USB keyboard not operational

April 21, 2018 at 21:38:21
Specs: Windows 7
W7/64. Been having issue slast few days with computer not reconising wireless mouse. Took a couple of retstarts and some waiting. Now, it will not reconise my keyboard. I have tried front and rear USB ports. Tried the keyboard on another computer. Ok. When I boot, I can't access BIOS set up to check USB setting. It is now in start up repair but prompting me to do recovery but I have no keyboard to select that. Tried taking the CMOS battery out. Tried cleaning all connectors. Also, for a while it has had an issue. The screen would stay in standby when booted. Aftr I heard the music, I would do a restart and the screen would come on the second try. I am thinking it may just be a bin job but money is an issue at the moment. Any suggestions would be welcomed to try. Slim or not.

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#1
April 21, 2018 at 22:37:07
"I am thinking it may just be a bin job"
Long way off, for doing that.

Lets see if Lazesoft can get some action.

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message edited by Johnw


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#2
April 22, 2018 at 00:16:30
Since you mention that even during POST the keyboard is not responding;
Does the keyboard LEDS light up if it has any LEDS? Or the optical mouse LED if visible?
Could be a USB power problem or other other hardware problem.

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#3
April 22, 2018 at 16:08:16
During certain times the motherboards used USB expansion hubs and onboard USB controllers to expand the number of USB ports and even add USB 3.0 ports on chipsets that supported a minimum amount of them or none at all. These are only active after the Windows drivers have loaded. Try using only the rear USB 2 ports that are directly on the motherboard and try a couple of them to see if that helps.

You have to be a little bit crazy to keep you from going insane.


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#4
April 22, 2018 at 17:22:08
good thought. I have a USB meter fro measuring volts, current etc. I plugged that in and as soon as I switched mains power on to comp, the USB port showed volts.

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#5
April 22, 2018 at 17:25:14
Tried that. I read about that somewhere else in here. If I take the CMOS battery out then wait, put it back and tre boot, I get the BIOS report? about failed boot attempts but can't do anything about it. That times out and start continues normally until it gets to the scan.

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#6
April 22, 2018 at 17:28:57
Something I forgot to mention. I have an OEM W7 disk.

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#7
April 22, 2018 at 17:59:37
ok. I have burned a dvd. put it in drive. Started computer. Does the same thing. Maybe HD has priority but I din't have access too change that because of this issue.

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#8
April 22, 2018 at 21:30:31
Volts may be being sent to the USB port but the chipset cannot translate signals if it is run through other controller or hub until the drivers are loaded. Try other rear USB ports.
Sometimes unplugging the primary internal hard drive will allow easier access to the BIOS set up without F key needed.

You have to be a little bit crazy to keep you from going insane.


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