220-1101 Hardware Practice Question
A technician is upgrading a desktop PC with a new SATA SSD. After installing the SSD and connecting the SATA data cable to the motherboard and the power cable from the PSU, the system boots but the SSD is not detected in the BIOS. The technician has verified the SATA cable is firmly connected at both ends and the drive is listed in the motherboard's manual as compatible. Which of the following should the technician check NEXT?
⚠ Common exam trap
The trap here is that candidates often jump to hardware replacement (cable, power, or firmware) without first checking the simple BIOS configuration setting that directly controls port activation.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable the SATA port in the BIOS settings.
The SSD is not detected in the BIOS despite being properly connected and compatible. The most likely cause is that the SATA port to which the drive is connected is disabled in the BIOS settings. Many motherboards allow individual SATA ports to be turned off, and checking this setting is a standard first troubleshooting step before replacing hardware or updating firmware.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Replace the SATA data cable with a known-good one.
Why it's wrong here
Although a defective or loose SATA data cable can prevent a drive from being recognized, the technician has already confirmed the cable is firmly seated. Swapping in a known-good cable is a reasonable low-cost hardware test, but it is an indirect check that does not address the root cause if the SATA port itself is disabled in the BIOS. Because the BIOS is responsible for initializing and enabling each SATA port, verifying that setting is the more immediate and logically prioritized step.
- ✓
Enable the SATA port in the BIOS settings.
Why this is correct
A SATA port can be disabled in the UEFI/BIOS, which makes the drive invisible to the operating system even with correct power and data connections. To enable it, enter the BIOS during POST, navigate to the storage or SATA configuration menu, ensure the port or controller is set to enabled (and often the mode is AHCI), then save and reboot. This is the standard first troubleshooting step after confirming physical connections because a disabled port will prevent the SSD from ever appearing in the boot order or OS.
- ✗
Update the motherboard's firmware.
Why it's wrong here
Flashing the motherboard firmware is a higher-risk operation that should only be done when a specific compatibility issue or bug is documented. Since this SSD is listed as compatible with the board, a BIOS update would not be the initial response to a detection problem. Moreover, an unsuccessful firmware update can corrupt the BIOS and leave the system unbootable, so it is considered a last resort after checking cables, power, and BIOS settings.
- ✗
Connect the SSD to a different SATA power cable from the PSU.
Why it's wrong here
If the power cable were faulty, the drive might not spin up. However, SSDs have low power requirements and a solid power connection is likely. This check is secondary to verifying the BIOS port setting.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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