Recent NVMe SSD no longer appears in boot detection lists
Recent NVMe SSD no longer appears in boot detection lists
Hello everyone, I've been running this SSD for more than a year without any problems. Yesterday I added a new GPU (6800 XT), which appears to be causing temperature issues. After adjusting the voltage and fan curves, I powered down the PC briefly. When I restarted it, the NVMe SSD stopped showing up as a boot drive. At that point, I tried entering BIOS to turn on Smart Access Memory, enabling "Above 4G Decoding" and setting "Re-Size BAR Support" to Auto. I’m unsure if these changes might affect the SSD, but unfortunately I didn’t verify its detection beforehand. Some sources suggest tweaking "CSM Support" after enabling SAM, but I wasn’t confident in those sites, so I skipped it. The NVMe drive is still visible on the motherboard under the peripherals section, passed a self-test, and works fine. Other details: no other drives are connected, only one NVMe slot available, and the drive sits directly above the overheating GPU (around 110°C). I tested switching to an older GPU, but it still isn’t detected as a boot drive. My specs are: CPU – AMD Ryzen 5 5600G @ 3.9 GHz, 6 cores; cooler – ID-COOLING ZOOMFLOW X 62 CFM; motherboard – Gigabyte B450M DS3H with Gigabyte B450M DS3H M.2; RAM – Corsair Vengeance LPX 32 GB; SSD – Western Digital Blue SN570 1 TB M.2-2280 PCIe 3.0 X4; GPU – Gigabyte GV-R68XT-16GC-B Radeon RX 6800 XT; case – Xigmatek Master X ATX mid tower; power supply – Gigabyte P750GM 750W, 80+ Gold certified; fans – ID-COOLING TF-12025-ARGB, 68.2 CFM, 6 fans total).
Please let me know if you have any additional insights to share, and thank you for your support!
Compatibility Support Module (CSM) enables booting older operating systems. Turn it off if needed. You may have set up Windows 10 with an MBR partition (traditional setup). For EFI-based installation, you should reinstall Windows and disable CSM, though using MBR is acceptable temporarily but will limit features like fast boot and secure boot. Consider a full reformat/reinstall, particularly if your storage space is limited.