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USB power staying on
reko19:
Hi,
Recently upgraded my PC, now USB power stays on after I shut the power off to the machine. I am using ASUS motherboard, don't think there are any BIOS options to disable it. I am thinking of installing PCI expansion board to take care of this, anybody knows if the power at the USB ports from the expansion board would turn off when PC is down?
Thanks
Kevin Mullins:
--- Quote from: reko19 on February 16, 2009, 04:51:19 pm ---USB power stays on after I shut the power off to the machine.
--- End quote ---
More information is needed....because that's just not possible.
Explain "machine" and "shut the power off".
Are you talking about mains power shut off or are you talking about "it is now safe to shut your computer off" shut off?
Are you talking onboard USB or a USB hub type thing?
If the PC's power supply is literally shut off, or if the mains power is shut off, then anything onboard would no longer have power either.
SirDaShadow:
--- Quote from: Kevin Mullins on February 16, 2009, 05:44:35 pm ---
--- Quote from: reko19 on February 16, 2009, 04:51:19 pm ---USB power stays on after I shut the power off to the machine.
--- End quote ---
More information is needed....because that's just not possible.
Explain "machine" and "shut the power off".
Are you talking about mains power shut off or are you talking about "it is now safe to shut your computer off" shut off?
Are you talking onboard USB or a USB hub type thing?
If the PC's power supply is literally shut off, or if the mains power is shut off, then anything onboard would no longer have power either.
--- End quote ---
I think what he means is that when you shut down the computer but the power supply switch is on and hooked up, the motherboard would still supply the +5V lines to all of the USB ports. I know because I have an Asus mobo that does exactly that.
After some googling I found this thread http://forums.whirlpool.net.au/forum-replies-archive.cfm/900068.html
Here is what I googled about it so far http://www.google.com/search?hl=en&client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&hs=4EX&q=asus+usb+power+shutdown&btnG=Search
Hoopz:
I was just about to post the same thing as SirDaShadow (minus the links though as he's faster).
I also had an Asus mobo and when I received the GGG NovaGems, the buttons would stay lit when the pc had shutdown. I cant recall though how I fixed it but I thought it was BIOS setting. I quickly flipped through my manual but didn't see it.
orion:
I'm in the same boat, and I must say its rather annoying. Thanks for that link I saw something in it about an energy star setting in the BIOS. Hopefully that will sort things out. If not, the only thing to do as suggested is grab a USB PCI card.