USB Devices not working on startup

[insyght]

[Reposting this in PSUs]

 

Hi helpful people,

I am having a bit of trouble.

 

So, recently I've encountered some strange issues with my USB-connected devices, like my keyboard.

Or like recently, my external sound card.

When I start my computer, my keyboard sometimes doesn't light up and I have to replug it to fix the issue.

I've never seen this as a problem, but recently I've been annoyed by my USB sound card not working when I boot into windows.

 

As with the keyboard, I usually replug it and after 5 seconds it works again. Now, this is quite annoying, as every time I replug it,

Nvidia Shadowplay decides that my mic is gone. (Don't know how and why) Also when I save replays without re-visiting the settings, there is not even in-game sound on the recordings.

 

I've tried reinstalling the audio drivers to see if that was the problem, but it persists. So it must be something with the USB ports, my motherboard or the power delivery.

I have ordered a replacement sound card to cancel out the possibility of a faulty USB cable... its due to arrive tomorrow (wed)

 

Specs or Devices:

ASRock B350 ITX Fatality

Creative Soundblaster X-Fi HD

Gigabyte Force K85

bequiet! Pure Power 10 500W

 

 

Any experience or help on this?

[insyght]

Up until now, I've narrowed it down to either PSU or MB...

 

The replacement sound card works for every other PC but mine.

I assume the 5V rail is kinda dead on my bequiet!

 

I could just scrap the sound card idea but who knows how long the PSU will last now that one rail has weakened..