Computer Hope

Hardware => Hardware => Topic started by: buddyclm on February 29, 2012, 03:28:39 PM

Title: hp laptop keyboard not working
Post by: buddyclm on February 29, 2012, 03:28:39 PM

I have a HP Pavilion ze4300 laptop.  Everything was working normal and then one day I turned on the laptop and the computer keeps going straight into the system setup.  Once that screen opens I can't do anything, the keyboard doesn't work.  I plugged in a PS/2 keyboard and turn the computer back on, and it boots into Windows like it should.  I ordered a new keyboard for the laptop and when it came in, I installed it with the same results, booting straight into system setup and keyboard not working.  However, now, if I plug in an external keyboard, it only works about half the time now.  Does it sound like a bad motherboard or another issue?

Title: Re: hp laptop keyboard not working
Post by: Geek-9pm on February 29, 2012, 07:40:02 PM

No, it is the ribbon connector.

Title: Re: hp laptop keyboard not working
Post by: buddyclm on February 29, 2012, 09:38:23 PM

New keyboard came with new ribbon cable. Ps/2 keyboard doesn't use ribbon cable.

Title: Re: hp laptop keyboard not working
Post by: jason2074 on March 01, 2012, 09:55:13 PM

Quote

Does it sound like a bad motherboard or another issue?

Did you try going to BIOS utility setup when using a PS/2 keyboard and load defaults? Can you try replacing the CMOS battery?

Title: Re: hp laptop keyboard not working
Post by: buddyclm on March 02, 2012, 09:15:18 AM

I did reset the defaults in BIOS with the PS/2 keyboard and it didn't change anything.  I haven't replaced the CMOS battery

Title: Re: hp laptop keyboard not working
Post by: patio on March 02, 2012, 10:16:07 AM

With both 2 internals and 1 external only working 1/2 the time i'd certainly suspect the MBoard...
It can be tested at a shop but make sure to get a price 1st.