Lenovo IdeaPad Slim 5i Gen 9 SSD Not Detected Fix
An SSD not detected in the Lenovo IdeaPad Slim 5i Gen 9 appears as a blank screen at boot (no OS), a Windows recovery prompt, or the drive missing in Disk Management. On this model, the M.2 NVMe SSD connects via PCIe 4.0 x4 and may not be detected if the BIOS NVMe mode or the Intel VMD controller is misconfigured after a BIOS update.
Check BIOS storage mode settings Check first
Restart, press F2 to enter BIOS Setup. Go to Configuration → Storage or Security → Intel VMD. Confirm the M.2 SSD slot is Enabled and the SATA/NVMe mode is set correctly. On some IdeaPad Slim 5i Gen 9 units, a BIOS reset may change the Intel VMD controller setting, causing the SSD to become invisible to Windows without changing it in hardware.
Reseat the M.2 NVMe SSD
Power off, disconnect the adapter, and open the bottom panel of the IdeaPad Slim 5i Gen 9. Remove the M.2 screw holding the SSD. Carefully remove the SSD and reinsert it at the same 30° angle until it clicks into the connector. Replace the screw and reassemble. A loose M.2 connection due to vibration or shipping handling can cause intermittent or permanent SSD non-detection on this model.
Update the BIOS
Go to Lenovo Support and install the latest BIOS for the IdeaPad Slim 5i Gen 9. BIOS updates for this model include PCIe 4.0 NVMe enumeration fixes that resolve SSD non-detection caused by PCIe speed negotiation failures during BIOS POST. This is particularly important after a Windows Update that also updated the Intel RST or VMD driver simultaneously.
Update the Intel VMD driver
Go to Lenovo Support, find IdeaPad Slim 5i Gen 9, and download the Intel VMD Controller Driver. The Intel Volume Management Device (VMD) controller manages the M.2 NVMe slots on the Core Ultra 3 100U platform. An outdated VMD driver can cause the SSD to be detected at BIOS level but not enumerated correctly by Windows.
Test the SSD in another laptop
If available, remove the M.2 SSD from the IdeaPad Slim 5i Gen 9 and insert it into another compatible M.2 PCIe 4.0 slot. If the SSD is detected in the other laptop, the issue is with the IdeaPad Slim 5i Gen 9 M.2 slot, BIOS, or VMD driver. If the SSD is not detected anywhere, the SSD itself has failed and requires replacement.
Common questions
How many M.2 slots does the IdeaPad Slim 5i Gen 9 have?
The IdeaPad Slim 5i Gen 9 has one M.2 2242 or 2280 NVMe PCIe 4.0 x4 slot. No secondary M.2 slot is available for SSD expansion without replacing the primary drive.
Can I upgrade the SSD in the IdeaPad Slim 5i Gen 9?
Yes. The M.2 slot is user-accessible after removing the bottom panel. Use an M.2 2280 PCIe 4.0 NVMe SSD for maximum performance. Ensure the replacement SSD is cloned from the original or a fresh Windows install is performed after the upgrade.
What is Intel VMD and why does it matter?
Intel VMD (Volume Management Device) is a controller that manages NVMe drives on Intel platforms. If VMD is enabled in BIOS, the Intel VMD driver must be installed in Windows for the drive to appear. Disabling VMD in BIOS removes the driver dependency but may prevent RAID configuration.
Does SSD non-detection mean data is lost?
Not necessarily. If the SSD is not detected due to a BIOS setting or loose connection, data is intact. Once the SSD is properly detected again, all data is accessible. Only when the SSD has a hardware failure is data potentially at risk.
Faizal, Melaka: “My IdeaPad Slim 5i Gen 9 stopped booting and showed no OS found. The BIOS had reset the Intel VMD setting. Toggling it back to the correct state fixed detection immediately and the SSD with all my data was fully accessible again.”
Frequently Asked Questions
What causes the Lenovo IdeaPad Slim 5i Gen 9 SSD to suddenly stop being detected?
The most common causes are a BIOS update resetting the Intel VMD configuration, a Windows Update modifying the Intel RST driver removing the VMD interface, or physical loosening of the M.2 connection. A less common cause is SSD firmware failure triggered by a power interruption during a write operation.
Can I recover data from an SSD that is not detected in the IdeaPad Slim 5i Gen 9?
If the SSD is not detected due to BIOS settings, reseating, or VMD driver issues, your data is intact once the SSD is detected again. If the SSD has a hardware failure confirmed by a diagnostic tool, professional data recovery services may be able to recover data depending on the nature of the failure. SSD encryption (BitLocker) may prevent recovery without the encryption key.
Is the SSD in the Lenovo IdeaPad Slim 5i Gen 9 soldered or removable?
The SSD is a removable M.2 module, not soldered. It can be removed and replaced by opening the bottom panel and removing the retention screw. Some entry-level IdeaPad configurations ship with a smaller M.2 2242 form factor SSD; check your unit to ensure you purchase a replacement in the correct form factor.
Will disabling Intel VMD in the BIOS make the SSD detectable without the VMD driver?
Yes. Disabling Intel VMD in the BIOS allows the SSD to appear as a standard PCIe NVMe device without requiring the Intel VMD driver. However, if Windows was installed with VMD enabled, disabling it will cause a BSOD on boot. Only disable VMD before a fresh Windows installation, or use the Microsoft-provided procedure for switching between VMD and non-VMD mode on an existing installation.
Ryan holds a Computer Science degree and has over 20 years of hands-on experience with PC hardware, software, and driver troubleshooting. He is the author behind softwaredriverdownload.com, where he helps everyday users fix driver issues quickly and accurately. Ryan has personally tested most of the fixes on this site across a range of Windows 10 and Windows 11 machines.
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