with midplane bracket alignment.
質問 # 15
Exhibit:
There is a flap door over the ribbon cable connection. To open it, use your finger to press down on the top of the flap door and pop it open. True or False?
- A. False
- B. True
正解：B
解説：
Theflap door mechanismis a protective feature inSupermicro MI300X systemsdesigned tosecure ribbon cable connections.
How to open it correctly?
* Press down on the top of the flap door# This disengages the locking mechanism.
* The flap door will "pop open" safelywithout damaging the ribbon cable.
* Forcing the flap without pressing down properly may break the connector.
Official Documentation Reference:
* Supermicro AS-8125GS-TNMR2 Maintenance Manualprovidesspecific instructionsonpressing down the flap door before opening it.
質問 # 16
Which cable connecting the AOM card to the motherboard is NOT a data cable?
- A. MCIO cables
- B. Power cable
- C. JNCIS1
- D. SAS cable
正解：B
解説：
Thepower cableis the only cable that isnot a data cablewhen connecting an AOM card to the motherboard.
Cable Functionality Breakdown:
* A (Power Cable) # NOT a data cable
* Supplies electrical powerto the AOM card.
* Doesnot transmit databetween components.
* B (MCIO Cables) # Data cables
* These cablestransmit high-speed NVMe data.
* C (JNCIS1) # Data cable
* This interface is used formanagement and communication.
* D (SAS Cable) # Data cable
* Used fordata storage connections.
Official Documentation Reference:
* Supermicro AOM Expansion Module Guidestates that thepower cable is the only non-data cablein AOM installations.
質問 # 17
When securing the PCIe tray, why must it be screwed in at one end of the chassis first before installing another tray at the opposite end?
- A. Because the tray will not function
- B. Because the tray will break
- C. Because the tray will get pushed out
- D. Because the cables in the tray will get in the way
正解：C
解説：
Why Secure One End of the PCIe Tray First?
* TheSupermicro MI300X chassis is designed for modular tray installation, meaningsecuring one end firstensures:
* Proper alignment of PCIe slots and connectors
* Stable mountingto prevent unwanted movement
* Prevention of unnecessary strain on installed expansion cards
What Happens If Both Ends Are Handled at the Same Time?
* ThePCIe tray may shift out of alignment, making it difficult to properly install other components.
* Misalignment can cause:
* PCIe devices to not seat properly
* Power or data cables to be obstructed
* Increased risk of mechanical damage during reinstallation
Step-by-Step Correct Installation Process:
#Step 1:Align the PCIe tray with its designated mounting slots.#Step 2:Secure screws onone end firstto hold the tray in place.#Step 3:Adjust the other end and ensureproper seatingbefore fully tightening all screws.# Step 4:Reconnect all PCIe cables and verify system connectivity.
Why Other Options Are Incorrect?
* B (Cables getting in the way)# While cable management is important, the main issue istray movement
, not cable obstruction.
* C (Tray will not function)# The tray will functiononce properly seated, butincorrect installation can lead to PCIe misalignment.
* D (Tray will break)# The tray is designed for durability; it will not break unlessexcessive force is applied.
Official Documentation Reference:
* Supermicro AS-8125GS-TNMR2 Service Guideconfirms thattrays must be secured at one end first to ensure proper alignment.
質問 # 18
After removing the screws from the midplane bracket, what cables must be removed?(Choose 2 answers.)
- A. Flat panel/ribbon cable
- B. MCIO cable
- C. Power cable
- D. SATA cable
正解：A、B
解説：
Themidplane bracketinSupermicro MI300X GPU systemsconnects multiple crucial components, including storage, PCIe devices, and power distribution systems.
Why must the MCIO and Flat Panel/Ribbon cables be removed?
* MCIO Cable (Option B)#
* MCIO (Multi-lane Cable I/O)cables are responsible forhigh-speed NVMe communication between the motherboard and storage components.
* These cables must bedisconnected before midplane removal, asforcing them out without removal can cause connector damage.
* Flat Panel/Ribbon Cable (Option C)#
* Theflat panel/ribbon cableis used forsystem communication, front panel connectivity, or sensor data transmission.
* If not removed, it can be torn or pinched, leading tomalfunctioning front panel indicators, buttons, or management controllers.
Incorrect Answers Explained:
* A (Power cable)# Power cables are usuallysecured independentlyand arenot directly attached to the midplane bracket. Removing them isnot a required stepfor midplane bracket removal.
* D (SATA cable)# SATA cables arefor legacy storage systemsanddo not need to be disconnected unless working on SATA-specific backplanes.
Official Documentation Reference:
* SupermicroService ManualforAS-8125GS-TNMR2explicitly states thatMCIO cables and ribbon cables must be removed before handling the midplane bracketto preventsystem damage.
