Question 2nd m.2 slot not reading my drive

[dballs]

I built a new PC recently and had a Intel 660p 512GB (M.2 pci-e NVMe 3.0 x4) installed in my Ultra m.2 (PCIe Gen3 x4) slot on my Asrock Steel Legend B450m mobo. It worked great for a couple months but I decided I wanted a larger, better, faster, longer endurance OS/Apps drive as games have gotten crazy large and I filled my 512GB drive with just a handful of games and apps near or past 70% plus I wanted a separate storage drive for files. I bought a 1tb HP EX920 and slapped that one in the Ultra m.2 slot and the 660p in the second M.2_2 (SATA3) slot. I know the second M.2_2 slot is only SATA3 but i figured the drive would just run a little slower but still work. Am I wrong?

It says in my motheboard manual
"• 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0,
RAID 1 and RAID 10), NCQ, AHCI and Hot Plug*
* M2_2 and SATA3_3 share lanes. If either one of them is in use,
the other one will be disabled.
• 1 x Ultra M.2 Socket (M2_1), supports M Key type
2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32
Gb/s) (with Summit Ridge, Raven Ridge and Pinnacle Ridge)
or Gen3 x2 (16 Gb/s) (with Athlon 2xxGE series APU)**
• 1 x M.2 Socket (M2_2), supports M Key type
2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module**
** Supports NVMe SSD as boot disks
** Supports ASRock U.2 Kit"

I have no SATA drives plugged in at all.

Build:
CPU: Ryzen 5 2600 (stock speed)
Mobo: Asrock Steel Legend (running BIOS 2.10)
RAM: Corsair Vengence RGB Pro 3000 (running xmp)
GPU: MSI Gaming X RX 580 8GB
OS storage in Utlra m.2 slot: HP EX920 1TB
Other storage in m.2_2 (SATA3): Intel 660p 512GB
PSU: Rosewill Glacier 850 watt 80+ Bronze
axGear Firewire PCI-E Firewire Controller Card IEEE 1394 Adapter in the PCIe1 slot
Windows 10 pro (fully up to date day of post)
All drivers updated day of this post

Thanks in advance!

 

[Obakasama]

Kingston's FAQ section has a response to this:
https://www.kingston.com/en/ssd/system-builder/m2_faq
Top right question.

Basically a PCIe SSD won't work in a SATA port.

 

[dballs]

Kingston's FAQ section has a response to this:
https://www.kingston.com/en/ssd/system-builder/m2_faq
Top right question.

Basically a PCIe SSD won't work in a SATA port.

Even though it says right in the manual

"1 x M.2 Socket (M2_2), supports M Key type2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module**
** Supports NVMe SSD as boot disks"

 

[USAFRet]

The M.2 port only supports a SATA m.2 drive.

The statement of "** Supports NVMe SSD as boot disks " refers to using an NVMe drive in a PCIe adapter in a PCIe slot on your motherboard.
They mention that specifically, because not all motherboards can boot from a drive in such an adapter.

 

[dballs]

The M.2 port only supports a SATA m.2 drive.

The statement of "** Supports NVMe SSD as boot disks " refers to using an NVMe drive in a PCIe adapter in a PCIe slot on your motherboard.
They mention that specifically, because not all motherboards can boot from a drive in such an adapter.

Thanks for that clarification! man that stinks. And my second PCIe slot is only 2.0 so I guess I will be throttled either way, this one just cost me $12 (for the adapter).

 

[USAFRet]

Thanks for that clarification! man that stinks. And my second PCIe slot is only 2.0 so I guess I will be throttled either way, this one just cost me $12 (for the adapter).

Giving you pretty much zero performance boost over a regular SATA III SSD.

 

[Starkstares]

It's ironic that I had the same issue but discovered that the B450 supports NVME on the M2_2 but only at gen3x2 but the B450M (basically identical boards) only supports SATA.