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Keyboard Not Responding


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#1 Cyberman

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Posted 29 April 2008 - 06:41 PM

I tried to fix a friend's computer which was infected with many viruses. It is a desktop compac computer with Windows XP SP 2. I discovered the following features and programs were disabled: folder options, regedit, and task manager. The situation was so hopeless that I've decided that the best option was to format the computer and install windows and other essential programs. I tried to do a bit of fixing and cleaning by usind hiren's boot CD, but I douldn't make it boot because the keyboard didn't repond. When I rebooted, the screen gave me two options: (1) boot from Hard Desk or (2) boot from the Cd, and promted me to enter 1 or 2, but when I hit 2 nothing happens. The computer just booted regulary from the hard desk. I tried to go the setup (bios) by hitting F2 as shown on the boot screen, but nothing happens. Instead the computer booted regularly from the hard drive. I also couldn't make it boot in safe mode because again the keyboard didn't respond to hitting the required F key. As a last resort I tried to boot from Windows XP CD, but again I couldn't boot from the CD because the keyboard didn't respond. By the way the keyboaed responds normally when I do word processing. It is PS/2 Keyboard, not a USP one.

I've tried googling around for an understanding or a solution. So far I couldn't find any. I also read this post in one of our forums: http://www.bleepingcomputer.com/forums/t/118993/keyboard-not-responding-can-not-enter-safe-mode/ but it didn't help.

Can Viruses do all that kinds of damaged? Can they destroy the bios? I really don't know what to do with this problem? I appreciate it greatly if any one can make sense out of this crazy problem and suggest some solutions?

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#2 dc3

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Posted 30 April 2008 - 12:07 AM

Have you tried a different keyboard?

Have you looked in the Device Manager under Keyboards?

Start> right click on My Computer> Manage> Device Manager. Click on the + in the box next to Keyboards to expand the tree and look of a red X or a yellow dot with an exclamation mark in it.

Have you check in the BIOS to see what the keyboard setting are set to?

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#3 Klinkaroo

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Posted 01 May 2008 - 02:30 PM

Is you're keyboard usb? If so what is happening is that the BIOS dosn't have any usb drivers so your keyboard doesn't work until you get into windows. I have the same problem and have to leave a PS/2 keyboard beside my regular keyboard just to select linux or windows in the boot menu.

Anyways a quick way to fix you're problem, find a PS/2 keyboard (The older keyboards are often like this, they have a round connector with a bunch of pins in it instead of the rectangle connector).

Hope this helps :thumbsup:

#4 Cyberman

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Posted 05 May 2008 - 01:34 PM

Hi guys,
Sorry for the delay to respond. I've been busy with my work.
As I said the keyboard is a ps2 not a usp. I tried another ps2 keyboard with no luck. There is no yellow question mark on the list of device manager. doc3, you suggested I should go to bios to check the setting for the keyboard. As I said in my original post I cannot get to the bios in the first place because the keyboard is not responding. So I am in a vicious circle.
One suggestion I haven't tried to remove motherboard battery and play around with on board jumpers to reset the bios to their original setting. I am really scared to do that because I've never done it and I don't know how to play around with jumpers. Any suggestion on how to do that especially how to play around with jumpers?

#5 hamluis

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Posted 05 May 2008 - 01:49 PM

It's an either/or...you either remove the CMOS battery...or...you reset the CMOS jumper on the motherboard. Same effect.

What model Compaq is the system?

Is an owner's manual or motherboard manual available? Looking at either should show the exact location of the CMOS jumper, which is only 3 pins with a jumper over two of them (pins 2, 3). To short it, (after turning off the system), you simply move the jumper from the 2,3 pins to the 1,2 pins.

[post="http://www.tomshardware.com/forum/207507-28-help-reset-bios"]How To Short CMOS Jumper[/post]

Louis

#6 smurfgod

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Posted 06 May 2008 - 06:52 PM

shot in the dark here but is the keyboard just not responding in BIOS/boot up? and did you check for broken pins/dirt in the PS2 port?If it just plain out doesn't work then i'd try a USB keyboard if you happen to have one laying around. If it works once you get into the OS then disregard this post.

Edited by smurfgod, 06 May 2008 - 06:52 PM.





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