質問 # 19
Which two situations could occur if you forcefully shift the release lever without first unlocking the red lock?(Choose 2 answers.)
- A. All the answers are correct.
- B. The power supply unit can no longer be secured into the tray.
- C. The power supply unit will fail.
- D. You could permanently damage the lock on the power supply unit.
正解：C、D
解説：
ForSupermicro MI300X GPU systems,removing the power supply unit (PSU) improperlycan lead to serious issues.
* Why the red lock exists?
* Thered locking mechanismensures that thePSU is properly securedin the system.
* Before disengaging the PSU, thered lock must first be unlockedto avoid damage.
* If you forcefully shift the release lever without unlocking the red lock:
* B: The power supply unit will fail# If the PSU is removed improperly, it can causeinternal damageto power connectors, resulting in PSUfailure or improper functioning.
* C: You could permanently damage the lock on the power supply unit# Thelocking mechanismis designed for smooth disengagement. Forcefully shifting the lever canbreak or warpthe lock, making itimpossible to secure the PSU back in place.
* Incorrect Answers Explained:
* A (All answers are correct)# This is incorrect becausenot all answers are valid.
* D (The PSU can no longer be secured into the tray)# This happensonly if the lock is damaged
, which is covered underoption C.
Supermicro's official documentation clearly statesthatunlocking the red lock firstis a critical step before removing or replacing the PSU.
質問 # 20
What equipment is required in order to remove the heatsink from the motherboard tray?
- A. PH2 Phillips screwdriver
- B. T40 Torx bit
- C. T20 Torx bit
- D. T30 Torx bit
正解：D
解説：
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 heatsink without damaging the motherboard.
質問 # 21
Once you remove the midplane lid from the AS-8125GS-TNMR2 system, how many total screws must be removed from the sides of the chassis in order to remove the midplane bracket?
- A. 2 screws total (1 on each side of the chassis)
- B. 8 screws total (4 on each side of the chassis)
- C. 4 screws total (2 on each side of the chassis)
- D. 6 screws total (3 on each side of the chassis)
正解：C
解説：
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.
質問 # 22
To disengage a PCIe, motherboard, or GPU tray on the AS-8125GS-TNMR2 system, loosen the screws on either side of the tray, then slowly pull the tray out to disengage it. True or False?
- A. False
- B. True
正解：B
解説：
Why Must the Screws Be Loosened First?
* ThePCIe, motherboard, and GPU trays in Supermicro MI300X systemsaresecured by screws on both sidesto ensure:
* Structural stability
* Vibration resistance
* Secure connection of PCIe lanes and data paths
Proper Tray Removal Process:
#Step 1:Identify the tray to be removed (PCIe, motherboard, or GPU).#Step 2:Loosen screws on both sides to release tension on the tray.#Step 3:Slowly and evenlypull the tray outto avoid damaging connectors.#Step
4:Support the tray from the bottomwhile sliding it out to prevent bending.
Why This Method Is Important?
* Preventing Connector Damage# Pulling the tray without loosening screwscould damage PCIe connectorsor misalign the board.
* Avoiding Strain on Other Components# A stuck traycould put pressure on adjacent cables and connectors.
* Ensuring a Safe Removal# The slow and controlled movementreduces the risk of accidentally dropping or flexing the tray.
Why False Is Incorrect?
* IfFalse were correct, it would suggest that the tray can be removedwithout loosening screws, which is not possibledue to the secure mounting system.
Official Documentation Reference:
* Supermicro AS-8125GS-TNMR2 Hardware Maintenance Guideconfirms thatloosening screws and carefully pulling the tray out is the correct disengagement procedure.
質問 # 23
Exhibit:
Where are the 2 screws located before you can remove the air shroud?
- A. On both sides of the motherboard tray
- B. On both sides of the PCIe tray
- C. On both sides of the GPU tray
- D. On top of the motherboard tray
正解：A
解説：
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.
質問 # 24
Before disconnecting the cables from the NVMe backplane, what precaution should be taken?
- A. Randomly disconnect cables and reconnect them later.
- B. Map the cables so that you can reconnect them to the proper port location later on.
- C. Shake the system to loosen cables before disconnecting them.
- D. Disconnect the power supply first.
正解：B
解説：
Importance of Mapping Cables Before Disconnection
TheNVMe backplaneinSupermicro MI300X systemsuseshigh-speed PCIe lanesandpower distribution linesthat must beproperly mapped before disconnection.
Why Should Cables Be Mapped?
* Prevents misconnection during reassembly
* The system usesmultiple identical-looking cables(MCIO, NVMe, and power cables).
* Misplacing a cable in the wrong portcan causeboot failures, drive detection issues, and system instability.
* Reduces downtime for troubleshooting
* Without a mapped diagram or a picture, technicians may spendhours debugging misconnected cables, leading todelays in system restoration.
