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11-01-2014 02:00 AM #1New ROGer Array
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Turn USB off when the computer is shut down
Motherboard is Maximus VI Hero
How to turn the USB ports off when the computer is shut down?
Looks like the USBs are powered even when the PC is off.
Must be a setting in BIOS.
Thanks
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11-01-2014 01:26 PM #2ROG Guru: Blue Belt Array jab383 PC Specs
jab383 PC Specs Motherboard 24/7 rig : Maximus VI Extreme Processor i7 4790K Memory (part number) 16GB Mushkin Redline 2400 10-12-12-28 + 16GB Corsair Vengeance 2400 10-12-12-31 Graphics Card #1 AMD Firepro W5000 Sound Card M6E Supreme FX Monitor Dell U2413 Storage #1 Kingston SH103S3240G SSD Storage #2 Seagate ST1000DM003 1TB CPU Cooler Custom water loop, Delidded, Liquid Metal TIM Case CoolerMaster HAF XM Power Supply Corsair HX-750 Keyboard Logitech G710+ Mouse Logitech M705 OS Windows 7 64 Pro
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Hi TigGrig, and welcome
Have you checked Windows Device Manager? In Device Manager > Universal Serial Bus controllers, go through all the listed devices, click on Properties, then the Power Management tab. In win7 at least, there are check boxes for "allow Windows to turn off" and "allow this device to wake Windows." The "allow this device to wake Windows" should be unchecked -- the USB port has to be powered and operating while Windows is off in order to wake Windows. Then the "allow Windows to turn off" should function.
Jeff
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11-01-2014 02:54 PM #3New ROGer Array
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I'm pretty sure it's not a Windows setting. It should be in BIOS somewhere.
When the PC is shut down how the Windows can control anything?
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11-01-2014 03:12 PM #4
Hello
If your power supply is fully ErP compliant setting ErP Ready to Enabled (S4+S5) will disable the USB ports when the system is powered down.
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11-02-2014 06:22 PM #5New ROGer Array
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The PSU is Thermaltake SP-750PCBUS. Is it ErP compliant? Can't find any info.
But I read that after enabling ErP the PC won't start at all in some cases.
ThanksLast edited by TigGrig; 11-02-2014 at 06:31 PM.
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11-02-2014 10:23 PM #6
Hello
To know if it is or is not fully compliant you would need to ask the power supply manufacturer or test if the system properly functions when ErP is enabled. Enabling Erp will have no bearing on startup unless there is an issue with the PSU.
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08-20-2016 08:53 PM #7New ROGer Array
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Hi Praz. I have same issue with my M8Hero mobo. Illumination on USB devices keep lighting. I have enabled ErP Ready option on BIOS to prevent it and cut off the power on USB ports. But this time my PC keeps turn on itself. Initially all the LEDs goes off after the shutdown then, the system POSTs.
Originally Posted by Praz
I am using Seasonic 860-XP2. Manufacturer specifications say it has ErP.
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