P4XFCU capacitor burn out and relpacement.

MagnusMoore6

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Jan 12, 2007
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All the capacitors around the cpu on my motherboard are damaged and on the verge of bursting...
I am going to replace them by soldering in new ones, any advice on this?

Also does anyone know why they are damaged in the first place? Is it due to heat from the cpu? Or is it because they are set to withstand too low a voltage because they are 1500microfarad 6.3V capacitors should i replace them with ones which can tolerate higher voltages?

Please please only reply if you have understanding.
Thanks in advance.
Magnus
 

MagnusMoore6

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Jan 12, 2007
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Ah perfect that was exactly what i was looking for, but as my english isnt too good was having some trouble finding it.

Thank you so much!
 
That is a Jetway brand board? Never heard of them.

Without measuring the voltage at the capacitors (caps) there is no way of knowing if you need a higher voltage rating. And while heat from the CPU could be a factor, I would suspect poor components as the most likely cause of failure.

Now, while I admit I have repaired mother boards in the past (I'm an FCC licensed radio tech), it is not something that you should consider unless you are VERY good at un-soldering and soldering on multilayer boards. But you are still going to try, aren't you?

OK, the trickiest part is un-soldering the old caps. If you are VERY careful you can use a solder gun (instant heat 100-200 watt) to quickly melt the solder while pulling the cap off the board. But to be more careful you can use the 25-30 watt pencil soldering iron that you will need to solder the news caps. The holes may still have solder in them after you are done, and you can either use a heated clean copper wire to open up the holes or use a hand drill. I prefer the hand drill since each time you heat up the board there is deterioration.

Oh, and make sure you mark the positive leads to the caps because you will not be happy if you get one installed backwards and it explodes!!
 

MagnusMoore6

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I think its an ASUS board not 100% sure... it may be something else. Not to bothered really the problem is still the same.
I am very experienced at soldering so that shouldnt be too much of a problem.
And either way it doesnt matter because at the moment i have a board that doesnt work, and if i mess it up i still will have a board that doesnt work :lol:
Also its an old board not a new one i wouldnt risk it on my nice new computer but this one really doesnt matter, if i break it ill just take the harddrive cd drives dvd drives everything i can from it and put it in my new computer.
No loss.
Thanks for all the help.