* Ensures proper airflow and cable management
* Incorrectly routed cablescanblock airflow, leading tooverheating and thermal throttling of GPUs or storage devices.
Correct Process for Cable Mapping
* Take high-resolution picturesbefore disconnecting cables.
* Label each cable and its corresponding portusing numbered stickers or colored tags.
* Create a simple mapping diagramshowing which cable connects to which port.
* Double-check the mapping before removal.
Why Other Options Are Incorrect?
* B (Disconnect the power supply first)# While powering down is important,mapping cables is the primary precaution before disconnection.
* C (Randomly disconnect cables)# Leads to confusion and potential system failures due to incorrect reconnections.
* D (Shake the system to loosen cables)#NEVER shake a server, as this can damage internal components and misalign connectors.
Official Documentation Reference:
* Supermicro NVMe Installation Guidestates thatproper cable mapping is required before NVMe backplane disconnectionto avoid misplacement.
質問 # 25
Why is there a yellow warning label on the flat panel/ribbon cable?
- A. To warn you that you can optionally remove the flat panel cable before removing the midplane from the chassis or you will damage the cable.
- B. To warn you that the cable is hot.
- C. To warn you that you must remove the flat panel cable after removing the midplane from the chassis or you will damage the cable.
- D. To warn you that you must remove the flat panel/ribbon cable before removing the midplane from the chassis or you will damage the cable.
正解：D
質問 # 26
Before you can remove the NVMe backplane (BPN-NVME5-HS219N-S24) from the motherboard tray, what should you do with the hard drives in the system?
- A. Disengage the power supply units (PSUs)
- B. Disengage (but don't remove) all the drives
- C. Disengage the field engineer
- D. Disengage the fans
正解：B
解説：
Before removing theNVMe backplanein aSupermicro MI300X GPU system,all NVMe drives must be disengaged but not fully removed.
Why is this necessary?
* Ensures safe backplane removal
* NVMe drives are directly connected to the backplane viaMCIO or U.2 connectors.
* Keeping them engaged couldput stress on the connectors, causing damage.
* Prevents accidental disconnects
* Removing the drives completely isnot necessary, butdisengaging them ensures they do not obstruct removal.
* Avoids power damage
* If the drives remain engaged during backplane removal, they may still haveresidual power, which can causeconnector damage or electrical failure.
Why other options are incorrect?
* B (Disengage PSUs)# While power should be off,removing PSUs is not required for NVMe backplane removal.
* C (Disengage fans)# Fans are independent components anddo not interfere with the NVMe backplane.
* D (Disengage the field engineer)# Not a valid answer; field engineers are not system components.
Official Documentation Reference:
* Supermicro NVMe Storage Disassembly Guiderecommendsdisengaging NVMe drives but not fully removing thembefore backplane removal.
質問 # 27
Before reinstalling the motherboard tray, what critical step should be taken to ensure proper installation?
- A. Screw in the motherboard tray at random points before aligning it
- B. Align the motherboard tray with the grooves in the chassis
- C. Shake the tray to confirm it fits properly
- D. Tilt the motherboard tray at an angle before placing it
正解：B
解説：
Why Must the Motherboard Tray Be Aligned With the Grooves?
* TheSupermicro MI300X chassisis designed withbuilt-in alignment groovesthat helpprecisely position the motherboard tray.
* If the tray is notaligned properly:
* ThePCIe slots and mounting points will not line up correctly.
* Thebackplane connections may be misaligned, leading to system boot errors.
* Improper installation can block airflow, leading to potential overheating issues.
Step-by-Step Proper Reinstallation Process:
#Step 1:Identify thealignment grooveson the chassis.#Step 2:Slowly slide the motherboard tray into place, ensuring it follows the grooves.#Step 3:Verify that the tray sitsflushwith the chassis.#Step 4:Secure the tray with screws only after confirming proper alignment.
Why Other Options Are Incorrect?
* B (Shake the tray to confirm fit)# Shaking the traycan loosen connectors and potentially damage components.
* C (Screw in randomly before aligning)# If screws are installedbefore alignment, it can causeuneven seating and difficulty in securing other components.
* D (Tilt the motherboard tray at an angle)# The tray should be insertedstraight into the grooves, not at an angle.
Official Documentation Reference:
* Supermicro AS-8125GS-TNMR2 Installation Guideconfirms thatthe motherboard tray must be aligned with the chassis grooves before securing it.
質問 # 28
Which cables need to be reconnected after installing the NVMe backplane?
- A. Only the SAS Cable
- B. Only the i2C Cable
- C. Only the Power Cable
- D. i2C Cable, SAS Cable, Power Cable
正解：D
解説：
NVMe Backplane Connection Requirements in Supermicro MI300X Systems
Afterinstalling the NVMe backplane, the following cablesmust be reconnectedfor proper system functionality:
* i2C Cable(Inter-Integrated Circuit Cable)
* Responsible fordata communication, sensor monitoring, and system management functions.
