Forum Thread

Desktop PC KB and Mouse Not Working

adams135 11,229 July 4, 2016 at 02:09 PM
Quick Question.

I can't get my KB or Mouse to work on a desktop PC I am working on until it starts to load Windows 7.

This means I can't do anything with the Function Keys (get into PC configuration for example).

Since it wouldn't work via my USB KVM I plugged a different KB into a USB port on the PC with the same results.


Thoughts/Suggestions would be greatly appreciated.?

.

13 Comments

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#2
Make/model of the computer/motherboard?

Some older motherboards have a BIOS setting to speed up booting by disabling USB at boot time. If the setting defaults to off, you could reset it by pulling the CMOS battery for a few minutes.
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#3
Quote from FlashX83 View Post :
Make/model of the computer/motherboard?

Some older motherboards have a BIOS setting to speed up booting by disabling USB at boot time. If the setting defaults to off, you could reset it by pulling the CMOS battery for a few minutes.
I wish I knew. This is a home grown PC. I have already requested my buddy who i am doing this for bring in his motherboard manual.
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#4
no idea.
i have similar problem with some keyboards, so i keep few very old PS/2 keyboards just for this purpose. too bad some new boards don't have PS/2 connector anymore.
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#5
Quote from adams135 View Post :
I wish I knew. This is a home grown PC. I have already requested my buddy who i am doing this for bring in his motherboard manual.
you could check. open up the pc and check for the motherboard model.
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#6
Quote from Left4Deal View Post :
no idea.
i have similar problem with some keyboards, so i keep few very old PS/2 keyboards just for this purpose. too bad some new boards don't have PS/2 connector anymore.
I keep a few also ,, but like you said ,, the new ones don't have PS2.

Quote from developedhuman View Post :
you could check. open up the pc and check for the motherboard model.
If I can figure out where the model number is on the motherboard I will if he doesn't bring the manual tomorrow,
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Last edited by adams135 July 4, 2016 at 07:11 PM
#7
Quote from adams135 View Post :
I keep a few also ,, but like you said ,, the new ones don't have PS2.


If I can figure out where it is I will if he doesn't bring the manual tomorrow.
its easy. it usually the largest letters printed on the board right next to the manufacturers sign. good luck.
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#8
this is the problem with some of the new mobos. you cant turn on the usb devices unless you go into the bios. but you cant go into the bios without your usb devices. lol.
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#9
Quote from antimattersmoothies View Post :
this is the problem with some of the new mobos. you cant turn on the usb devices unless you go into the bios. but you cant go into the bios without your usb devices. lol.
Talk about a Catch 22.
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#10
Quote from FlashX83 View Post :
Make/model of the computer/motherboard?

Some older motherboards have a BIOS setting to speed up booting by disabling USB at boot time. If the setting defaults to off, you could reset it by pulling the CMOS battery for a few minutes.
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#11
Fixed ...

I was going to remove the battery and reset but since the PC had been off and unplugged for hours thought I would give it one last try using the F2 key ... for whatever reason it let me in the configuration menu and changed the USB support to Legacy YES and now it works great on KB and Mouse..

So now I can try to fix what he brought it over for. I hate working on PCs but when I know more than my friends I have no choice.

Thanks for everyone's help and suggestions. Much appreciated.
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#12
Quote from adams135 View Post :
Fixed ...

I was going to remove the battery and reset but since the PC had been off and unplugged for hours thought I would give it one last try using the F2 key ... for whatever reason it let me in the configuration menu and changed the USB support to Legacy YES and now it works great on KB and Mouse..

So now I can try to fix what he brought it over for. I hate working on PCs but when I know more than my friends I have no choice.

Thanks for everyone's help and suggestions. Much appreciated.
lol. maybe the mobo only recognizes function keys.
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#13
Quote from developedhuman View Post :
lol. maybe the mobo only recognizes function keys.
Don't think I haven't had that thought ... I KNOW I tried F8 2 or 3 times ... I "think" I tried F2 .... hell getting old.
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#14
or only works for a very short time, like 0.1 second, have to press fast and may need few try
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