Compaq Evo N1015v Keyboard Intermittent Problem

Hi All,

I have a Compaq Evo N1015v laptop with an AMD AthlonXP proc. and Win XP SP2 installed.

My problem is that the keys on the keyboard stop working intermittently.
Keys that do not work - 4,5,r,t,f,g,v,b and the left side windows key.

Sometimes these keys just stop working when I am typing something and then start working all of a sudden. I do not want my laptop suddenly freezing up. Any help would be appreciated.

I have already updated the system BIOS to the latest version and the keyboard controller firmware also that was available on the HP website.

Thank You.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

This looks like a defective keyboard. If your notebook is still under warranty, get it repaired for warranty, otherwise try to get a new keyboard. You can also try removing the keyboard and then use a can of compressed air to clean it out, and make sure the cables where it connects to the mainboard are attached properly
ChaitanyaKhaladkarAuthor Commented:
Hi rindi,

The laptop is not under warranty. The keyboard has already been replaced once for this laptop. The guys at the support centre are unable to pin-point the exact cause of the problem; their suggestion being to replace the motherboard. I'm not sure how effective that is.
Can I try something myself?
Just to make sure if this is hard or software, get a knoppix CD and boot with that, then use the PC with knoppix and find out if the problem persists.
Learn SQL Server Core 2016

This course will introduce you to SQL Server Core 2016, as well as teach you about SSMS, data tools, installation, server configuration, using Management Studio, and writing and executing queries.

You may also try an external keyboard for confirmation of the problem.
ChaitanyaKhaladkarAuthor Commented:
Hi sparkmaker,

I tried using an external keyboard. It works fine with the external keyboard.
Do the F3 & F3 keys also work intermittant. Tracing the line back to the keyboard ribbon cable I find those keys are also associated. Your right hand "ALT" key should have the same problem too. Check the ribbon cable at both ends for connection. Pull the ribbon and inspect the contacts. Make sure it is seated well inside the ZIF socket. Look for abbrasions that have worn thru the ribbon contacts. Clean the contacts with an alcahol wipe.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
ChaitanyaKhaladkarAuthor Commented:

Thanks for all your help.

I think rindi's suggestion of cleaning the keyboard and ddrdan's suggestion of cleaning the contacts helped. It's been a day and the keyboard is still working!

Thank You.
your welcome
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Laptops Notebooks

From novice to tech pro — start learning today.