Learn why checking BIOS settings for NVMe support is the best troubleshooting step when a desktop PC does not detect a new NVMe SSD, as required for the CompTIA A+ Core 1 220-1101 exam. Discover BIOS configuration tips and hardware checks to ensure proper NVMe SSD recognition.
Table of Contents
Question
A user complains that their desktop PC does not detect their new NVMe SSD. What is the best troubleshooting step?
A. Check BIOS settings for NVMe support
B. Replace the motherboard
C. Reinstall the operating system
D. Update the USB drivers
E. Replace the network card
Answer
A. Check BIOS settings for NVMe support
Explanation
Some BIOS configurations may require enabling NVMe support or changing the boot mode.
When a new NVMe SSD is not detected by a desktop PC, the first and most effective troubleshooting step is to verify and configure BIOS settings to ensure NVMe support is enabled. Many motherboards require explicit enabling of NVMe or M.2 slots within the BIOS, as well as disabling legacy features like CSM (Compatibility Support Module) and Secure Boot to allow the system to recognize and boot from NVMe drives.
Key BIOS settings to check:
- Enable NVMe or M.2 slot: Some BIOS versions have options under Advanced or Storage Configuration to enable or disable M.2/NVMe support.
- Disable CSM: Disabling Compatibility Support Module forces the system to use UEFI boot mode, which is necessary for NVMe drives.
- Adjust Secure Boot: Temporarily disabling Secure Boot or setting it to “Other OS” can help the BIOS detect the NVMe SSD.
- Set SATA mode to AHCI: Ensures compatibility with NVMe drives and better performance.
- Update BIOS: An outdated BIOS may lack proper NVMe support, so updating to the latest firmware is recommended.
Additional hardware checks:
- Re-seat the NVMe SSD: Ensure the SSD is properly inserted into the M.2 slot and secured with a mounting screw.
- Remove other drives: Disconnect other SATA drives temporarily to avoid lane sharing conflicts that can disable M.2 slots.
- Test SSD on another system: To rule out a faulty SSD.
These steps are supported by manufacturer documentation and community troubleshooting guides. Proper BIOS configuration is crucial because NVMe SSDs rely on UEFI and PCIe lanes, which require specific motherboard support and settings. Addressing BIOS and hardware setup first avoids unnecessary OS reinstallations or hardware replacements.
Checking and configuring BIOS settings for NVMe support is the best initial troubleshooting step when a desktop PC does not detect a new NVMe SSD. This ensures the system recognizes the drive and can boot from it successfully.
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