The flashing green and orange LEDs on the NIC indicate connection issues. The technician should first check for loose connections, pinched bends, and physical damage, which are the most common causes of connection problems. References: CompTIA A+ Certification Exam Guide, Ninth Edition, Chapter 14 The symptoms-flashing green and orange LEDs on the workstation's NIC-suggest a connectivity issue. In networking troubleshooting, flashing LEDs typically indicate activity (green for link/activity, orange for speed or errors, depending on the NIC), but the combination and context imply an unstable or degraded connection. The cable length of 275ft (84m) is within the maximum distance for Cat 5 UTP (100 meters or
328 feet), so length alone isn't the immediate problem. However, physical issues like loose connections, pinched bends, or damage could degrade signal quality, causing intermittent or erroneous data transmission.
The CompTIA A+ Core 1 Study Guide emphasizes a systematic troubleshooting approach, starting with the simplest and most common causes before escalating to more complex solutions. Checking the cable's physical integrity-ensuring proper termination, no sharp bends, and no cuts or interference-is a fundamental first step in network troubleshooting. This aligns with Objective 5.5 ("Given a scenario, troubleshoot problems related to motherboards, RAM, CPU, and power") and Objective 5.2 ("Given a scenario, troubleshoot and diagnose problems with storage drives and RAID arrays"), which extend to networking in practice.
* Option A (Check for loose connections, pinched bends, and physical damage): This is the least invasive, most immediate step to rule out common cabling issues, as recommended by CompTIA's methodology.
* Option B (Install a powered hub halfway): Adding a hub or repeater could extend signal strength, but the length is within spec, and this assumes a distance issue without evidence. It's not the first step.
* Option C (Replace with Cat 5 STP): Shielded twisted pair reduces interference, but there's no indication of EMI yet, and replacing the cable is premature without basic checks.
* Option D (Upgrade to multimode fiber): Fiber eliminates distance and interference issues but is a costly, last-resort solution, not a first step.
The study guide prioritizes physical inspection and basic diagnostics before hardware replacements or upgrades, making Option A the correct initial action.
Exact Extracts from the Study Guide:
From The Official CompTIA A+ Core 1 Study Guide (220-1101):
* Section 2.6, Networking Hardware:
* "Twisted Pair Cabling: The maximum length of a twisted pair cable run (such as Cat 5, Cat 5e, or Cat 6) is 100 meters (328 feet). This includes both patch cables and the main run. Beyond this length, signal degradation (attenuation) becomes significant, and a repeater or switch is needed to boost the signal."
* Implication: At 275ft (84m), the cable is within spec, so length isn't the primary concern.
* Section 5.4, Troubleshooting Wired and Wireless Network Problems:
* "No connectivity or intermittent connectivity-Check the following: Ensure that all cables are securely connected at both ends (NIC and switch or wall jack). Inspect the cable for damage, such as cuts, crimps, or excessive bending, which can disrupt signal integrity... Verify that the cable length does not exceed the maximum specification for the cable type (e.g., 100 meters for twisted pair)."
* "LED indicators-Most NICs and switches have LED indicators to show link status and activity.
A solid green light typically indicates a good connection, while flashing may indicate activity.
Amber or orange lights can indicate speed (e.g., 10/100 Mbps vs. 1 Gbps) or errors, depending on the device."
* Section 5.4, Troubleshooting Methodology:
* "Identify the problem... Gather information... Establish a theory of probable cause... Test the theory to determine cause (e.g., check physical connections before replacing components)." These excerpts highlight that checking physical connections and cable condition is the first step when LEDs indicate potential issues, especially before assuming hardware failure or specification limits are exceeded.
Additional Reasoning:
* LED Behavior: Flashing green and orange LEDs vary by NIC manufacturer, but per the study guide, green flashing often means activity, and orange flashing could signal errors or a speed mismatch. This suggests a link is established but unstable, pointing to cabling issues.
* Cable Length: At 275ft, the run is well under 328ft, ruling out immediate need for a hub or fiber upgrade.
* Common Issues: Loose RJ45 connectors, pinched cables (exceeding bend radius), or physical damage are frequent causes of intermittent connectivity, easily checked first.
* Alternatives: Installing a hub (B) or replacing the cable (C, D) assumes a specific failure without evidence, violating CompTIA's step-by-step approach.
References:
The Official CompTIA A+ Core 1 Study Guide (220-1101):
Section 2.6: "Given a scenario, install and configure basic wired/wireless networks" (cable specs and limits).
Section 5.4: "Given a scenario, troubleshoot wired and wireless network problems" (diagnosing connectivity and LED issues).
CompTIA A+ Core 1 (220-1101) Exam Objectives:
Objective 2.6: Understand networking hardware and cable specifications.
Objective 5.4: Troubleshoot network connectivity, starting with physical layer checks.

three beeps and a black screen indicate a memory error of some sort123. This means that the RAM may not be properly installed or connected to the motherboard. Reseating the RAM means removing each stick and re-inserting it, making sure it clicks into place. This can sometimes solve the problem by ensuring a good contact between the RAM and the motherboard.
Replacing the power supply, reattaching the hard drive, or flashing the BIOS are unlikely to fix this issue, since they are not related to the memory error. The power supply provides power to the whole system, the hard drive stores data, and the BIOS is the firmware that controls the boot process. None of these components would cause three beeps and a black screen if they were faulty.

