Solved Capacitors on motherboard corroding!!!

Dell Optiplex gx270 sff desktop
May 23, 2011 at 17:09:49
Specs: Windows XP Home Edition, Intel Pentium 4 With 4 Gigabytes RAM
I have a Dell Optiplex GX270 Slimline version. So the other day I opened up the computer and saw that 4 capacitors directly attached to the motherboard had this brown stuff on them. It could be taken off by finger, but this gets my worried. Is it corrosion, or something else? I have been starting to notice problems with the computer like it heats up much faster than normal (you can hear the fans speeding up already just booting it up). I'm wondering how much more time my computer has left on it. Should I backup my files and stuff. I have a backup Dell Dimension 8300 to use, but I'd prefer to use this computer as long as it can last. Is this problem serious and should I stop using the Optiplex?

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#1
May 23, 2011 at 18:08:04
✔ Best Answer
Yes the caps are going.....back up now. I would run it till it dies but in the mean time look for a new mb.

It has been some time but I saw some (mother boards) on ebay for under $35.00

Ebay is buyer beware but there are reputable dealers there.

I am leary of the reconditioned boards.


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#2
May 23, 2011 at 19:04:51
Thanks for letting me know. I have backed up my entire drive and have it ready to go when my computer dies.

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#3
May 23, 2011 at 20:05:47
If you follow the guidelines for electrical repair and static control, with the proper equipment, the caps can be replaced and the pc runs just fine.
De-solder the old caps, carefully clean the board socket, insert the new ones and solder. They are polarized plus and minus, like a battery. If you get them in backwards, they could explode, like a battery.

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#4
May 24, 2011 at 05:44:50
The problem with this is that most capacitor failures have no visible signs. In addition to those that are visibly leaking there are likely more that have failed already or are likely to fail in the near future. Unless you have the required skills and equipment a successful repair is unlikely. I know this from many years servicing electronic equipment.


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#5
May 24, 2011 at 12:51:54
You can't tell. It could be that waterless flux is what you see.

1/3 of highway deaths are caused by drunks. The rest are by people who can't drive any better than a drunk.


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