引用自 larr：

Hey everyone, I’m running into a weird issue and could use some advice.

I picked up a Kingston NV3 NVMe SSD, but my B450 motherboard just won’t detect it. The drive doesn’t show up in BIOS or Windows. At first I thought it might be a bad slot or a bad drive, but here’s what I’ve done so far:
Tried the NV3 in both M.2 slots on the board
Updated the BIOS to the latest version
Set PCIe mode in BIOS to Gen3 (since B450 only supports PCIe 3.0)

Verified in Windows Disk Management (not showing up at all)

Reseated the drive, cleared CMOS, tested with/without other SATA drives

To rule out hardware failure, I tested another NVMe (GoodRAM PX600) in the same slot — it works perfectly. I also tested the Kingston NV3 in a different PC with a newer B850 chipset — and it works fine there too.

So the drive itself is good, the slot is good, but the NV3 and my B450 just don’t seem to play nicely together. But how is this possible? What can I do?

At this point I’m thinking the NV3 just isn’t compatible with my board, even though in theory it should downshift to PCIe 3.0, but then how the PX600 is working ( it was smooth from the start)

TL:DR: Kingston NV3 NVMe works fine in newer systems but won’t show up at all on my B450 board. Tried BIOS update, reseating, Gen3 mode, CMOS reset, etc. Other NVMe drives work in the slot

引用自 _I_：

what cpu?

does it show in teh 2nd m.2 slot?

引用自 Rumpelcrutchskin：

Safest bet with B450 boards is to get native PCIe 3.0 NVME instead of trying to scale down later gens. Sometimes they just don`t want to play nice.

引用自 Xuild：

引用自 larr：

Hey everyone, I’m running into a weird issue and could use some advice.

I picked up a Kingston NV3 NVMe SSD, but my B450 motherboard just won’t detect it. The drive doesn’t show up in BIOS or Windows. At first I thought it might be a bad slot or a bad drive, but here’s what I’ve done so far:
Tried the NV3 in both M.2 slots on the board
Updated the BIOS to the latest version
Set PCIe mode in BIOS to Gen3 (since B450 only supports PCIe 3.0)

Verified in Windows Disk Management (not showing up at all)

Reseated the drive, cleared CMOS, tested with/without other SATA drives

To rule out hardware failure, I tested another NVMe (GoodRAM PX600) in the same slot — it works perfectly. I also tested the Kingston NV3 in a different PC with a newer B850 chipset — and it works fine there too.

So the drive itself is good, the slot is good, but the NV3 and my B450 just don’t seem to play nicely together. But how is this possible? What can I do?

At this point I’m thinking the NV3 just isn’t compatible with my board, even though in theory it should downshift to PCIe 3.0, but then how the PX600 is working ( it was smooth from the start)

TL:DR: Kingston NV3 NVMe works fine in newer systems but won’t show up at all on my B450 board. Tried BIOS update, reseating, Gen3 mode, CMOS reset, etc. Other NVMe drives work in the slot

try to buy a cheap pcie to nvme adapter to test if its the board software or if the kingston just doesn't like the slot specifically due to it being outdated

also if that fails make sure to double check the adapter isnt broken and if you can afford it, buy another ssd with the same specs like some crappy silicon power

引用自 _I_：

do other nvme drives work in the slots?

引用自 _I_：

update bios

if that fails, the drive is not falling back to pci-e 3.0
try it on a usb nvme adapter

https://www.amazon.com/SEINIKAY-Enclosure-Tool-Free-Adapter-Expansion/dp/B0DT6LZ8BS

引用自 ChickenBalls：

the 5700X3D supports pcie4.0
and if I remember correctly the nv3 is also a pcie4 drive
maybe its time to upgrade your mobo and some of the newer GPUs only have x8 so on a B450 it would only run at pcie3 x8

引用自 larr：

引用自 ChickenBalls：

the 5700X3D supports pcie4.0
and if I remember correctly the nv3 is also a pcie4 drive
maybe its time to upgrade your mobo and some of the newer GPUs only have x8 so on a B450 it would only run at pcie3 x8

well if upgrading the mobo then to am5 but then I need to replace cpu + ram etc

引用自 ChickenBalls：

引用自 larr：

well if upgrading the mobo then to am5 but then I need to replace cpu + ram etc

uh B550 and X570 are AM4 and were released with Ryzen 5000 cpus
the 5700X3D is meant to run on B550/X570