Jump to content

- - - - -

My PC won't boot up sometimes, what should I do?

  • Please log in to reply
7 replies to this topic

#1 kienthucnet



  • New Members
  • 1 posts

Posted 6 October 2015 - 09:17 AM

I've been pretty worried about my computer's health lately since it Blue Screened that it had a missing/corrupt kernel and it's been acting up even before that. Everytime I try to turn it on, the monitor just shows a "no signal" sign and a black screen afterwards. It usually turns on after 2 or 3 resets. I'm not quite sure if it's a monitor, VGA cable, or a motherboard (since I don't have a dedicated GPU) issue. What should I do? 

Here are the specs of my PC:
Processor: Intel Core 2 Duo E7400 2.8 GHz
3GB of RAM

Thanks in advance, guys!

  • 0

#2 studiot



  • Senior Members
  • 6,826 posts
  • LocationSomerset, England

Posted 6 October 2015 - 10:23 AM

Check for physical health first.


Clear the dust bunnies out, take out and reseat pluggable components and boards such as memory and Processor.

Replace processor heatsink compund.

Edited by studiot, 6 October 2015 - 10:52 AM.

  • 0

#3 Roamer



  • Senior Members
  • 152 posts

Posted 6 October 2015 - 10:41 AM

Reïnstall everything ?
It's something that needs to be done every now and then, just like the dust bunnies

  • 0

#4 Sensei



  • Senior Members
  • 3,354 posts

Posted 6 October 2015 - 12:15 PM

Check whether PSU has correct voltages in the right pins.

Starting after several tries (or after a while) suggest it might be cold solder joint, perhaps in PSU.


If you have spare PSU, connect it to see whether there is difference.

  • 0

#5 Externet



  • Senior Members
  • 1,548 posts
  • LocationMideast U.S.

Posted 6 October 2015 - 03:28 PM

Diagnose, diagnose, diagnose.


Get one of these, they are cheap enough, and been around for decades :


----> http://www.ebay.com/...Ads=&rmvSB=true


Or,  remove the hard drive, set aside unmolested and put another proven good hard drive (used, old or new) in the PC.  Better if with Linux operative system (free)


If failure persists or not, you discern being the hard drive/operative system, or the PC mainsomething/supply

Edited by Externet, 6 October 2015 - 03:36 PM.

  • 0
Abolish the deciBel !

#6 pwagen



  • Senior Members
  • 822 posts
  • LocationShire of Europe

Posted 6 October 2015 - 04:42 PM

Do any of the lights in the computer case light up? Do the fans start spinning? Any hard drive activity? "Doesn't turn on" is quite a broad subject.

  • 0
The above may be false.

pwagen get freaken name u another weirdo gay evil demon not a builder to lv frever creep


#7 MigL



  • Senior Members
  • 2,961 posts
  • LocationSt. Catharines, Ontario, Canada

Posted 19 October 2015 - 03:50 AM

If there's no signal to the monitor and no activity lights, the computer is not booting.

No sense checking any of the equipment like hard drive, memory, motherboard or processor ( yet ).


I have to agree with Sensei, the power supply is most likely old/weak and not setting a 'power good' signal.

First thing, try another power supply.

Doesn't have to be anything fancy if you're using integrated graphics, 400-450 watts should be more than plenty.

  • 0

#8 fiveworlds



  • Senior Members
  • 1,670 posts
  • LocationSomewhere on the internet

Posted 16 February 2016 - 01:08 PM

Got the same problem since this morning computer monitor won't start without restarting the computer. Everything else starts fine the speakers/keyboard and mouse. It is probably my graphics card I have had it for 8 years now and it was second hand when I got it.

Edited by fiveworlds, 16 February 2016 - 01:11 PM.

  • 0

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users