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USB power staying on
ghettodish:
When you power off does the computer go into hibernation or sleep mode? The computer in my car does and the usb ports stay powered for 20 minutes, then shut down. You might be able to change the settings in control panel/power options if you can't find the USB settings in your BIOS.
MonMotha:
USB ports are often left powered in soft-off (including STR and "Hibernate") mode in order to allow you to wake the PC from the keyboard. Your USB device should turn everything it can off in order to conserve power (after all, for all it knows it's hook up to a laptop that is off and on battery). This would certainly involve turning off any powered loads. The USB specification requires 2mA draw max for compliance.
If your device isn't turning off (apparently the GGG LED-Wiz does not), you should contact the device manufacturer for a fix. In most cases, it should be fixable with a firmware update if the device supports such a function.
Most motherboards in the past allowed the user to configure this behavior. Some even let you set it up per-port. Often, it's a hard jumper setting rather than a BIOS setting, though. Check your mobo manual, and also take a good look at the motherboard itself. Name-brand PCs may not allow this to be set since they're usually built to be as cheap as possible.
Most mobos used to default USB power in soft-off to "off", but given the prevalence of this question recently (almost has become worthy of a FAQ over the past couple months), apparently some major makers have changed their default.
Kevin Mullins:
Ah..... I can see now what you all are saying.
Just not how I interpreted "shut off", I'm thinking along the lines of a master power switch.
(which it should have anyways as far as I'm concerned if it's a game cabinet)
Honestly, I just never even knew some motherboards did that.
I've never have anything but a USB printer and mouse plugged into mine.
reko19:
Thank you for the replies. I followed the links above and googled it myself. Looks like I am out of luck with Asus. I am powering some of my LEDs from the +5V available off I-PAC, they stay illuminated after I turn the PC off by pressing the on/off button. Obviously, tuning a switch on the power supply kills everything. I was hoping it would time out, but it stays on for hours. My question remains (unless I missed an answer): would having PCI expansion board take care of this? ??? They are really chip under $20 for 4-port USB seems like the best solution if it works. Thank you.
MonMotha:
Yes, USB ports on a PCI expansion card SHOULD take care of this. I don't think +5VSB even appears on the PCI connector, and if it does, I suspect most cards would use the normal +5V rail for VBUS instead of the +5VSB.
I should re-iterate, though, that your device is broken. It should not do that since it clearly won't meet the suspend power requirements for USB. I sure hope it doesn't display the USB logo anywhere.