Recap gone bad

**stevo1210** · 08-25-2007, 08:30 PM

Re: Recap gone bad

I think it should still be OK, it it's only the pad that went, I'm pretty sure that there's still the Vias inside the damaged hole. From the pictures I can see that the solder is sticking down very nicely so I guess theres still foil inside the hole. So I think you are still lucky in getting your motherboard to work.

I had the same problem with my PC Partner motherboard a few months ago. I also damaged the soldering pads, but the vias was still OK and I put in new caps and it booted up well with no issues.

PC Partner board: https://www.badcaps.net/forum/showth...7&page=1&pp=20

About the continuity measurement, I'm not very sure about that, but I think the caps have to be in parallel to show a continuos connection. I better leave that part to others who know a bit more about the MM measuring techniques.

The scratch you mentioned doesn't look too bad in the picture. It hasn't scratched the traces near the caps, all it's scratched is some paint (or solder mask), so there probably won't be an issue. Look at my thread on the PC Partner board, it looks much worse with all the scratches around the caps, but it still works fine.

If you power it up and the vias is damaged, no it will not destroy any component, just make sure the cap you soldered isn't shorted due to excess solder etc. otherwise you might end up with a dead board and possibily some smoke. If the vias is damaged, your board will just simply turn on and have no POST or it may not even turn on at all.

Hope it all goes well for you in the end.

**Spacedye69** · 08-25-2007, 08:40 PM

Re: Recap gone bad

Before you fire it up, get some sort of video recording device. When it catches fire, I want to see!

HA! Just kidding. The worst you should get is no post or flaky board. Try it out.

**aphex** · 08-25-2007, 10:41 PM

Re: Recap gone bad

Thanks for your replies.
I just went out to buy a fire extinguisher.

I'm now more worried about the pad and adjacent PCB being connected together, but I'll try to power it up after I finish cleaning my keyboard.
I just spilled some coffee on my beloved Alps mechanical keyboard.

I guess today is my shit-happening day.
I'll let you know how it works.

Attached Files

**aphex** · 08-26-2007, 04:47 AM

Re: Recap gone bad

I tried it out and it worked well.
It went through 2 passes of Gold Memory and now running MemTest.

However, overclockability has been compromised somehow.
I have an Intel Pentium dual-core E2160 and it took 333 Mhz FSB (1000 Mhz for Hynix PC6400 DDR2 RAM) before recap, but now it won't boot at 300 MHz or higher.

Maybe I'll just stick with 299 MHz for now.

**stevo1210** · 08-27-2007, 02:54 AM

Re: Recap gone bad

Originally posted by aphex

I tried it out and it worked well.
It went through 2 passes of Gold Memory and now running MemTest.

However, overclockability has been compromised somehow.
I have an Intel Pentium dual-core E2160 and it took 333 Mhz FSB (1000 Mhz for Hynix PC6400 DDR2 RAM) before recap, but now it won't boot at 300 MHz or higher.

Maybe I'll just stick with 299 MHz for now.

Aphex, it's good to hear that you got it working correctly.

As to overlocking, I have no idea why you could overclock it higher before the recap....

I'll leave this for others to comment on. Personally, I've never had good luck at overclocking so I never do it.

**gonzo0815** · 08-27-2007, 03:30 AM

Re: Recap gone bad

May be your soldering wasn`t perfect. It is hard to get the solder flowing into the solder hole, like the factory process does.
This may affect OC may be.
On the other side, your cap choice is somehow not the best, may be those Samwha caps are not much better then what you removed from the board.

So i think if you are in overcloking, you certainly should have sourced some better caps like Panasonic FM, FC, Samxon GD GC or Rubycon MCZ, MBZ, may be ZL.
Those Evercon sure are bad and wouldn`t stand very long, but this does not mean, that their specs are bad.
I personally would have left the Evercon until they would show problems.

**aphex** · 08-27-2007, 08:56 AM

Re: Recap gone bad

Well, I was thinking about changing the caps later, but thought it would be too much work involved once I set my system up.

As for the capacitor choice, Japanese caps are too expensive and hard to find here in Korea. For example, Panasonic FC would cost about $4.00 each. Then it would cost me more than the board itself because I had to change 25 or so.

Maybe next time I can change some important capacitors with better ones but I don't have any idea which one is doing more important job.

**Newbie2** · 08-28-2007, 09:24 AM

Re: Recap gone bad

Originally posted by aphex

As for the capacitor choice, Japanese caps are too expensive and hard to find here in Korea. For example, Panasonic FC would cost about $4.00 each.

Big Pope here sells SAMXON caps, which are a little more economical than comparable Japanese capacitors.

**gonzo0815** · 08-28-2007, 04:14 PM

Re: Recap gone bad

It`s probably due to custom fees, or why are those Pannies that expensive.
So i think even those Samxon would not get in to the country as economically they are.

**Fizzycapola** · 08-29-2007, 05:34 AM

Re: Recap gone bad

@$$# happens (sometimes even if you do everything 100% correctly [I think it's the daily "1/5bil odd fairy" that causes it - so it's gonna happen for sure to someone somewhere every day despite all the praying in the world - hopefully not to the same person over and over though. [in such a scenario one should check out the local neighborhood's religious sects to see how many Damien's and Thorns are registered.)

**Fizzycapola** · 08-30-2007, 10:10 PM

Re: Recap gone bad

The flow of electric is what counts. If it still goes in the right directions it should then no problems.

I cook and lift pads by accident all the time, (it's low voltage and not really worth much money I don't need to care). They just add resistance because of impurities I think, even snip them off if too dirty to acid clean even and make your own blob pad of clean solder perhaps (with tip tinner?) properly bonded to the cut off point. The gap around the solder pad shouldn't be breeched of course - is usually grounding area.

**Leung Kai-yan** · 09-15-2007, 01:24 PM

Re: Recap gone bad

Originally posted by aphex

I was reading this forum and found out that my new Foxconn MB has about two dozens of Evercon 6.3v 1000uF (fromerly GSC, I assume) and 3 Lelon.

So I tried to recap those with Samwha WZ and WB series.
While doing this, I made some mistakes.
As you can see in the picture, I had a pad blown off.

After doing some research on this forum, I put out a digital MM and checked the blown off pad (it was below PCI slot and negative side). It seems like the via is still intact because it showed perfect connectivity with other cap's negative side. Am I right?

Also, I've scraped some coating near a pad and soldered it with pad.
It was the one located near USB and SATA ports and it was positive side.
Should I cut the connection with a pick or something?

Is this OK to use this board, or should I dump it?
I have little knowledge about Electrics. I am worried that some other major component would fail if I power up this board.

Dear Friend,
If the two pins of the PW SW/PW BTN on the mainboard yield the reading of low resistance (1XX-2XX ohms), it means no explosion with the power supply on but with no AC supply.

**Leung Kai-yan** · 09-17-2007, 04:45 PM

Re: Recap gone bad

Dear Friend,
The job mentioned in the above post can be done easily with these instruments (see attachment).

Attached Files

**aphex** · 09-23-2007, 06:46 AM

Re: Recap gone bad

Originally posted by Leung Kai-yan

Dear Friend,
If the two pins of the PW SW/PW BTN on the mainboard yield the reading of low resistance (1XX-2XX ohms), it means no explosion with the power supply on but with no AC supply.

Thanks for the info. I have a digital multimeter and will try to remember the information next time.

Recap gone bad

Recap gone bad

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