850 watt Corsair with 4 x.5v rails running only one low draw video card

[deleted] 850 watt Corsair with 4 x.5v rails running only one low draw video card

    Hmmm, does not sound like a Solus issue, as these stuff are either hardware related (which concerns the Linux kernel as that handles the hardware) or BIOS related. We would know for sure if you could use a live CD/USB to test it under another distribution. That is a fairly mature motherboard so I assume the latest kernel update would not fix it either... Unfortunate part is, it is difficult to suggest anything BIOS related without having access to a motherboard that has the same BIOS. I am stumped, sorry 🙁

      arkhenius did the live distro and had same issue, this is BIOS related for sure. I have latest BIOS and kernel installed

        to update, I have tried live cd of Manjaro, Tails, Kali, Solus all with same issue. Legacy usb ports pass .5v, BUT no data/ OS recognition

        You might try to find a legacy install of Ubuntu (like maybe two years back?)...but I suspect you'll find the issue persistent there too. This just to make sure that it isn't an issue with most recent kernels.

          [deleted] Kali, Solus, Manjaro and TAILS all have same issue when loaded as live OS . USB legacy ports all pass .5v but no data/OS recognition.

            dbarron Thanks, next I am going to boot into BIOS and pop pix of my USB/inputs settings to post. Suspect it is in legacy support/handoff settings

              If I recall, changing the IOMMU controller to enabled in this configuration renders ALL USB ports useless and I must reboot with PS2 KB or mouse, so that's one I don't want to change again

              • [deleted]

              • Post #28
              • Edited

              That seems to be a common issue with that series of boards on Linux.

              Add iommu=soft to boot parameters via this line (run it in a terminal)
              echo 'iommu=soft' | sudo tee /etc/kernel/cmdline

              Then run
              sudo clr-boot-manager update

                [deleted] THANK YOU SO MUCH!!!! I will reboot and see whats up, and get back at you!

                  [deleted] before I reboot, when I do should I hit5 up the BIOS and enable IOMMU? I'm guessing yes, but confirm, I don't feel like having to run and get my ps2 keyboard and mouse out again 🙂

                      • [deleted]

                      • Post #31

                      Drewfus It doesn't hurt to try first without

                        Just did, and I'm GOLDEN, all USB ports working as they should! Thanks a million!
                        SOLVED!!!!
                        I tried a dozen other Linux boards, and even Gigabyte themselves, and you got me sorted, I really appreciate it!

                          2 years later

                          Thanks! I have a similar motherboard and ran into the same issue, now I can have all mi usb 2 and usb 3 port running at the same time!