Question Gigabyte Designare Z390 m2 too slow with adapter

[AlexS]

Hello

I have a Gigabyte Designare Z390:
https://www.gigabyte.com/Motherboard/Z390-DESIGNARE-rev-10/sp#sp

I also have a Rivo Dual M.2 SATA III and M2 NVME to PCIe 3.0 X4 Adapter Card - Add M.2 SSD Devices to PC or Motherboard, Supports 1 M.2 SATA III (B Key) SSD and Second M.2 PCIe 3.0 SSD (M-Key):

Rivo Dual M.2 SATA III and M2 NVME to PCIe 3.0 X4 Adapter Card - Add M.2 SSD Devices to PC or Motherboard, Supports 1 M.2 SATA III (B Key) SSD and Second M.2 PCIe 3.0 SSD (M-Key): Amazon.co.uk: Computers & Accessories

Free delivery and returns on eligible orders. Buy Rivo Dual M.2 SATA III and M2 NVME to PCIe 3.0 X4 Adapter Card - Add M.2 SSD Devices to PC or Motherboard, Supports 1 M.2 SATA III (B Key) SSD and Second M.2 PCIe 3.0 SSD (M-Key) at Amazon UK.

www.amazon.co.uk

I have my third m2 SSD drive plugged into this Rivo adapter.
The sequential read is around 1677.99 MB/s which is about half the speed I expected (when it was plugged into one of the dedicated slots in the motherboard it was around double that).

So how can I improve the speed here?

I notice the Rivo card I bought is only "X4", should I have bought an X8? If so can anybody recommend me a card please? (I can't see any).

Maybe I can do something in the BIOS? Please check BIOS screenshot below.
The Rivo adapter is in the PCIEX8 slot (the PCIEX16 slot has my Nvidia Geforce 1070 card). I'm on the latest BIOS firmware BTW.

Thanks...

 

[kanewolf]

Hello

I have a Gigabyte Designare Z390:
https://www.gigabyte.com/Motherboard/Z390-DESIGNARE-rev-10/sp#sp

I also have a Rivo Dual M.2 SATA III and M2 NVME to PCIe 3.0 X4 Adapter Card - Add M.2 SSD Devices to PC or Motherboard, Supports 1 M.2 SATA III (B Key) SSD and Second M.2 PCIe 3.0 SSD (M-Key):

Rivo Dual M.2 SATA III and M2 NVME to PCIe 3.0 X4 Adapter Card - Add M.2 SSD Devices to PC or Motherboard, Supports 1 M.2 SATA III (B Key) SSD and Second M.2 PCIe 3.0 SSD (M-Key): Amazon.co.uk: Computers & Accessories

Free delivery and returns on eligible orders. Buy Rivo Dual M.2 SATA III and M2 NVME to PCIe 3.0 X4 Adapter Card - Add M.2 SSD Devices to PC or Motherboard, Supports 1 M.2 SATA III (B Key) SSD and Second M.2 PCIe 3.0 SSD (M-Key) at Amazon UK.

www.amazon.co.uk

I have my third m2 SSD drive plugged into this Rivo adapter.
The sequential read is around 1677.99 MB/s which is about half the speed I expected (when it was plugged into one of the dedicated slots in the motherboard it was around double that).

So how can I improve the speed here?

I notice the Rivo card I bought is only "X4", should I have bought an X8? If so can anybody recommend me a card please? (I can't see any).

Maybe I can do something in the BIOS? Please check BIOS screenshot below.
The Rivo adapter is in the PCIEX8 slot (the PCIEX16 slot has my Nvidia Geforce 1070 card). I'm on the latest BIOS firmware BTW.

Thanks...

I think it is the adapter. An X4 is typically associated with one M.2 NVMe. With an X4 card, and no obvious PCIe switch, I believe they just split the 4 lanes between the two slots and each slot is running an X2 interface. I think CrystalDiskInfo will show the interface width and confirm my hypotheses .

 

[AlexS]

Thanks.

I shall check out that software.

FYI only one M2 is plugged in (nothing else).

One of the reviews on Amazon said they achieved speed over GB/s.

Also the description says:
"1 M.2 Device (M key) to run via PCI-E interface, up to 32 Gbps"

I see what you are saying though. Thx!

 

[AlexS]

Hmm maybe I need to toggle this setting?
I may lose 2% speed of my NVIDIA 1070 card.(apparently) which will probably break Flight Simulator 2020

Or maybe try other slots?

 

[kanewolf]

Hmm maybe I need to toggle this setting?
I may lose 2% speed of my NVIDIA 1070 card.(apparently) which will probably break Flight Simulator 2020

Or maybe try other slots?

I can't find a manual for that Rivo card. That is never a good sign to me.