Help - PCIE 5.0 SSD dropping to 1x transfer mode after boot

System Performance Solid State Drives
1

My Crucial t705 4tb randomly operates in 1x mode after booting or when exiting hibernation. Sometimes its 5x, other times its 1x. Motherboard is an Asus x670e-i. I have tried the following without success:

  • changing BIOS pcie config from auto to 5x
  • Samsung, Micron, and Solidigm NVME storage controller drivers
  • Disabling various PCIE devices within the BIOS that could compete for bandwidth (thunderbolt controller, network controller, bluetooth, etc.)
  • Disabling ASPM within windows and within BIOS
  • various obscure PCIE settings
  • latest bios updates

Any help would be greatly appreciated!

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3

Thanks, but I have tried these things already (i.e. my fourth bullet point).

4

Did you try to update the firmware of the SSD and the motherboard?

https://rog.asus.com/de/support/FAQ/1042630

5

Of course. Issue persists, even with the latest beta BIOS.

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1 Like
7

nice. wccftech also has an article.