BenTed wrote:
So I can shut down the PC and it will switch off and the PSU is left turned on with power running into the motherboard.
I can also then after the above, turn the PC off at the power supply which will cut all power to the motherboard.
If the power supply is left turned ON, the issue does not occur. If the power supply is turned OFF (killing all power ) the issue I've described occurs.
I'll be honest with you, I have a bad feeling that this forum is pretty dead, and that most people with this board have moved on. You might try another forum with a more active community, and maybe you'll be able to find an answer there. Maybe
HardForum,
Overclockers or
TomsHardware, just to name a few offhand. In fact, I saw a possible solution to your problem on
Tomshardware's forums. I just want to verify what all you meant by when the PSU is off, to which, seems kinda strange to me, but anyways...
PSU Off - Do you mean system shutdown? (i.e. in Windows, Start Menu>Shut Down ) ?
PSU On - Either leave the computer on or put to Sleep/Hibernate mode (i.e. in Windows, Start>Sleep) ?
If that's what you meant, you might want to be more clear about that. Also, can you provide a picture as to what exactly broke? I don't exactly understand what you mean by USB 3.0 Hub, if it's something related to the front panel, back panel, or something on the board, itself.
One thing that confuses me in terms of the PSU being shut off, as you say, is, I recently bought a
USB powered fan that I just plug into my computer and leave on, all of the time. It's one of those silly little USB gadgets. When I shut my computer off, the fan stays on. I honestly had no idea this would occur, until I bought the fan, had it plugged in and then shut my computer off. it was still on. Why, I don't know. But it seems to me that when I shut down my computer, my PSU seems to be still on, unlike yours. I would imagine that if you plugged your smartphone into your PC to charge, it should also charge when the computer is off, at least in my scenario.
What I might look into, is your Device Manager. On my computer, if I go to the
Device Manager, under
Universal Serial Bus controllers, and then check every device by Right-clicking, going to
Properties and then
Power Management, there's a checkbox, which says
Allow the computer to turn off this device to save power. This is what I'm observing:
- Some Generic USB Hub devices are set to turn off the power, some are not.
- All USB Root Hub (USB 3.0) and Generic Superspeed USB Hub devices are set to turn off.
- All USB Root Hub devices are NOT set to turn off.
These devices do not have the Power Management tab, so don't bother looking:
- ASMedia USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
- Intel (R) USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
- Standard Enhanced PCI to USB Host Controller
Long story short, maybe ensure that something is still drawing power when you shut down. Maybe that'll fix your problem. It may not be exactly what you want, but it's a workaround. Or maybe try finding the specific device that is broken (which might take awhile) and try disabling it from the Device Manager. I wouldn't know offhand if it's possible to do such within the BIOS, but if it is, that might be ideal.
Other than that, I'm all out of ideas. Good luck, and let us know if you find a solution.
