Not enough power from USB to run Keyboard

Sparky

Sparky

Sparky

Soldato
Joined
23 Nov 2004
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Just got a Gigabyte B450 DS3H and cant get my K95 to power up , says insufficient power? Any ideas on how to solve this. Have disabled usb suspend in power options but no joy.
Help greatly appreciated.
 
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If the above doesn't work, you could try connecting it to a different connector, if you have something with a high draw next to it. I don't know if they're electrically wired that way, where something on the same I/O would cause an issue, but shouldn't do any harm to try.
 
On every USB hub there's power limit. You can lok it up in Device Manager In previous Windows versions you were able to look it up in Device Manager for USB controllers or hubs, but now I looked into Win10 and can't see it anymore. And ports -> controller assotiation should be explained in MB manual, so likes of external spinning HDD and RGB keyboard may overpower one of controllers. Luckily, there's always more than one of them in system, so moving your keyboard to different port is an option here.

EDIT:
Just to add - nowadays with high power charging on USB it has way less of an impact, but sometimes on less expensive boards it can catch you unaware. Looked up your MB and it looks like it may have less than ideal power delivery system..
 
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Robert T. said:
On every USB hub there's power limit. You can lok it up in Device Manager In previous Windows versions you were able to look it up in Device Manager for USB controllers or hubs, but now I looked into Win10 and can't see it anymore. And ports -> controller assotiation should be explained in MB manual, so likes of external spinning HDD and RGB keyboard may overpower one of controllers. Luckily, there's always more than one of them in system, so moving your keyboard to different port is an option here.

EDIT:
Just to add - nowadays with high power charging on USB it has way less of an impact, but sometimes on less expensive boards it can catch you unaware. Looked up your MB and it looks like it may have less than ideal power delivery system..
Click to expand...
OK thanks for that will see if I can reduce usb devices
 
Tetras said:
If the above doesn't work, you could try connecting it to a different connector, if you have something with a high draw next to it. I don't know if they're electrically wired that way, where something on the same I/O would cause an issue, but shouldn't do any harm to try.
Click to expand...
Graphics card is close by
 
Disconnected some of the usb hdds and plugged it into the 2 usb 3 on the side, fired up straight away, thanks for all the suggestions
 
Graphic card is not attached in any way to USB controllers/hubs/ports :) maybe except on CPU level so this won't affect you.
If you have so many of them it's becomes problem just buy yourself external self-powered USB 3.0 hub - this will have few other benefits - you can stash away loads of USB cables or make more USB ports more available if you put them closer to you.. Either way since it'll have it's own power supply you won't run into this problem.
 
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