WD_Black SN850 not detected by BIOS on bootup from power-off

I am having a similar issues with a 500gb sn850. I’m a total noob building my first PC, so hitting a wall where my motherboard won’t even detect the m.2 is so frustrating. Any word on a fix?

MB: MSI B450 Tomahawk Max II w/ Ryzen 5 3600
m.2: WD sn850 @500gb

I’ve heard bubkis. For those of you that are not seeing the drive at all, have you tried soft rebooting (i.e. ctrl-alt-del) into the bios to see if it appears? The original issue I am having is that the drive does not appear on a cold boot from power off but does after soft rebooting and works normally thereafter.

me problem is completly inverted… after energy save mode or anything else… the drive doesnt appear. then i must do a hard reboot (power off 3 secs) then power on and it will work…

I’ve been troubleshooting for 2 days now and have zero consistency other than if it does POST/boot, it won’t restart. I’ve recognized it in BIOS and even formatted one of the few times I was able to boot to windows with it installed. I’m currently going back to default BIOS with it removed and then installing the M2 to try 1 change at a time. Repeatedly if possible. Every time I think I have a trick or solution, it knocks me back down.

MOBO: MSI B550 GAMING PLUS
INSTALLING (as an addition): SN850
ON: M2_1

DISCREPANCY: Will not POST on my normal or default BIOS settings. I’ve read it can be XMP, CPU boost, and/or OC settings.

I have MSI Laptop Prestige 14 EVO A11M-220 Intel Core i7 11th Gen 1185G7.
External Acasis USB4.0 M.2 SSD Case 40Gbps M2 NVMe Case.
SN850 NVMe M.2 2280 1TB in the case.
I get a beep but no sign of a drive in file explorer. ctr/alt/delete has no effect. I assume I just should send it back and get a Samsung drive.

I took Phreedom’s advice and ordered the Seagate. I don’t see this WD issue going away. Thankfully I ordered the WD from Amazon and it’s going back.

Update: swapped at Best Buy for the Samsung 980 which worked right outta the box.

Good luck!

I went to WD and registered my SN850, followed several links of Martin Winkler, downloaded several helpful links from WD and even downloaded EdgeRover which helped me connect to my NAS. My SN850 is showing up as D drive now in file explorer as pretty as a picture. All is well on my MSI Prestige Intel version.

I think there may be more like me who thought of these small NVMe drives as simple plug and play. My first attempts at installation were more like how I would treat a thumb drive. After I registered it and started using help links the installation went pretty smooth.

I have the same SN850 2 TB nvme drive and my system wouldn’t boot with it in the primary nvme slot (the one controlled by the cpu). I had to move it to an nvme slot controlled by the chipset in order for my system to boot. I used another gen 4 drive (xpg gammix s50 2TB) in the same slot and it worked just fine.
My system is using a Gigabyte Z590 Vision G Motherboard, Intel Core i7 11700K and a Gigabyte RTX 3070 Vision OC Video card.

I have the same problem with my Lenovo Legion 5 Ryzen 7 4800H. Thought I would upgrade with the best SSD around but … as with you guys nothing. Lenovo are not much help as are WD, why, don’t they want our custom? Any help would be most appreciated as my new laptop only comes with 256Gb.