Capacitor replacement Motherboards

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avalanche
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Capacitor replacement Motherboards

Postby avalanche » Tue Apr 12, 2016 9:06 am

Annoyed throwing your old motherboard out because it stopped working :twisted:

Ever wondered if replacing old crusty capacitors can get it running again :?:
Yes in many cases it can. Especially the larger ones near the cpu socket.

:idea: This will be listing of cap replacements for your motherboards.
Frustrated how & unsure how to search them no more.

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Reserved reference pic
Last edited by avalanche on Tue Apr 12, 2016 11:37 am, edited 2 times in total.

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avalanche
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Re: Replacement Motherboard Capacitors

Postby avalanche » Tue Apr 12, 2016 9:06 am

Reserved update lists

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Amd Slot A. Gigabyte GA-7IXE rev1.1

Replacement caps used are.................to do later.
Last edited by avalanche on Tue Apr 12, 2016 10:08 am, edited 1 time in total.

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avalanche
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Re: Replacement Motherboard Capacitors

Postby avalanche » Tue Apr 12, 2016 9:07 am

Reserved 2nd update lists

Note: I'll be editing lists a bit as more is done.
Last edited by avalanche on Tue Apr 12, 2016 3:56 pm, edited 1 time in total.

pfrcom
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Re: Capacitor replacement Motherboards

Postby pfrcom » Tue Apr 12, 2016 12:43 pm

Why replace Sanyo, which are regarded among the best on BADCAPS.NET ?

Whereas GSC, and successor brands like Evercon, are deemed to be crap

And are you replacing the Sanyo with low-ESR types ?

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avalanche
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Re: Capacitor replacement Motherboards

Postby avalanche » Tue Apr 12, 2016 3:51 pm

Sanyo & GSC are the removed ones. They're 16year old now, so out they come. :)
Just the age of the caps Peter that puts me off. I'm doing full board replacements.
I would hope my selected ones are low esr. Not check that often as I'll usually go the high quality ones 5k Hours & up.
You'll see later on the OC hard boards will be over done. + it looks impressive to boot.

Happy for any guidance here, if you know a better replacement choice then great. :D
Caps going in are not cheap varieties. Usually Panasonic, Rubycon & chemicon. Sourced from RS-Online " comprehensive AU store "

___________________________________________________________________________________________

No 9 cap behind cpu slot a little specialized. Colour is Purple / Grey band Sanyo 10x10mm
Electric Double Layer Capacitors :?: Not sure of the marking here.
http://au.rs-online.com/web/c/passive-c ... 4294959699

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pfrcom
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Re: Capacitor replacement Motherboards

Postby pfrcom » Thu Apr 14, 2016 12:39 pm

avalanche wrote:No 9 cap behind cpu slot a little specialized. Colour is Purple / Grey band Sanyo 10x10mm
Electric Double Layer Capacitors


That's a Sanyo OSCON - a polymer capacitor, as distinct from electrolytic - polymer often called solid by current motherboard marketers

OSCONs generally regarded as best-of-the-best of their era

Notwithstanding 16 years old, I personally would have left all Sanyos alone, unless they were exhibiting domed tops or pushing up/over from underneath

I prefer not to attack anything with a soldering iron unless it's absolutely necessary - if it ain't broke ...

I'm not an electronics bloke, most of what I know gleaned from ~10 years membership of BadCaps.Net forum where there's plenty of useful information in the "Motherboards with Bad Capacitors" sub-forum

As you've observed, you can't go wrong buying Panasonic, Rubycon or Chemicon from a reputable source like RS Components, not eBay where counterfeits are common

It's not just brand though - series of capacitor also comes into it, and temperature rating (105 degree preferable to 85)

Nichicon is another reputable brand, but they have had a dud series, KZG

And not to forget Sanyo, now called Suncon

I believe with electrolytic capacitors, long life like 5000 hours is usually mutually exclusive with low-ESR

However with something of GA-7IXE vintage, low-ESR won't be as critical as it is for later model boards

Having said that, those crappy GSC capacitors were in the VRM section of the board, where low-ESR is important

If you do visit BadCaps.Net forum, glossary is pannie (Panasonic), ruby (Rubycon) & poly (polymer)

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avalanche
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Re: Capacitor replacement Motherboards

Postby avalanche » Thu Apr 14, 2016 4:39 pm

Thanks Peter for the nice post :D Glad to see an old guru from the other forum posting here.
It's a shame the other members cannot get more active here. Forum here empty of members for days, not counting guests.

