Could use some psu help

[junktv]

Re: Could use some psu help

Well wouldn't you know i screwed up. I know surprise. I added a cap to that spreadsheet but forgot to put it in the cart.

So I had a 13mm high PW 470uf 10v picked out for the ultra PSU and forgot but did order a FR 470uf 16v that was to replace a OST on the motherboard. I have a brand new ZL 470uf 25v , a MCZ 470uf 16v and a KZE 470uf 35v although it is big and 5mm lead space. I also have lightly used 470uf 16v rifeking.

What would you guys do?


Btw this one said low esr also but didn't see it till I pulled it.

[stj]

Re: Could use some psu help

Fr

[junktv]

Re: Could use some psu help

Then what for the board?

[stj]

Re: Could use some psu help

no idea.

but as for the psu, the ZL is probably too big,
the MCZ is way too low esr.
also obsolete so i dont know where you found it.

the KZE is too big,

rifeking - never heard of them!

[stj]

Re: Could use some psu help

ah - what series is it?
http://www.paullinebarger.net/DS/Rifeking/

[momaka]

Re: Could use some psu help

So I had a 13mm high PW 470uf 10v picked out for the ultra PSU and forgot but did order a FR 470uf 16v that was to replace a OST on the motherboard.

Well, from what I can see, the 16V 470 uF Panasonic FR is to replace the 16V 470 uF OST RLG cap by the AGP slot on your motherboard - is that correct? If so, then you can just leave that OST RLG cap on the board, since it only filters 12V to the AGP slot and it isn't that important, even if it failed.

So then you can put the FR in the Ultra PSU and be done with it. And if bad really comes to worse and that OST RLG cap bulges on the motherboard, then you can swap it for the Rifeking or something better.

Don't worry, everyone makes mistakes. I myself always forget to buy something when I make these orders or occasionally don't buy the right parts.

[junktv]

Re: Could use some psu help

Correct the FR is for the OST RLG near AGP. The board and bestec are more import to get done fast so may hold off on the ultra for now unless the ZL will work since it fits. Maybe I can find one although no luck locally. Also found 15 little 100uf 10v teapo caps on my 939 board so that may be another project i'd have to order parts for. It's also what the Ultra will power.

I'm shocked I didn't miss more honestly.



stj, The ZL actually fits the PSU although it is a 10mm. The MCZ and ZL's I got years ago. The rifeking has no markings for series it's like a brownish grey and came off a video card.

[stj]

Re: Could use some psu help

you could use the ZL then.

[junktv]

Re: Could use some psu help

Well i noticed something when i pulled these. Why would a cap be wrapped?

It's c45 has a question mark.

[stj]

Re: Could use some psu help

FSP do that, i suspect it may be for thermal protection to make it last longer.

if not, i'm open to other ideas!

[junktv]

Re: Could use some psu help

Seems holding in heat would make it worse. Although the 5vsb on these seem to like heat but that may have been due to the exploded or bad caps. All the solder joints looked ok.

Seems they wanted airflow as the caps were all raised off the board aswell.

Btw that is a pre clean up pic.

[momaka]

Re: Could use some psu help

FSP do that, i suspect it may be for thermal protection to make it last longer.

Could also be electrical isolation. The case on most modern electrolytic caps is not directly connected to negative, but usually there is good conduction path between negative lead and case... so that could be one reason, especially if the cap is in an area in very close proximity to bare jumpers or "live" heatsinks.

That said, if you really want to keep things original, you can cut the sleeve, remove it, and fit it on the new cap,

Seems holding in heat would make it worse.

Yes, personally I don't see how the sleeve helps to protect a cap from heat. If anything, I think you are right - it will probably hold more heat in.