Question Is my Samsung 990 pro running at a reduced speed ?

[asadalrafidain]

Hello everyone
forgive my noobish question...I recently bought a 1TB Samsung 990 pro M.2 ssd, installed it on my motherboard (Gigabyte Z170X Gaming 5) in the M.2 slot nearest to the cpu, and I already had installed a toshiba SATA SSD and a generic M.2 SSD (was previously installed on the slot near the cpu, then moved to a farther slot when I installed the 990 pro), then I installed samsung magician to benchmark the 990 pro, and was surprised to find that while it is running at PCIe Gen. 3x4 (expected because of the old mobo), samsung magician reports that my pc is capable of running the ssd at PCIe Gen. 4x4

am I missing something ? If I remove all other ssds, will I get the 990 pro to run at PCIe Gen. 4x4 ?

https://www.imghippo.com/i/Ibm1241Uo.png

 

[Lutfij]

Gigabyte Z170X Gaming 5
That generation of motherboards only supported a max speed of PCIe3.0x4 off the M.2 slot so yes you are running at a reduced bandwidth compared to the PCIe4.0x4 that the drive can go to.

How do you extract PCIe4.0x4 off the drive? You need to swap your platform to something concurrent or any processor and motherboard combo that has native PCIex4 M.2 support.

 

[asadalrafidain]

Gigabyte Z170X Gaming 5
That generation of motherboards only supported a max speed of PCIe3.0x4 off the M.2 slot so yes you are running at a reduced bandwidth compared to the PCIe4.0x4 that the drive can go to.

How do you extract PCIe4.0x4 off the drive? You need to swap your platform to something concurrent or any processor and motherboard combo that has native PCIex4 M.2 support.

I thought so, but samsung magician made me suspect that may be the mobo supports PCIe Gen. 4
thanks for the reply

 

[USAFRet]

The drive is PCIe4 x4
The motherboard, OTOH, is PCIe3 x4.