Pass the Supermicro Liquid Cooled Servers SDLCSA Questions and answers with CertsForce

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.

The AOM module (AOM-GP401-PCIE) in Supermicro systems is a PCIe-based add-on module, typically for expansion cards like NICs (Network Interface Cards). The AOC NIC card (Add-On Card, Network Interface Card) is the most likely connection, as Supermicro’s AOM modules (e.g., in SYS-420 series) are designed to interface with AOC cards for networking in DLC systems. A (AOM card) is vague and not a standard term, while B and D (credit/debit cards) are irrelevant. Supermicro’s DLC solutions integrate high-speed networking, making C the verified choice.

References: Supermicro AOM module specs, DLC system networking components.

In Supermicro systems, the air shroud aligns with the motherboard tray via tabs and slots. The correct feature is3 tabs on the front of the air shroud aligning with 3 slots on top of the fan board, a common design (e.g., SYS-420GP-TNAR) for precise placement over fans and CPUs. B (4 tabs) and C (2 tabs) deviate from standard counts, while D (PCIe board) misplaces the alignment. Supermicro’s DLC hybrid cooling ensures shroud accuracy, making A correct.References:Supermicro air shroud installation guides, DLC system cooling alignment.

The side bracket in the SYS-421GE-TNHR2-LCC likely houses networking or management add-ons. TheAOM-PCIe card(e.g., AOM-GP401-PCIE module) andAOC NIC card(networkinterface card) are common components in Supermicro’s DLC systems, enhancing connectivity (e.g., high-speed NICs for AI workloads). A (GPU/PCIe) mixes unrelated categories, C pairs an AOM with a GPU (less likely), and D (AOC/PCIe) lacks specificity. B aligns with Supermicro’s DLC networking focus, making it correct.References:Supermicro add-on card specs, DLC system networking components.

The BMC (Baseboard Management Controller) cable and IO Module in Supermicro systems like the SYS-421GE-TNHR2-LCC are often tied to add-on cards (AOC) within the PCIe tray. The AOC cage (likely an Add-On Card cage) must be removed first to access these components, as it houses cards and cables interfacing with the BMC. Supermicro’s design (e.g., SYS-420 series) places AOC cages as sub-assemblies within the PCIe tray, requiring removal before deeper access. A (AOM cage) may be a typo or misidentification, B (BMC cage) isn’t standard terminology here, and C (PCIe tray) is too broad since it’s the parent assembly. D fits Supermicro’s DLC service hierarchy, making it correct.

References: Supermicro PCIe tray sub-assembly guides, DLC system component access.

The fan board in Supermicro systems, including the SYS-421GE-TNHR2-LCC with DLC, manages cooling (even in hybrid air/liquid setups). The removal process, per Supermicro’s service manuals, involves:

Disconnect the power supply from all the fans: This ensures safety and prevents damage, a critical step in DLC systems where fans may supplement liquid cooling.

Pull up on the blue levers on each side of the fan board to unlock it: Blue levers are a common Supermicro design feature for releasing components securely.

Pull the fan board straight up and out of the tray: Once unlocked, the board is lifted free.Option B includes all necessary steps. A skips disconnection and unlocking, C omits the levers, and D misses power disconnection, risking damage. Supermicro’s DLC solutionsemphasize safe maintenance, supporting B as the correct procedure.References:Supermicro motherboard tray service guides, DLC system maintenance protocols.

Replacing a PSU in Supermicro’s SYS-421GE-TNHR2-LCC follows a detailed, safety-focused process:

Lift the red lock to unlock the release lever: Red is a common Supermicro color for PSU locks.

Lift the release lever and use it to pull out the failed PSU: Standard hot-swap mechanism.

Replace the failed PSU with a new one: Swap the unit.

Ensure the gold connector pins are on the top: Correct orientation for connection.

Push the new PSU into the tray: Slide it in fully.

Push the release lever down and in until it clicks: Locks the PSU.

Ensure the red lock is locked: Confirms security.

Option B covers all steps comprehensively, aligning with Supermicro’s DLC system PSU replacement (e.g., SYS-420 manuals). A is incomplete, C reverses steps, and D skips locking, making B correct.

References: Supermicro PSU replacement guides, DLC system power protocols.

The AOM (Add-On Module) cage in the SYS-421GE-TNHR2-LCC is secured with2 screws on the top and 2 on the side, a balanced approach in Supermicro’s modular designs (e.g., SYS-420GP-TNAR). This ensures stability and accessibility in DLC systems. A and B skew placement, while C (all top) ignores side support. D matches Supermicro’s chassis engineering, making it correct.References:Supermicro AOM cage specs, DLC system structural design.

The SYS-421GE-TNHR2-LCC, a DLC-enabled server, focuses break/fix training on key physical components per Supermicro’s service scope:

PCIe Tray: Houses GPUs/NICs, critical for DLC cooling (e.g., cold plates on GPUs).

Motherboard Tray: Contains CPUs and core systems, also liquid-cooled in DLC setups.

External Chassis: Encloses all components, requiring access for repairs.Bluetooth (C) is a connectivity feature, not a physical component for break/fix in this context, and Supermicro’s DLC documentation (e.g., rack-scale solutions) emphasizes trays and chassis. Thus, A, B, and D are the focus.References:Supermicro DLC solution breakdowns, SYS-420 series service guides.