* Ensures thatstorage devices are properly detectedby the motherboard.
* SAS Cable(Serial Attached SCSI)
* Used forhigh-speed storage connectivityin hybrid NVMe/SAS systems.
* Ensuresdata integrity and fast data transfers between SSDs and the system controller.
* Power Cable
* Supplies power to the NVMe backplaneandconnected drives.
* Without this,NVMe drives will not receive power and will not be detected by the system.
Why Other Options Are Incorrect?
* B (Only the SAS Cable)# While the SAS cable is important,the power cable and i2C cable are also required.
* C (Only the i2C Cable)# The i2C cable isnot sufficient by itself; the NVMe backplaneneeds both power and data connections.
* D (Only the Power Cable)# Power is needed, butdata connectivity through SAS and i2C is essential for full functionality.
Official Documentation Reference:
* Supermicro NVMe Storage System Guideconfirms thati2C, SAS, and power cables must all be reconnected after NVMe backplane installation.
質問 # 29
Exhibit:
To remove the midplane lid on the AS-8125GS-TNMR2 system, use your fingers to push in on the two handles toward the PCIe tray, then slowly lift the midplane lid up and out of the chassis at an angle.
True or False?
- A. False
- B. True
正解：B
解説：
* Themidplane lid removal processis designed to betool-freeand follows aspecific sequence to avoid damage.
* Thecorrect methodis:
* Push in on the two handleslocated near thePCIe tray.
* Slowly lift the midplane lid up, ensuring it does not catch on other components.
* Remove the lid at an angleto avoid damaging adjacent connectors.
Why this method is used?
* Theangled removalhelpsavoid contact with fragile connectorson the midplane.
* Forcing the lid straight upcould damage PCIe slots or motherboard connectors.
Official Documentation Reference:
* Supermicro AS-8125GS-TNMR2 Disassembly Manualdetails thecorrect method for removing the midplane lid.
質問 # 30
Exhibit:
What is the proper way to remove the backplane from the motherboard tray?
- A. Use both hands to tilt the top of the backplane towards you and lift it up and out of the motherboard tray.
- B. Ask a data center technician to remove it for you.
- C. Hold the start button and press left and right buttons to get more lives.
- D. Use one hand to grab one side of the motherboard tray and rip the backplane out.
正解：A
解説：
Thecorrect and safemethod to remove the backplane from the motherboard tray is to useboth hands, gently tilting thetop of the backplanetowards yourself while carefullylifting it up and outof the motherboard tray.
This ensures that:
* No undue forceis applied to the connectors or PCB.
* No components or cablesare unintentionally damaged.
* Proper handling of static-sensitive componentsis maintained.
Removing the backplane improperly can result in:
* Connector damageto the motherboard or backplane.
* PCB warping, which could lead to future malfunctions.
* Potential data center downtimedue to component failure.
According toSupermicro's official documentation, this method aligns withindustry best practicesand recommended service proceduresforSupermicro MI300X GPU systems.
質問 # 31
Exhibit:
How many screws need to be removed from the support bar located at the rear of the motherboard tray?
- A. 6 screws (1 on the left side and 5 on the right side of the tray)
- B. 24 screws (6 on the left side and 18 on the right side of the tray)
- C. 12 screws (2 on the left side and 10 on the right side of the tray)
- D. 6 screws (3 on the left side and 3 on the right side of the tray)
正解：D
解説：
Why Does the Support Bar Have 6 Screws?
* Thesupport bar at the rear of the motherboard trayis designed to:
* Provide additional structural stability
* Prevent vibration-related failures
* Ensure proper alignment of PCIe slots and backplane connectors
* It is secured using6 screws, arranged as:
* 3 screws on the left side
* 3 screws on the right side
Correct Removal Procedure:
#Step 1:Identify thesix screws securing the support bar.#Step 2:Loosen themevenly from both sidesto prevent stress on the chassis.#Step 3:Carefully remove the support bar without twisting it.
Why Other Options Are Incorrect?
* B (24 screws)# Excessively high number; no component in this section has 24 screws.
* C (12 screws)# Incorrect count; only6 screwsare present.
* D (6 screws but uneven distribution)# There are3 screws per side, not 1 on one side and 5 on the other.
Official Documentation Reference:
* Supermicro AS-8125GS-TNMR2 Disassembly Guideconfirmsthe support bar is secured with 6 screws (3 on each side).
質問 # 32
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最新のSMI300XS実際の無料試験問題は更新された44問あります：https://www.passtest.jp/Supermicro/SMI300XS-shiken.html
無料SMI300XS試験ブレーン問題集認定ガイド問題と解答：https://drive.google.com/open?id=1-cj3nWQMkZYME4OBpZcp12CZxktHA4Hr