Gigabyte GA-K8NXP-SLI poly replacements?

[Yakusa]

Hi. Have this decent motherboard. I want to ask for recomendation about replacement this bad caps for poly caps.

https://photos.app.goo.gl/K8qeHyfrtAQwzo3t8
(blue board, two first images are from ASUS P5B-VM motherboard)

5x 3300uF, 6.3V
4x 1800uF, 6.3V

Thanks in advance!

[Sparkey55]

Re: Gigabyte GA-K8NXP-SLI poly replacements?

Who is the maker of the first two photos yellow/tan motherboards.
If not ASUS then those caps are in backwards, reverse polarity.

[Yakusa]

Re: Gigabyte GA-K8NXP-SLI poly replacements?

Hi. The first two images are from ASUS P5B-VM from this thread
https://www.badcaps.net/forum/showthread.php?t=74482

(edited description. sorry)

[Stefan Payne]

Re: Gigabyte GA-K8NXP-SLI poly replacements?

Hi. Have this decent motherboard. I want to ask for recomendation about replacement this bad caps for poly caps.

Crappy low end Polymers like Kemet A750 are a good idea for the KZG
1500uF/6,3V is somewhat similar. For the 3300uF you can either also use the A750 or switch to Panasonic FM. Those tend to be a bit larger though.

[stj]

Re: Gigabyte GA-K8NXP-SLI poly replacements?

4x 1500/6.3
the 3300's are going to be tricky, the largest poly's iv seen are 2000

[Stefan Payne]

Re: Gigabyte GA-K8NXP-SLI poly replacements?

the 3300's are going to be tricky, the largest poly's iv seen are 2000

There are some new Nichicon IIRC, but they are too low ESR.

BUT: Pana FM are comparable to KZG, just a bit bigger.

[stj]

Re: Gigabyte GA-K8NXP-SLI poly replacements?

bigger is a problem near heatsinks though.
i'm not sure the esr is such a problem in vrm circuits, they are often filled with ceramics anyway.

[Yakusa]

Re: Gigabyte GA-K8NXP-SLI poly replacements?

I drop polymod... Im not a pro.
But id like to know Your opinion about this replacement for 3300uf 6.3v capacitors
https://www.digikey.com/product-deta...9CT-ND/7381288

They are worth to buy? Universal fit for all boards 10mm footprint, 5mm lead spacing.

[ChaosLegionnaire]

Re: Gigabyte GA-K8NXP-SLI poly replacements?

thats not a universal fit! your board uses a mix of 8mm and 10mm diameter caps for the cpu vrm output. measure the caps there and make sure the right sizes fit.

the 3300uF ones are 10mm in diameter and the 1800uF ones are 8mm in diameter.

and yakusa, please do not link your images to external sites. use the attach files manage attachments function when posting to upload your photos to the forum website.

[Stefan Payne]

Re: Gigabyte GA-K8NXP-SLI poly replacements?

I drop polymod... Im not a pro.

You have no choice as there are no other decent 8mm types available besides polymer capacitors.
Those small 6,3V/1,500uF you have to replace with polymers - or use inferior parts.
The best you can do non polymer is Panasonic FM 1200uF, if you're lucky to find it.

Polymers are easy to find in that size...

But id like to know Your opinion about this replacement for 3300uf 6.3v capacitors
https://www.digikey.com/product-deta...9CT-ND/7381288

They are worth to buy? Universal fit for all boards 10mm footprint, 5mm lead spacing.

Not really...
Because they are to replace Ultra Low ESR Capacitors.
The FS Series is new and optimized for size but doesn't have the ripple current and ESR as the KZG Series.

With Polymer Caps for the smaller ones that might work well, without them, it might not be the best idea...