Motherboard ASRock came back to life

By on February 12, 2015
motherboard repair

 

 

 

 

 

 

 

 

 

The Motherboard of this story is an ASRock KBNF4G-SATA2 and was brought to me from a co-worker; he came very desperate because it was out of order: no video out.

motherboard repair1

Let’s have a look first, I told him.

motherboard repair2

When it was checked on, guess what?

Five bulged e-caps were seen

motherboard repairmotherboard repair4

The five bulged e-caps were de-soldered from the circuit: 3300µF/6.3v.

motherboard repair5

They were substituted for similar, and when the Motherboard was turned on, look at the result below:

 motherboard repair6

As you can see the Motherboard was saved from the dump. Mission accomplished.

humbert

 

 

 

 

 

 

 

 

 

 

 

 

 

This article was prepared for you by Humberto Rodriguez, one of our ‘Master Authors’ from Cuba.

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Likes(179)Dislikes(4)

19 Comments

  1. Yogesh Panchal

    February 12, 2015 at 11:06 pm

    Congratulations! Humberto.

    Likes(1)Dislikes(0)
    • Humberto

      February 16, 2015 at 10:41 pm

      Thanks Yogesh

      Likes(0)Dislikes(0)
  2. edd

    February 12, 2015 at 11:51 pm

    superb, thats the thing

    Likes(2)Dislikes(0)
  3. Merlin Marquardt

    February 13, 2015 at 12:51 am

    Bad caps. Good job.

    Likes(1)Dislikes(0)
  4. Robert Calk

    February 13, 2015 at 2:37 am

    Good job Humberto. Thanks for the article.

    Likes(2)Dislikes(0)
    • Humberto

      February 16, 2015 at 10:43 pm

      Thanks Robert.

      Likes(1)Dislikes(0)
  5. Peter

    February 13, 2015 at 3:33 am

    Hi,

    Nice article. I have done this kind of repairing the motherboard many time. I also change the cap, but if you didn't change all the cap the customer will come back to you soon because also the other cap will be blown.

    Best regards, Peter

    Likes(4)Dislikes(0)
    • Humberto

      February 16, 2015 at 10:45 pm

      Well Peter, I use to check on all the e-caps with the Blue ESR Meter, then I only change those which have high ESR.

      Likes(1)Dislikes(0)
  6. peter

    February 13, 2015 at 5:07 am

    So much to go wrong on any MB.
    Here you were rewarded for having a go at repair.
    I guess a repair does not get much simpler that replacing bulged caps.
    Well done!

    Likes(1)Dislikes(0)
  7. Andre Gopee

    February 13, 2015 at 8:09 am

    Nice Job Humberto.. A definite give away those e-caps. Keep up the good work.

    Likes(1)Dislikes(0)
    • Humberto

      February 16, 2015 at 10:47 pm

      Ok, you are right Andre Gopee

      Likes(1)Dislikes(0)
  8. Florin

    February 13, 2015 at 11:09 am

    Mr. Humberto Rodriguez,
    Why are you using a FAKE photo of yourself ? Anyone can see your legs don't cast a shadow on the floor, like the legs of the table do. You look like floating above the floor like a ghost. The only real thing in that photo made in Photoshop is your face. The body isn't yours, nor the clothes, nor the house. It is not a shame to be poor, as long as you're honest. Everybody knows you don't get rich repairing cheap ASROCK motherboards...

    Likes(1)Dislikes(1)
    • Humberto

      March 3, 2015 at 10:24 pm

      Ok Florin, UR right. Thanks

      Likes(1)Dislikes(0)
  9. Corriete

    February 13, 2015 at 7:50 pm

    while that is true to change other caps so that the customer doesn't return soon, would the customer be happy to pay the extra charge?i hope so.
    good job of saving from the dump.

    Likes(1)Dislikes(0)
    • Humberto

      February 16, 2015 at 10:48 pm

      Thanks Corriete, you are 100% right

      Likes(1)Dislikes(0)
  10. mobydick

    February 15, 2015 at 4:10 pm

    hard to find a similar type capacitor

    Likes(1)Dislikes(0)
    • Humberto

      February 16, 2015 at 10:51 pm

      Well mobydick, I think is not too difficult to get some similar e-caps.

      Likes(0)Dislikes(0)
  11. tana

    February 16, 2015 at 10:04 pm

    Thanks,Humberto,I have a motherboard with a few capacitors bulging and waiting for repairs .Please tell me how you go about removing it. I am not good at it .

    Thank you,
    Tana.

    Likes(0)Dislikes(0)
    • Humberto

      February 17, 2015 at 9:08 pm

      Well, I remove these e-caps with a soldering iron of 40 watts. For connect the new ones you have to clean the holes in the Motherboard, I use a steel wire (the tin does not fix on it), and then introduce the pins of the capacitor and weld it with fresh tin.

      Note: I recommend to test the ESR of the new caps with the Blue ESR Meter or similar

      Likes(0)Dislikes(0)

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