Solved

HP Compaq Presario CQ50 black screen

Posted on 2012-03-13
6
895 Views
Last Modified: 2012-03-13
Hello Experts,
I need your help because I'm in big trouble. I was asked by one friend of mine to reinstalled Windows and to clean up heatsink fan as his laptop is going off in 2-3 mins because of overheating. I upgraded current Windows Vista to Win 7 Pro, dessambled the laptop, cleaned up heatsink fan, put thermal compound between cpu, nVidia chip and heatsink, plugged all disconnected cables back into the motherboard (I checked out everything twice), then turned the laptop on and as outcome nothing is coming up on the screen (black screen and no windows logo). the power light is on, hdd light is on, wireless light is on, all the lights are on but the screen is still black. I'm sure as I checked all cables twice and evrything is connected properly. Something wrong with the screen or screen's inverter.
What am I missing?
Where else to look into?
This happened to me so the fault is mine and I have to sort it out.
Laptop model is HP Compaq Presario CQ50 with Win 7 Pro.

Please any advice will be appreciated!

Thank you in advanced!
0
Comment
Question by:nasolsi
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2
6 Comments
 
LVL 30

Expert Comment

by:ded9
ID: 37713777
Do you hear POST beep and can you get in the bios???



Ded9
0
 

Author Comment

by:nasolsi
ID: 37713867
Hi,
sorry I missed to mention it but no POST beep and I cannot get into BIOS either.
0
 
LVL 30

Accepted Solution

by:
ded9 earned 350 total points
ID: 37713893
POST beep is imp ...this mean the hardware is not working or not connected properly...reseat ram , video card, etc ..make sure they are properly connected.

Also remove the bios battery ...wait for 15 minuts and then connect it.



Ded9
0
Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

 

Author Comment

by:nasolsi
ID: 37713965
Hi again ded9,
I've done everything as reseated ram at least twice, removed BIOS battery at least twice for more than 15 mins and still nothing. I've only removed old compound from NVidia chip and put new one. The same I done for CPU. I'm sure that everything is connected properly as I dissambled it twice to check out the connections.
0
 

Author Comment

by:nasolsi
ID: 37714190
Hi ded9,
I fixed it already. It was my fault. I reseated ram and now it is working like brand new.
You deserve all the points.
Thank you once again!
0
 

Author Closing Comment

by:nasolsi
ID: 37714200
Reseating ram made it working again.
0

Featured Post

Connect further...control easier

With the ATEN CE624, you can now enjoy a high-quality visual experience powered by HDBaseT technology and the convenience of a single Cat6 cable to transmit uncompressed video with zero latency and multi-streaming for dual-view applications where remote access is required.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Great sound, comfort and fit, excellent build quality, versatility, compatibility. These are just some of the many reasons for choosing a headset from Sennheiser.
The Windows functions GetTickCount and timeGetTime retrieve the number of milliseconds since the system was started. However, the value is stored in a DWORD, which means that it wraps around to zero every 49.7 days. This article shows how to solve t…
This Micro Tutorial will teach you how to the overview of Microsoft Security Essentials. This is a free anti-virus software that guards your PC against viruses, spyware, worms, and other malicious software. This will be demonstrated using Windows…
This Micro Tutorial will give you basic overview of the control panel section on Windows 7. It will depth in Network and Internet, Hardware and Sound, etc. This will be demonstrated using Windows 7 operating system.

697 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question