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Old February 9th 18, 11:37 PM posted to alt.comp.os.windows-10
Paul[_32_]
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Default Prevent Windows from putting +5 V on USB connector while offor in hibernation

Fokke Nauta wrote:
On 4-2-2018 11:51, Fokke Nauta wrote:
Hi all,

Using a server in our LAN (W10 pro 64b). It is using a master-slave
mains power connector, which works by a USB cable. When the server is
on, the slave power connector is on, and from there the other pc's and
the switch and router get their mains power.
This works well, but when the server is down (switched off or in
hibernation), there is still +5 V on the USB connectors, causing the
slave mains supply to remain on.
Is there any chance to shut down the USB connectors as well when the
server is off or in hibernation mode?

Thanks beforehand.

Fokke


Thank you all for your replies and help.
However, I didn't manage. Went through the BIOS, changed values in W10
(Thanks, Paul). The +5 V remains on the USB ports, even when it is
powered down.

Fokke


https://answers.microsoft.com/en-us/...9aeb8d1?auth=1

Some users are apparently getting what they want
by disabling Fast Start.

The "Powercfg -h off" thing is a similar hibernation-related
setting.

Now, the computer doesn't care what happens after it's hibernated,
so I don't understand why that necessarily turns off the USB power.
It's almost like someone at Microsoft doesn't want you starting
a machine by pressing the keyboard... when it's hibernated ???

Paul
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