Go Back   TechArena Community > Hardware > Portable Devices
Become a Member!
Forgot your username/password?
Register Tags Active Topics RSS Search Mark Forums Read

Sponsored Links



Compaq CQ56 black screen and only caps lock light blinks

Portable Devices


Reply
 
Thread Tools Search this Thread
  #1  
Old 03-03-2012
Member
 
Join Date: Dec 2011
Posts: 125
Compaq CQ56 black screen and only caps lock light blinks
  

My Compaq CQ56 never created any issue from the time I have bought it. But two days ago when I was browsing my laptop suddenly donít know why the system got freeze, believing that it could be due to some minor issue I just turned off the machine directly. But then later on when I restarted the system it started up with a blank screen and then it continued. Not just the blank screen but also the caps lock light on the keyboard was continuously blinking.

Nothing is fine after I start the system, tried most of the thing but canít see anything, I am sure that the system is on and working. Can anyone help me out?

Reply With Quote
  #2  
Old 03-03-2012
Member
 
Join Date: May 2011
Posts: 1,125
Re: Compaq CQ56 black screen and only caps lock light blinks

I am not sure but most of the time this trick works whenever the system shows the above unusual symptoms, especially the blank screen issue. Just try out the following thing, hope so it will work.
  • Shutdown the system
  • Remove the AC adapter
  • Remove the battery
  • Hold down the power button for few seconds
  • Insert the AC adapter
  • See whether the laptop starts or not
Reply With Quote
  #3  
Old 03-03-2012
Member
 
Join Date: Dec 2011
Posts: 104
Re: Compaq CQ56 black screen and only caps lock light blinks

Same issue with same symptoms, but my problem started off suddenly once when I was trying to start up the machine. Whenever I start the system I can see the orange start up screen but then it only show the starting windows and then everything is as usual blank.

I also tried to access the BIOS on the occasional successful orange screen but it failed and again showed the blank screen. I also tried the above step which somehow helped me a bit, it helped boot the system but that too worked only till the starting windows screen after that the same thing.

I have also tried to reset the Ram and other internal elements.
Reply With Quote
  #4  
Old 03-03-2012
Member
 
Join Date: May 2011
Posts: 1,924
Re: Compaq CQ56 black screen and only caps lock light blinks

I can help you out with the exact solution but I can somehow help you in letting know about the exact cause or maybe also it can take you an appropriate solution.

The first thing you need to do is to shutdown the system if itís on, as soon as then now start the laptop tap the F10 button. I hope you can now enter the BIOS menu. Now under the Advanced and Diagnostic tab you should most probably be able to find the capability to run the test on both the hard drive and the Memory. Make sure that this test runs and if does so then please try to post back the details and the log information and also the error message you encounter. This information is for sure going to help you know the main cause of the issue.
Reply With Quote
  #5  
Old 03-03-2012
Member
 
Join Date: Jun 2011
Posts: 1,993
Re: Compaq CQ56 black screen and only caps lock light blinks

Light blinking on either of the power button or the caps lock maybe due to the internal hardware issue, I mean the Ram. If you have 2 Ram module installed in your system then make sure that you remove one of them and then try to reboot the machine.

Having just 1 Ram installed in the machine has to do a bit different thing, you just have to remove the Ram from the existing slot and then fix it in the other available slot and if that didnít help you then repeat the process with the other module. Make sure that you try out all the possible combination and try to check whether any of them makes any difference.
Reply With Quote
  #6  
Old 03-03-2012
Member
 
Join Date: Jul 2011
Posts: 2,006
Re: Compaq CQ56 black screen and only caps lock light blinks

The blinking of the Led lights present on the power button and the other parts of the keyboard on the new system or the beep tones on the old machine is undoubtedly an issue with any of the hardware component of the machine. This thing occurs due to the improper response of the hardware components.

And also would like to tell you that the blink and the beep codes for each of the models differs and also the users cannot change any of the blink and beep codes.
Reply With Quote
  #7  
Old 03-03-2012
Member
 
Join Date: Jul 2011
Posts: 1,781
Re: Compaq CQ56 black screen and only caps lock light blinks

Quote:
And also would like to tell you that the blink and the beep codes for each of the models differs and also the users cannot change any of the blink and beep codes.
The blink codes are most of the time displayed only after the user tries to add extra memory to the system but it does not held or placed the module properly. Just because the system was dropped the Led may also blink error codes if any of the hardware components is loosely connected. There are some of the HP notebook PCs that comes with one stick of Ram but most probably have two slots. The issue could be undoubtedly the bad connection between the stick of the memory and one of the slots of that memory.
Reply With Quote
  #8  
Old 04-03-2012
Member
 
Join Date: Jul 2011
Posts: 1,566
Re: Compaq CQ56 black screen and only caps lock light blinks

The solution for this issue is very much simple and clear. If your memory moudel is possibly not making a good contact with the memory slots and if the computer is unable to recognize all of the memory, definitely resetting the memory module may undoubtedly resolve the memory failure errors. The memory module compartments on almost all the notebooks is located on the bottom of the case and in some of them its under the keyboard.

You need to just follow the below steps to remove and reset the memory modules:
Remove the electrical power:-
  • Turn off the computer by pressing and holding down the Power button for about 30 seconds
  • Unplug the AC adaptor from the notebook
  • Slide and hold the battery release latch to the unlock position
  • Use your finger to lift the battery up and out

Remove the Memory module:-
  • Remove the memory module cover
  • Remove the memory modules from the memory slots
  • Reseat the memory module by holding module at a 45-degree angle
  • After reseating the memory module, replace the cover over the memory compartment
Reply With Quote
Reply

  TechArena Community > Hardware > Portable Devices
Tags: , , , , ,



Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads for: "Compaq CQ56 black screen and only caps lock light blinks"
Thread Thread Starter Forum Replies Last Post
HP Pavilion dv4 not getting charged only Scroll/Num Lock and Caps Lock LED's blinking Pillars Portable Devices 5 31-01-2012 09:06 PM
Issue with Dinovo Mini backslash, caps lock and num lock keys Jarini Hardware Peripherals 7 02-11-2010 02:27 AM
Set warning sound for Caps lock,Num lock in Windows 7 rajmalhotra Operating Systems 3 13-05-2009 02:49 PM
Notification area/ How to get rid of Caps Lock, Scroll Lock Heidi Vista Help 4 27-03-2009 06:46 PM
Vista WMC Full Screen Black Screen Blinks rATANJOT MediaCenter 1 13-05-2007 08:49 AM


All times are GMT +5.5. The time now is 07:57 PM.