Laptop screen remains black and fan runs at full speed
Problem description:
When the laptop is turned on, the screen remains completely black/blank and the cooling fan starts running at full speed. The fan runs at unusually high RPM until you power down the laptop.
Possible cause:
Motherboard failure.
Possible troubleshooting steps and repair solution:
Most likley this problem is related to the motherboard failure and the motherboard has to be replaced.
Reader's Comments
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When the laptop is turned on, the screen remains completely black/blank and the cooling fan not working.
dell xps m1210
rashed,
Did you have a chance to test the laptop with an external monitor attached to the VGA port? Can you get video on the external monitor?
First of all, I would check memory modules. It’s possible that one of the modules failed.
1. Try reconnecting memory modules. Remove them from the motherboard and install back in.
2. Test your laptop with each module installed separately. If one of them is faulty, the laptop will start when the bad module is removed.
hey i use a hp dv2703tx laptop.i had blue screen of death problem and it was showing message display driver not working message and rebooted..and then same problem persisted..then i uninstalled windows vista and installed windows 7…bt now the problem is that i get discolorations on the screen with various line color patterns..till recently i had this problem..but then i tried reinstaling windows 7..the installation didnt happen successfully and now i have a laptop with no display…bt it powers up as i see bright screen when plugged in..please help me resolve this..
shripati,
Most likely this is a known VGA chip failure. This is a common problem with HP Pavilion dv2000/dv6000/dv9000 series laptops. HP knows about this failure and there is a chance you can get a free repair from HP, if your laptop qualifies. Take a look at this page:
http://www.insidemylaptop.com/free-repair-hp-pavilion-compaq-presario-laptops-out-of-warranty/
Call HP and find out if your laptop qualifies for a free repair. If not, you’ll have to replace the motherboard or try fixing the motherboard.
Recently I had a similar laptop Compaq Presario v6000 with the video chip failure. I baked the motherboard in the oven and it fixed the problem, at least for now.
http://www.laptoprepair101.com/laptop/2010/04/06/fixing-compaq-presario-v6000-motherboard-no-video-issue/
Proceed at your own risk. You can destroy the laptop if you decide to fix it yourself.
Hi,
I have a Toshiba M400 laptop with Ubuntu 10.4 installed. I had a problem about “blinking” and “fan runs at full speed”, but last week this situation had been occurring sometimes. However, now I couldn’t manage to boot.
I suppose that the existence of this problem is due to the broken anti shock sensor. So in order to solve (or probably solve booting problem), I need to know how to disable shock sensor from motherboard.
Thanks for your help.
sir
how to repair laptop motherboard . what are the tools required for repairing of laptop motherboard. i will glad if you tell me as i am having many laptop with faulty motherboard
vishal j,
Forget about it. If you have a failed motherboard, you’ll have to replace it with a new one.
ce,
No boot and fan runs full speed? Sounds like motherboard failure. I’ve seen it happening before with Toshiba laptops.
Just in case, try removing RAM modules one by one. Test the laptop with each module separately. If it doesn’t help, probably it’s bad motherboard.
PLZZ HELP ME MY LOP TOP IS DNT WORKING when i open it the lop top dont seem to open its still blank and the cooling fan is not moving at all plzz help me plzz wat should i do?plzz answer me
gerard,
It’s hard to tell what is going on without testing the laptop.
Does the laptop have any LED lights when the AC adapter plugged?
First of all try reseating memory modules. If you have two memory modules, try removing them one by one. It could be memory failure.
Laptop screen remains blank no boot sound or anything. The Laptop fan starts, the power button light comes on, the cd tray opens. Nothing else works. What could be the possible problems, where can I look? Compaq Presario
Donald,
This could be memory related failure. Try removing memory modules one at a time. Test your laptop with each memory module individually. One of the modules could be bad.
hi, i bought a dell laptop a year back and im facing this random screen blackout problem since 6 months…its a recurring problem as it happens for 4-5 days and then automatically pauses for some days i contacted dell they sent me driver but it didnt work and then they told me to reinstall my OS…but THAT DIDNT HELP EITHER
lately it just happened that while this problem occured my lappy wont start and when i pressed the power button “startup repair” would start and then it wud say windows is unable to repair so click finish to shut down!
i contacted repair centre and he formatted my lappy for rs.500 and told that the problem was probably due to dust and he has settld it so it wont occur again…BUT it occured gain the same day…this time i noticed that while it occered the laptop was hot after working 1.5hrs and its fan waas not working…in short im pissed and WANT THIS PROBLEM TO GO!!
My problem:
My Toshiba M400 (PPM40C-1200TE) recently started to perform poorly, lagging, getting stuck, and occasionally randomly restarting. Other times, the screen would just black out, fan would blast, and the power light would blink orange regularly.
Although I didn’t realize it at first, the restarts/blackouts would happen whenever I moved the laptop. Hmm, that’s familiar cz whenever I moved the laptop before, the laptop would have for about 1 sec, but continue smoothly where it left off. This is due to Toshiba’s HDD Protection (basically, the HD r/w head locks up whenever the laptop moves to prevent HD damage).
I’m guessing that recently, the sensor / accelerometer went bad and became oversensitive. This could explain the general lagginess (HDD keeps locks up), and the more severe restarts/blackouts.
Solution:
Start -> Programs -> Toshiba -> Utilities -> HDD Protection Utility: Disable
If you don’t have the utility, you can grab it from the Toshiba drivers website.
- I’ve read about users having this issue even after reinstalling their OS. That probably wouldn’t solve the problem because the HDD Protection mechanism is built into the hardware, and unless you disable it through the Toshiba utility, even reinstalling OS won’t help.
I have been using Toshiba M400 and after some months of use it developed a problem, couldn’t start freezes and fans runs high speed and LED blinks. To apply some pressure around 78 HJ keys and then start!… (ii)Tighten the nuts at the bottom of the Laptop and try….. Any suggestion on solving the problem will be appreciated.