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Explain keyboard not found

By wordworker ·
I have a custom built PC running Windows 98. For no apparent reason, it started failing to recognize my keyboard and give me a "keyboard missing" error. I could get it to "take" by unplugging then reconnecting the keyboard and rebooting, but it's gotten worse. After the keyboard errors started appearing, I'd also get freeze-ups so frequently I had to stop using the machine. I'm going to let a bench tech evaluate and repair it, but before I make that call, does it sound like anything you have seen before?

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Explain keyboard not found

by wordworker In reply to Explain keyboard not foun ...

Point value changed by question poster.

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Explain keyboard not found

by Ann777 In reply to Explain keyboard not foun ...

I've seen it happen with KVMs (Keyboard, Video, Mouse switches) and without and devices.

If it's a direct connect to your computer, power off the computer and unplug the keyboard. Get a flashlight and check/see if any dust has gotten into the port where the keyboard connects. clean it out (with a can of compressed air). Check the port and mae sure it is secure on the systeboard and make sure no labels interfere with the connector. Reconnect the keyboard, power up the computer and test.

Never connect the keyboard with the computer powered up. The keyboard pulls power from the system and I've seen many ports fry because of users re-connecting a keyboard with the computer powered up.

If you have a KVM in the middel of these devices, then you have four connections to check. Computer-->KVM computer number --> KVM main keyboard --> Keyboard. Make sure each of these connections are secure, no obstacles, and the ports are good.

Generally these problems get worse as the connector comes lose or the keyboard shorts out the systemboard. Your tech will probably recommend replacing the systemboard if that is the case.

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Explain keyboard not found

by wordworker In reply to Explain keyboard not foun ...

Anna77, I appreciate the advice. I think the big mistake I made was in disconnecting and reconnecting while the PC was still powered up. Doh!

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Explain keyboard not found

by opatzg In reply to Explain keyboard not foun ...

Have you tried a new keyboard? Mine occasionally got this error and then one day the fuse/diod blew on the back end of the motherboard, it was an older motherboard so I replaced it with a used one for $15. A new keyboard had no affect for me and as a matter of fact, I'm still using the old one with that system.

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Explain keyboard not found

by wordworker In reply to Explain keyboard not foun ...

I should have mentioned in my original post that I had (obviously, with all due respect,opatzg) tried a new keyboard.

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Explain keyboard not found

by wordworker In reply to Explain keyboard not foun ...

I should have mentioned in my original post that I had (obviously, with all due respect,opatzg) tried a new keyboard.

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Explain keyboard not found

by timwalsh In reply to Explain keyboard not foun ...

ALL devices will go bad over time. Some just happen faster.

Does the keyboard ALWAYS get recognized during boot-up? Does it only "die" after you have booted into Windows? If you boot into DOS mode, does the problem continue?

If you have a spare keyboard available, try switching it out.

Or move the suspect keyboard to a different computer to see if the problem follows the keyboard.

If neither option above is available to you, go buy a new keyboard and try it.

If the problem persists after trying the above steps, try removing the keyboard from Device Manager, reboot and have Windows reload the device drivers. See if there are new drivers available from the keyboard manufacturer.

No sense in paying good money to have atech do these steps, when you can do it for free (or almosty free - a new keyboard will set you back about $20).

If it comes down to the keyboard definitely being the problem, it will be cheaper to get a new one than to have someone fix the broken one.

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Explain keyboard not found

by wordworker In reply to Explain keyboard not foun ...

I should have mentioned in my original post that I had (obviously, with all due respect, Tim) tried a new keyboard. I hadn't thought of deleting the keyboard and letting Windows re-install it, though. I wish I could give partial points for this suggestion. Thanks.

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Explain keyboard not found

by wordworker In reply to Explain keyboard not foun ...

I should have mentioned in my original post that I had (obviously, with all due respect, Tim) tried a new keyboard. I hadn't thought of deleting the keyboard and letting Windows re-install it, though. I wish I could give partial points for this suggestion. Thanks.

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Explain keyboard not found

by TheChas In reply to Explain keyboard not foun ...

If you have been plugging and un-plugging the keyboard with power on, both the keyboard and PS/2 port hardware may be damaged.

If your BIOS supports USB keyboards, that may be your only practical option.

Make sure to enable USB legacy support in BIOS settings before switching to a USB keyboard.

Your other option, is to replace the motherboard.

Chas

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