Recapping Blunders: Mea Culpa

[bigbeark]

Well, I trashed my IBM Socket 478 board. Cause: Impatience. I Had removed a cap, but one leg separated from the cap and remain lodged in the board. Rather than applying some new solder to the offending pin, I stupidly pushed on the protruding pin with the tip of the iron, as it seemed to be "almost" free.

Predictably the iron slipped and exposed a trace. Bloody thin coatings on these newer boards.

Only previous board I wrecked was an Asus P2B-S. I was attempting the bridging of the two Socket 1 pins that allows Coppermines to be fitted to certain BX440 boards.
Worked great on a P2B-DS v1.04, so I tried it on this board. Managed to bend one of the
pins inside the Slot, touched another pin and POOF.

On the other hand, I have successfully recapped maybe a dozen other boards, probably a dozen or so sound cards and some video cards so it could be worse.

Lesson learned - be Patient at all times and don't work when you are tired or pressed for time.

[seanc]

Re: Recapping Blunders: Mea Culpa

Have you tried the board anyway, it may hang on.

I thought I'd killed by IBM x206 when I was trying to solder the clip for the northbridge on, it's still going (with a few more Panasonic FM too)

[goodpsusearch]

Re: Recapping Blunders: Mea Culpa

Lesson learned - be Patient at all times and don't work when you are tired or pressed for time.

I keep on telling that to myself but I fail to follow it..

[ratdude747]

Re: Recapping Blunders: Mea Culpa

solder a wire from the two points connected by the trace if you can... it sometimes works...

[retiredcaps]

Re: Recapping Blunders: Mea Culpa

Rather than applying some new solder to the offending pin, I stupidly pushed on the protruding pin with the tip of the iron, as it seemed to be "almost" free.

Predictably the iron slipped and exposed a trace. Bloody thin coatings on these newer boards.

Lesson learned - be Patient at all times and don't work when you are tired or pressed for time.

I'm glad I read this today. I decided to add some more DRAM into my computer today. I opened up the case and noticed 3 Teapo 1000uF 6.3V caps had bloated sometime since April 2010 when I last had the case open.

The Teapos are SM 105C 2002/09 A3 (originals from the computer). Luckily, I had ordered some extra 1000uF 16V Rubycon caps and used them as replacements.

I had 6 out of 6 clean holes or so I thought when I desoldered the old caps using the desolder pump. One hole was supertight so I added a bit more solder and it made it worse. I tried once more with adding solder and it still didn't work. I was going to apply more heat, but thought better of it since I managed to dislodge solder pads in the past and your post was fresh in my mind.

So I got a bobby pin, heated it up, and managed to get a hole big enough for the lead to fit through.

Sometimes the mea culpas in addition to the success stories are just as important.

[bigbeark]

Re: Recapping Blunders: Mea Culpa

Have you tried the board anyway, it may hang on.

I thought I'd killed by IBM x206 when I was trying to solder the clip for the northbridge on, it's still going (with a few more Panasonic FM too)

As soon as I turn on the PSU switch the board starts itself up, both fans roaring like crazy, but no post. I suspect it's detecting overheating/short. Normal operation of this board is the fan ramps itself up when it gets hot - "fireball" Prescott CPU.

[seanc]

Re: Recapping Blunders: Mea Culpa

Hmm, as mentioned by ratdude, can you try jumping the trace with a piece of wire? Is the trace really fine?

I had to do this with a Gigabyte board which had been shorted by it's previous owner. Burned trace and shorted mosfet. All working now.

[Agent24]

Re: Recapping Blunders: Mea Culpa

I've had 2 boards where traces have burnt, one due to a bad USB device and one where the motherboard standoffs were wrong.

In both cases everything worked fine after replacing the burnt track with wire.

[bigbeark]

Re: Recapping Blunders: Mea Culpa

Hmm, as mentioned by ratdude, can you try jumping the trace with a piece of wire? Is the trace really fine?

I had to do this with a Gigabyte board which had been shorted by it's previous owner. Burned trace and shorted mosfet. All working now.

The trace is REALLY fine wire. I will need a magnifier of some sort to see the joint well enough to do the repair.

As I don't have one of those on hand, I've left the project hanging for the moment.