The technician should check the wattage and the form factor of the power supply to ensure it will support the upgraded workstation. These are the two most important criteria for choosing a compatible and adequate power supply.
Wattage: The wattage of a power supply is the maximum amount of power it can deliver to the components of the workstation. The wattage of the power supply should match or exceed the total power consumption of the components, especially the new graphics card, which is usually the most power-hungry part. If the power supply does not have enough wattage, it may cause instability, crashes, or damage to the workstation. To estimate the power consumption of the components, the technician can use a power supply calculator tool, such as the ones found in the web search results123. The technician should also add some headroom to the wattage, such as 20% to 50%, to account for peak power consumption, future upgrades, or power supply degradation.
Form factor: The form factor of a power supply is the physical size and shape of the unit. The form factor of the power supply should fit in the case of the workstation and match the mounting holes and screws. The most common form factor for desktop power supplies is ATX, which measures 150 x 86 x 140 mm. However, some older or smaller workstations may use different form factors, such as SFX, TFX, or FlexATX. The technician should check the specifications of the workstation case and the power supply to ensure they have the same form factor.
Other criteria, such as efficiency rating, heat dissipation, fan type, and modular cabling, are not essential for supporting the upgraded workstation, but they may affect the performance, noise, or aesthetics of the power supply. The efficiency rating is the percentage of input power that is converted to output power, and it indicates how much power is wasted as heat. The heat dissipation is the ability of the power supply to cool itself and prevent overheating. The fan type is the design and size of the fan that cools the power supply, and it affects the noise level and airflow of the unit. The modular cabling is the feature that allows the user to detach unused cables from the power supply, and it helps to reduce clutter and improve airflow inside the case.
References:
How to Choose the Right Power Supply for Your PC - Lifewire4
How to Choose a Power Supply: 7 Steps (with Pictures) - wikiHow5
How to pick the best PC power supply - PCWorld6
Power Supply Calculator - PSU Wattage Calculator | Newegg1
Power Supply Calculator | Cooler Master2
Power Supply Calculator - PSU Calculator | OuterVision3

The next step that the technician should do to troubleshoot the issue is C. Swap the power supply if it is inoperable.
A power supply is a device that converts the alternating current (AC) from the wall outlet into direct current (DC) that the computer components can use. A power supply is essential for the computer to boot and function properly. A faulty or inadequate power supply can cause various issues, such as no power, no display, random shutdowns, or beeping sounds.
In this scenario, the technician is trying to fix a computer that fails to boot even when all the RAM is removed. RAM stands for Random Access Memory, and it is a type of memory that stores data and instructions for the processor to access and process. RAM is also essential for the computer to boot and function properly. A faulty or incompatible RAM can cause various issues, such as no boot, no display, blue screen, or beeping sounds.
One of the basic troubleshooting techniques for a computer that fails to boot is to remove all the RAM modules and try to boot with one module at a time in different slots. This can help to identify if the problem is caused by a bad RAM module or a bad RAM slot. If the computer still fails to boot even when all the RAM is removed, it means that the problem is not related to the RAM, but to another component.
The next step that the technician should do is to swap the power supply if it is inoperable. This means that the technician should test the power supply with a multimeter or a power supply tester, and replace it with a known good one if it is faulty or insufficient. This can help to determine if the problem is caused by a bad power supply or a bad motherboard.
The other options are not the next steps that the technician should do, because they are less likely or less effective. Inspecting the motherboard for swollen capacitors (option A) may be helpful if the problem is caused by a damaged or defective motherboard, but it requires opening the computer case and visually examining the motherboard components. Replacing the CMOS battery (option B) may be necessary if the problem is caused by a low or dead CMOS battery, but it usually affects only the BIOS settings and not the boot process. Checking to see if the HDD power connectors are well seated (option D) may be useful if the problem is caused by a loose or faulty HDD connection, but it usually affects only the data access and not the boot process.
For more information about troubleshooting power supply and boot issues, you can refer to the following web search results: [How to Troubleshoot a Computer That Won't Turn On], [How to Test a Power Supply Using a Multimeter], [How to Fix a Computer That Shows No Sign of Power], [How to Troubleshoot Beep Codes].

NVMe (Non-Volatile Memory Express) is an interface protocol built especially for Solid State Drives (SSDs) to utilize the high-speed PCIe bus in computers. M.2 is a form factor that is commonly used for NVMe SSDs due to its compact size and direct connection to the PCIe interface, which is ideal for laptops. The 2.5" and
3.5" form factors are more commonly associated with SATA drives, and SD is a form factor used for removable flash memory cards, not for internal storage solutions like NVMe SSDs.
References:
* CompTIA A+ Core 1 Exam Objectives Section 3.3: Given a scenario, select and install storage devices.