So I got Abit BX133 RAID for free, caps are corroded

[UtwigMU]

It was given to me at work in antistatic bag.

On brief inspection the caps above CPU socket (opposite to PCI slots) appear to be corroded.

Q1: Is it hard to get replacement caps?
Q2: How hard is it to replace them?

[The PIT]

Should be able to get the caps at your local electronics store. Just be careful when you're desoldering otherwise you may mess up a pad or two. Make sure your soldering iron tip is in good nic and preferrably a nice narrow one.

[Greebe]

This all also depends on what kind of cap you need, not all electrolytics are the same. Put the wrong type in and tho it may work for now, how long would it last, a week, a month... ???

Desoldering multi layered PCB's like MB's is a PITA without a decient desoldering station. Hakko or similar would be best and is recommended.

I wouldn't suggest doing it if you are inexperienced with less.

[UtwigMU]

Do I have to/should I replace all the caps or just the type that leaked?

[SteveC]

I'd do any that were even slightly blown/disformed

[Brian R.]

If you want, you may contact:

http://home.att.net/~garyheadlee/

for service on this issue

I have had him modify 4 of my MBs with replacement caps
Recommended

His website also has alot of information on identity and sources of replacement caps. Don't purchase identical caps. Use the ones he recommends for replacement.

[The PIT]

Originally posted by Brian R.
If you want, you may contact:

http://home.att.net/~garyheadlee/

for service on this issue

I have had him modify 4 of my MBs with replacement caps
Recommended

His website also has alot of information on identity and sources of replacement caps. Don't purchase identical caps. Use the ones he recommends for replacement.

Not going to be worth it since UTwigMU is across the pond. If you consider the value of the motherboard.

[Brian R.]

Mostly quoted the website for the information contained therein.

[UtwigMU]

OK, so today I powered the thing (just the board and Power Supply).

The led was on, the fan spun, it's alive.



The caps right to the socket on this pic (it's from web, not mine) are bust, except the bottom one which is 1500uF.

They are 1000uF 10V



CAPS:

• 11 x 1500uF 6.3V (green) (jackon - what does this mean? - a company or are they just jacked on and not soldered?)
  
• 7 x 1000uF 10V (black)
  
• 4 x 1000uF 6.3V (green)

The 11 1500uF / 6.3V caps are all corroded and there was dust arround them.

Do I replace just the 1500uF caps or do i change all 22 of them (there are a few smaller ones as well, but I guess, they're not problematic).

Another thing, I need a CPU to test the board (a friend told me that sometimes bust boards power on, but they reboot as soon as CPU has any load).

Would PPGA Celery be OK? (I own 0 Socket 370CPUs)

Since the board is flaky I'd like to get cheapest 2nd hand CPU I can get. If the thing works out OK, I'll get NEO and Tualatin 1.0 or 1.1.

[UtwigMU]

http://www.spectrum.ieee.org/WEBONLY/resource/feb03/ncap.html

Jackon is a Taiwaneese caps manufacturer that's mentioned in this article.

Apparently all the Jackon caps are to go.

[UtwigMU]

So do I get same capacity rating and higher voltage caps?

Which caps do you recommend?

What would higher uF rating caps do?

[Brian R.]

I would replace the caps as described in the site I posted above.

[UtwigMU]

All of the caps are made by Jackon, so I'm goint to jack them off.

I have a friend, who is nearly EE and can borrow a soldering station. He's willing to do it.

I haven't soldered so far, so I'd not have motherboard for my first job.

[UtwigMU]

To continue this project:

(I'm posting this in case I forget my notes, heh...)

On Monday I'll order:

12 x 1000uF / 10V
7 x 100uF / 16V
11 x 1500uF / 6,3V
1 x 10uF / 25V

31 total caps.

Here's how socket looks like now.

[UtwigMU]

The place, I'm ordering caps from has Farnell parts (UK), same as place Brian R. recommended.


Farnell part # 769-071 (search on 769071)
Manuf part # Rubycon 10ZL1500M10X23
Description: