Mag B550 M.2 PCIE GEN 4 issue

linwelin · 30 Jul 2023 at 14:09

Currently running a mag b550 with a 5700G I bought a Samsung 990pro NVME but it is not running in PCIe gen 4 only gen 3, do I have to change a setting in the bios to get gen 4 to work?

Thanks

Tetras · 30 Jul 2023 at 14:16

linwelin said:
do I have to change a setting in the bios to get gen 4 to work?

I believe you have to change CPU, see here.

Smallprint note in the manual:

M2_1 slot (from AMD Processor)
Supports PCIe 4.0/ 3.0 x4*
Supports SATA 6Gb/s
Supports 2242/ 2260/ 2280/ 22110 storage devices

* The supported specification depends on installed processor.

linwelin · 30 Jul 2023 at 14:17

Tetras said:
I believe you have to change CPU, see here.

Smallprint note in the manual:

SON OF A B****

Thank you

MissChief · 30 Jul 2023 at 14:20

linwelin said:
SON OF A B****

Thank you

Yeah 5700G is a reworked 3000 series CPU.

lsg1r · 30 Jul 2023 at 15:10

Honestly, ignoring any headline speeds, which ideally need 2x gen 4 drives anyway, and the fact you could have gone for a cheaper option, you honestly won't notice the difference between gen3 and gen4.