EVGA GTX 460 - Bad Caps

[hoomanium]

Hi guys,

I am looking for the correct caps to repair an EVGA GTX 460. There are two blown caps on the card. I have highlighted them in the pictures.

The first one is slightly smaller and it's called: f0 820 2.5z



The second one is bit bigger than the other and it's called: f0 ORCZ 270 16V




I truly, truly, truly appreciate it if you can help me find the right caps to repair my card.

[c_hegge]

Re: EVGA GTX 460 - Bad Caps

Stop using that big text please!

The caps on there are Lelon polies, They made junk lytics, and I've long suspected that they may not be doing polies right either.

It looks like you have 270uF 16V and 820uF 2.5V caps there.

Use these for the 270uF 16V polies.

For the 820uF 2.5V polies use these if they are 6.3mm diameter, or these if they are 8mm diameter

[mockingbird]

Re: EVGA GTX 460 - Bad Caps

Good, we have a confirmed case that Matsuki/Lelon polymers are worthless, as I've always suspected.

[c_hegge]

Re: EVGA GTX 460 - Bad Caps

I probably should add, replace ALL of the lelon caps, busted or not, because they will fail sooner or later.

[hoomanium]

Re: EVGA GTX 460 - Bad Caps

Thanks for the quick response c_hegge. I know for a GPU VRM I need "Ultra Low ESR" (The "PSC" Capacitors). Do they meet this criteria? Also, I'm not familiar with these brands, could you please tell me what will be the highest quality product I can find in the market to replace all the caps?

[c_hegge]

Re: EVGA GTX 460 - Bad Caps

The PSC is simply a series of solid caps made by Chemi-con. The ones I suggested as replacements are all high quality Japanese capacitors, and their specs should be fine for this card.

For Polymer caps, the following are known to be good reliable brands:
Nichicon
FPCAP
Fujitsu
Sanyo/OS-CON
Chemi-Con

The ones I suggested in my earlier post were from Nichicon.

[hoomanium]

Re: EVGA GTX 460 - Bad Caps

I'm thinking of purchasing this as the 8.0mm 270uF 16V and this one as the 6.30mm 820uF 2.5V. United Chemi-Con seems good to me. What do you think?

p.s Please double check the specs just in case I'm making a mistake you can catch it.

[mockingbird]

Re: EVGA GTX 460 - Bad Caps

Lelon "OCRZ" 16V 270uF:
8x8mm: 0.010 5000
8x12mm: 0.008 5000

UCC "PSC" 16V 270uF 8x11.5mm:
0.011 5080


Lelon "OCRZ" 2.5V 820uF 6.3x8mm:
0.007 5600

UCC "PSE" 2.5V 820uF 6.3x8mm:
0.007 5000

The Nichicon polymers at Digikey are better rated.

[hoomanium]

Re: EVGA GTX 460 - Bad Caps

I suspect that's due to the low price. Chemi-Con costs three times more.

[c_hegge]

Re: EVGA GTX 460 - Bad Caps

The Nichicons I suggested and the Chemi-cons you were considering should both do the job just fine, go with whichever you like.

[mockingbird]

Re: EVGA GTX 460 - Bad Caps

Digikey has better prices for Nichicon than they do for UCC. Nichicon polymers are just as good as Chemicon polymers, and they are around 50 cents less.

Here are my reccomendations:
2.5V 820uF $0.96
16V 270uF $0.84

Oh, and listen to c-Hegge and replace all the caps.

[hoomanium]

Re: EVGA GTX 460 - Bad Caps

Thanks guys for helping out, I really appreciate that. I got the Chemicon caps. Is there anything else I should bear in mind while installing the caps (what to do so that things don't come loose when they heat up etc.) Also, Do you think changing to higher quality caps will help achieve better over-clocking?

[c_hegge]

Re: EVGA GTX 460 - Bad Caps

There's not much risk of other things coming off as you heat up the PCB, unless you touch other parts with your soldering iron.

Better quality caps probably won't make it OC better. That really comes down to the design of the cooler and the VRM. Better quality caps just don't blow up after a few years like the cheapies do.

[Per Hansson]

Re: EVGA GTX 460 - Bad Caps

Just curious but that is a pretty recent VGA card; The GTX 460 series was launched in July 2010
When was your's manufactured and is it out of warranty already?

[hoomanium]

Re: EVGA GTX 460 - Bad Caps

No, I meant what kind of filler metal do I have to use for soldering the caps so they won't come loose while being under pressure in the future. I know there are different fillers and each one has a different melting point and other properties. What would you recommend?

[hoomanium]

Re: EVGA GTX 460 - Bad Caps

Just curious but that is a pretty recent VGA card; The GTX 460 series was launched in July 2010
When was your's manufactured and is it out of warranty already?

That's true. But, I got it from EVGA B-Stock. So, it's basically a refurbished product and didn't come with a warranty.

Great card though, that's why I want to resurrect it so badly.

[c_hegge]

Re: EVGA GTX 460 - Bad Caps

No, I meant what kind of filler metal do I have to use for soldering the caps so they won't come loose while being under pressure in the future. I know there are different fillers and each one has a different melting point and other properties. What would you recommend?

The solder itself holds them in. Just make sure the joints have an appropriate amount of solder.

[Behemot]

Re: EVGA GTX 460 - Bad Caps

How did you discovered the caps are bad?

[c_hegge]

Re: EVGA GTX 460 - Bad Caps

I'm guessing they exploded

I'm also guessing that the OP won't chime in again (he hasn't in over a month now)

[Behemot]

Re: EVGA GTX 460 - Bad Caps

Just that there are no bad on the pictures, is there more of them on the card?