Sneak peak of some boards here. Atari Joe if he ever shows up, may be sent the ECS + 650 Athlon in the background.
Although there is a 600 Athlon on the horizon.

These epox both have nasty caps. GSC for certain most of them. Still good early examples of what should be collected.

I'm OK on the soldering Peter. Issues in the past bad lighting / eyesight. Atari Joe's method with the variable temp desolder gun
works a treat. Gave good advice many years ago, now I'm putting it to good use. New 0.7mm solder has been fantastic & melting
in smooth & uniform. Though I'll have to watch what I use on the lead free boards.

Still working on my Socket A's atm. Though sad a Msi Nforce 2 is karked. Was a leaked cap near the battery let go. Board is shorted in that
area & the components heat up quickly. Good for a wall hanging display now LoL.

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pfrcom
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Re: Capacitor replacement Motherboards

Postby pfrcom » Fri Apr 15, 2016 12:59 pm

All this talk of troubles desoldering makes me appreciate my Hakko 808 even more


avalanche wrote:Atari Joe's method with the variable temp desolder gun works a treat


So, did you buy a Hakk0 808 or its successor FR300 ?

I thought once, briefly, about a DEN-ON SC-7000Z
http://www.radioparts.com.au/product/38492018/sc7000z-high-performance-desoldering-tool-gun-den-on
but too expensive for a hobbyist, especially when lead-free is such a pain to work with

Will be interested to hear how your desoldering goes on later lead-free boards

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avalanche
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Re: Capacitor replacement Motherboards

Postby avalanche » Fri Apr 15, 2016 2:18 pm

Nah just a cheapy for the time being. Fans are batshit loud as hell. :shock: Max is about 480deg iirc.
Still it can handle the larger ground planes just fine. Similar to this unit. I'll invest in a better soldering station latter.

https://www.google.com.au/search?q=Dura ... rk2vo1M%3A

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avalanche
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Re: Capacitor replacement Motherboards

Postby avalanche » Sun May 01, 2016 12:03 am

Ended up getting a cheapy hakko station Peter. Can now see why people recommend them. Was Ok with the original 0.8mm tip.
But an optional 0.5mm tip was just what to doctor ordered. 18x caps in a ga-5ax was painless & turned out fantastic.
That Epox slot A above did not work. Half the caps were shot. Yanked them out, not having the same 2200 & 1200uF caps
I went ahead & temp fitted some others that were close. No go again, no post. Doh!

Thought nothing to lose, so dropped in another bios chip & BAM ! Life :D So stoked with that & they're kind of rarish now.

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Haha wow my test voodoo3 is a dusty bastard.

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Krumm
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Re: Capacitor replacement Motherboards

Postby Krumm » Mon May 02, 2016 3:20 pm

avalanche wrote:Haha wow my test voodoo3 is a dusty bastard.

Just a tad, there was a nice NF7 on OCAU with busted cap if you wanted some more practice.

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avalanche
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Re: Capacitor replacement Motherboards

Postby avalanche » Wed May 04, 2016 6:09 pm

Krumm wrote:
avalanche wrote:Haha wow my test voodoo3 is a dusty bastard.

Just a tad, there was a nice NF7 on OCAU with busted cap if you wanted some more practice.


LoL, no no no. :P Have all the practice I need without bringing more strays home
Behold the beauty Ga-5ax Rev4.1 full recap. 330uF 7k Rubycons & that small 22uf one done too. 8-)

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Re: Capacitor replacement Motherboards

Postby Krumm » Wed May 04, 2016 9:47 pm

Nice work, one of those things we probably should all learn to do.

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avalanche
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Re: Capacitor replacement Motherboards

Postby avalanche » Wed May 04, 2016 11:08 pm

Thanks champ.
Think my gonads hit an all time low tonight, taking on this next board. :o
It needs no introduction. Very nervous to see it start.

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Washerman
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Re: Capacitor replacement Motherboards

Postby Washerman » Thu May 05, 2016 12:38 am

Just beautiful! You need to post a how-to vid ;) help out the soldering n00bs like me!!

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avalanche
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Re: Capacitor replacement Motherboards

Postby avalanche » Thu May 05, 2016 7:27 pm

I fought it a long time. Just used cheap & nasty soldering irons. But I could always solder well.

The difference? A quality soldering iron is amateur to master. :oops: If Atari Joe comes along, told long ago.
It really is that dramatic a difference. Come here middle NSW & solder my boards. Tons of them :P


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