Weird Yellow Caps

[PedroDaGr8]

I have to replace some caps on an old HP AMD computer (old socket 462). Two of them are GSC (big suprise there ) 10V 1000uF's. The others I can not find a logo on them anywhere. They seem to have a very very very subtle bulge (could be manufacturing defect even it is so subtle) but I don't trust them because they are in the main VRM, which is in a riser PCB off the board LOL. They are bright yellow with black markings on them (arrows with o's in them). 4 of them are 6.3v 680uF and 2 are 4v 820uF. Which seems odd to me, because they are all the same size. I tried to take a picture but they all came out blurry. Any recommendations on caps would be great. The computer serves as a terminal in my fathers dental office for the dental assistants to look up digital x-rays, schedules etc. so it needs to be as stable as can be, but it will not be taxed extra hard.

[willawake]

Re: Weird Yellow Caps

from the values you gave they must be these fujitsu
https://www.badcaps.net/forum/showthread.php?t=597

[PedroDaGr8]

Re: Weird Yellow Caps

yep those are it. Odd I searched for yellow black capacitors and that thread never came up. Hmm. Now it is time to figure out what I want to replace them with.

[Big Pope]

Re: Weird Yellow Caps

Suggest better to recap with reliable 1500uF 6.3v Ultra Low ESR E-Caps, instead of these old yellow Fujitsu polymers.

[Newbie2]

Re: Weird Yellow Caps

I know Big Pope going to suggest "SAMXON"

[Big Pope]

Re: Weird Yellow Caps

I know Big Pope going to suggest "SAMXON"

I think you should misunderstanding my meaning, I am not suggest "SAMXON", i just suggest to use with ultra low ESR caps. Rubycpn MCZ and UCC KZJ are also recommand, i am never hard sell "SAMXON". But, if anyone want to try, welcome. More choices must better for consumers.

[trodas]

Re: Weird Yellow Caps

I would go with Samxons, but that is just me and my very good experience with them.

Ruby MCZ could be interesting to try, but hard to source - at least for me impossible...

Oh the other hand, Samxons GC offer par-to-par specs with impossible to source MCZ Rubys and the GA Samxons are even far better that this, so the only one question remain - if the GA aren't too good for the old 8RDA+ design - it may or may not cause ringing and oscilations witch increase the overheating and decrease the overclockability by increasing ripple...

GC would be a smart choice there, GD for the small ones and RS Samxons for the little caps witch could bring big problems when not changed too

[tazwegion]

Re: Weird Yellow Caps

I would go with Samxons, but that is just me and my very good experience with them.

As have many forum members, depending on where you are Rubycon, Panasonics etc. might be easily sourced also

[2ntense]

Re: Weird Yellow Caps

Found this forum searching for cap info.

I have a xbox360 and the yellow/black 4v 820uf behind the left controller port seems to have a "ball bearing loose" sound. Is this possible? Only asking cause the 360 finally took a crap on me and I'm trying to fix it. Thought maybe it was just overheating but now I don't know.

Thanks

Bryan

[gonzo0815]

Re: Weird Yellow Caps

Can you provide some pics? and what exactly do you mean with "ball bearing loose"? does it generate noise? I would be somhow suprised if MS haven`t forced his OEM`s to use some minimum quality. What exatly is going wrong with the box? The more details you give, the better the advice you may get. In generall it is possible that some parts are starting to emit a hizz if things are getting worse. But usually the coils are more prone for that kind of anoyance, but singing caps are common too.

[willawake]

Re: Weird Yellow Caps

isnt there a coil next to the cap. that will be making a hissing noise.

[gg1978]

Re: Weird Yellow Caps

Found this forum searching for cap info.

I have a xbox360 and the yellow/black 4v 820uf behind the left controller port seems to have a "ball bearing loose" sound. Is this possible? Only asking cause the 360 finally took a crap on me and I'm trying to fix it. Thought maybe it was just overheating but now I don't know.

Thanks

Bryan


That's the position sensor that tells the xbox if its sitting down flat or up on edge, so it can adjust the 4 quadrants of the "Ring of Light" to reflect current controller ID related to the screen in multiplayer games.

It's fine.....

[trodas]

Re: Weird Yellow Caps

willawake -

isnt there a coil next to the cap. that will be making a hissing noise.

True, but I do remember that prior to explosing of my caps I heard this noise too. Usualy hi-pitched one, but it depends on circuit.
To tell long story short - the excessive riple of dying cap could and does make the coil resonate


2ntense - please provide detailed picture and read type of the cap/what is writen on it? Witch company made it? It is bulging? Smelling?

[2ntense]

Re: Weird Yellow Caps

Can you provide some pics? and what exactly do you mean with "ball bearing loose"? does it generate noise? I would be somhow suprised if MS haven`t forced his OEM`s to use some minimum quality. What exatly is going wrong with the box? The more details you give, the better the advice you may get. In generall it is possible that some parts are starting to emit a hizz if things are getting worse. But usually the coils are more prone for that kind of anoyance, but singing caps are common too.

I'll post pics soon. "ball bearing loose" means, remember that game you hold with all the little steel balls and you try to get the balls to sit in each hole, thats what it sounds like. NO hissing or singing caps sound from my discription. The Xbox after almost a year of perfect working order began to freeze up last night. It was during a game and then would boot back up only to freeze again after a few seconds. So i let it sit for an hour or so then fired it back up. Demoed Tony hawk for about 5 minutes then it froze again. Seems to be a heat issue now but can't be totally sure.

thanks

[2ntense]

Re: Weird Yellow Caps

Found this forum searching for cap info.

I have a xbox360 and the yellow/black 4v 820uf behind the left controller port seems to have a "ball bearing loose" sound. Is this possible? Only asking cause the 360 finally took a crap on me and I'm trying to fix it. Thought maybe it was just overheating but now I don't know.

Thanks

Bryan


That's the position sensor that tells the xbox if its sitting down flat or up on edge, so it can adjust the 4 quadrants of the "Ring of Light" to reflect current controller ID related to the screen in multiplayer games.

It's fine.....

No kidding! If that's the case then I have other issues. Man I would not have thought of that.

[2ntense]

Re: Weird Yellow Caps

Here is a pic of the caps I'm talking about

[willawake]

Re: Weird Yellow Caps

"ball bearing loose" means, remember that game you hold with all the little steel balls and you try to get the balls to sit in each hole, thats what it sounds like.

sounds like HDD or optical drive failure

[Rainbow]

Re: Weird Yellow Caps

The right yellow cap seems a bit bulged. Replace both with 2200uF caps.

[Topcat]

Re: Weird Yellow Caps

The Iwill DVD266U-RN has 4 of those little yellow critters (680@4v I believe). I've seen a few boards with them bulging a bit, and replaced them with MCZ's. No more issues after replacing them, and the crappy Hermai's they were loaded with...

[gonzo0815]

Re: Weird Yellow Caps

Are those solid polymer caps? if you can obtain some snyo oscon, i think this should be the best solution, but any ultra low ESR cap like Rubycon MCZ or similar wit increase cpacitance should be ok.