Announcement

Collapse
No announcement yet.

Knocked over ceramic smt caps on Asus NCCH-DL

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    Knocked over ceramic smt caps on Asus NCCH-DL

    Hello!

    Got a used Asus NCCH-DL fairly cheap and installed it a bit too hastily. The CPU heatsink support thingy that goes under the Mobo got a bit off place (the glue wasn't in topshape anymore and it was a bit warped). Only the voltage unstable and power led lighted up, no post. After investigation I found a ceramic cap missing near one of the heatsinksupportthingy-holes and at the lower hole one a bit loose from one end. Later I found the missing cap on my floor.

    Any suggestions? Borrowed a solderingiron with a about 2mm flat tip (can't remember exact wattage but should be 45-60W) from a friends father. Never soldered anything this small before (and not since an electronics course in school when 17-18 years old). And I've got a fairly UNstable hand.

    Is it al lost cause? Can't really afford putting any real money on this atm.

    I'll be able to post a bit more details when I'm at my apartment.

    Thanks for any help!
    Tags: None
    #2
    Re: Knocked over ceramic smt caps on Asus NCCH-DL

    That soldering iron is a bit large, I'd suggest something in the 15-25 watt range myself. That tip seems a little big, too. I wouldn't even suggest trying it until I had an appropriate iron available. Proposed steps:

    Remove motherboard from the case.

    Examine motherboard carefully for any signs of damage using a good magnifier and plenty of light.

    Examine the cap you found on the floor. Are the ends intact?

    If everything is OK at this point, place gentle pressure (use a small piece of wood) on the cap that is partially soldered and heat the soldered end until the solder flows. Quickly solder the other end. Add a LITTLE solder if necessary.

    Using the solder iron remove as much of the solder as possible from the lands for the other cap. (Solder wick will help).

    Place the cap back in position. With one hand hold it in place (using the stick again). With the other hand heat one end. And with the OTHER hand, apply a small amount of solder. (If you're not a Motie, get someone to provide the third hand). Repeat on the other end.

    Now that you've celebrated, test the motherboard.

    After you do this a few hundred times you will become quite skilled at it.

    PlainBill
    For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

    Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

    Comment

      #3
      Re: Knocked over ceramic smt caps on Asus NCCH-DL

      Thanks!

      The iron is 40w, I thougt bigger is better. I might manage to find a smaller.
      Motherboard seems OK, the cap looks OK.

      Good thing I've got a lot of junk cards and mobos to practice on.

      Comment

      Previous template Next
      Working...
      X