Question Does using multiple m.2 slots slow down read/write speeds.

[1Bad7752]

I have a MSI Z590-a Pro motherboard with Intel i7-11700K cpu. I have 3 Samsung ssd's installed.
Slot 1 (nvme) 980 Pro for operating system
Slot 2 (sata) 980 for personal files
Slot 3 (sata) 980 f9r games
When I run User Benchmark, it shows all 3 underperforming. Does using all 3 m.2 slots slow down performance.

 

[USAFRet]

When I run User Benchmark, it shows all 3 underperforming. Does using all 3 m.2 slots slow down performance.

No.
And UBM is a poor tool to show drive speeds.

Run Samsung Magician and CrystalBenchMark.

Post the results here.

 

[USAFRet]

Slot 2 (sata) 980 for personal files
Slot 3 (sata) 980 f9r games

And the 980 is not a SATA drive.
Those are PCIe 3.0.