motherboard repair

jarvis1227 · 06-10-2009, 04:16 PM

Installing a sound card i accidentially broke off a Mini Electrolytic Capacitor on my motherboard. The computer boots and runs fine but i'd like to reinstall the capacitor. its a surface mount exactly like in this picture

i was thinking maybe a tiny bit of that conductive wire glue they sell? This thig is way to small to solder. plus the feet look like they rest on the motherboard, not go thru it.

Thanks

tedmich · 06-10-2009, 05:19 PM

should work with a good silver epoxy. Soldering is a terror on MBs; careful not to F*up something else while "fixing" this, a VERY common event with MB's IME. (Its polarized so be sure of the original orientation!)

Brad1 · 06-18-2009, 03:43 PM

10uF, 16V? Perhaps replace with a small radial cap, so you can tack it onto the board more easily? Maybe? If you can bend it out of the way?

Just a thought.

Brad1

jarvis1227 · 06-18-2009, 03:49 PM

all fixed. i actually used wire glue. i used a tooth pick to put tiny little dabs on the feet, CAREFULLY put it back on the motherboard being sure polarity was mantained and let it dry overnight. done. thanks for the replies.

Don Moose · 06-19-2009, 03:41 AM

With the frequencies on modern motherboards (think current surges as those multi-million-transistor devices make a major state change), leads can be a problem.

Decoupling has become a hierarchy, and the 'lytics are the slowest, but the ESR and ESL do have to be accounted for.

06-10-2009, 04:16 PM	#1
jarvis1227 Junior Member Join Date: May 2009 Posts: 4	motherboard repair Installing a sound card i accidentially broke off a Mini Electrolytic Capacitor on my motherboard. The computer boots and runs fine but i'd like to reinstall the capacitor. its a surface mount exactly like in this picture i was thinking maybe a tiny bit of that conductive wire glue they sell? This thig is way to small to solder. plus the feet look like they rest on the motherboard, not go thru it. Thanks

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06-10-2009, 05:19 PM	#2
tedmich Senior Member Join Date: Apr 2008 Location: PDX Posts: 500	should work with a good silver epoxy. Soldering is a terror on MBs; careful not to F*up something else while "fixing" this, a VERY common event with MB's IME. (Its polarized so be sure of the original orientation!)

06-18-2009, 03:43 PM	#3
Brad1 Senior Member Join Date: Jun 2006 Posts: 231	10uF, 16V? Perhaps replace with a small radial cap, so you can tack it onto the board more easily? Maybe? If you can bend it out of the way? Just a thought. Brad1

06-18-2009, 03:49 PM	#4
jarvis1227 Junior Member Join Date: May 2009 Posts: 4	all fixed. i actually used wire glue. i used a tooth pick to put tiny little dabs on the feet, CAREFULLY put it back on the motherboard being sure polarity was mantained and let it dry overnight. done. thanks for the replies.

06-19-2009, 03:41 AM	#5
Don Moose Senior Member Join Date: Jul 2007 Location: Indianapolis Posts: 676	With the frequencies on modern motherboards (think current surges as those multi-million-transistor devices make a major state change), leads can be a problem. Decoupling has become a hierarchy, and the 'lytics are the slowest, but the ESR and ESL do have to be accounted for.

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