Hi, I've recapped a few boards myself, and they all worked pretty well after the process. For me I would suggest you just search for them on a electronic component retail site and just buy known brand with the same capacitance. The rated voltage doesn't matter as long as it's higher than your old caps.

KZG and HM -> Replace with polymers, ultra low ESR electrolytics like these are not produced anymore
KMG/KMA -> Replace with any 105C from decent brands that fits, or leave them if they're not visibly bulging or leaking

For hm is that problem if its waaay lower esr? KMG-KMA, the part number i linked as replacement maybe? And for the VRM ones? High side I linked 2 as the poly is waaay better than the original. The low side, I found a same type so its ok.

laskr1999 wrote on Yesterday, 23:04:

For hm is that problem if its waaay lower esr? KMG-KMA, the part number i linked as replacement maybe? And for the VRM ones? High side I linked 2 as the poly is waaay better than the original. The low side, I found a same type so its ok.

Nichicon HM is already an ultra-low ESR series, that's why it was chosen by the manufacturer, a polymer with even lower ESR will be a perfectly adequate replacement there.

KMG/KMA are general puropse capacitors, no need to go with low ESR on those, anything decent 105C rated will do the job there, those capacitors aren't likely going to be under too much heat/stress and I bet the current ones are just fine and do not need to be replaced.

For the VRM it's no problem if you use much better caps than the original ones, in fact it may even be beneficial to use polymers there.

laskr1999 wrote on Yesterday, 21:37:

Hello! I would like to preserve my DFI boards from plague era. they are ofc expensive, so I would do a full, but normal recap. […]
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Hello!
I would like to preserve my DFI boards from plague era. they are ofc expensive, so I would do a full, but normal recap.

My problem is, that for some caps I can only find way better poly, or way worse electrolytic cap(fr series). Can someone help me what to or not to do with? The last cap, I have 2 NF3 board and one have nichi one have chemy on the same places.
Chemi-con:
KZG:
6x - 6.3V 3300uf - dark red --->RPF1014332M006K
4x - 16V 1500uf - light red --->16ZLQ1800MEFC10X20 OR poly: APSG160ELL152MJ16S
1x - 16V 470uf - Brown --->?
5x - 10V 1000uf - lime --->?
KMG:
18x - 16V 100uf - Blue --->16ZLQ150MEFC5X11
KMA:
4x - 16V 100uf - white --->ESS107M016AE2EA

Nichicon:
HM(M):
20x - 6.3V 1000uf - pink --->?
OR
KZG 6.3 1000uf - pink --->?

Don’t mess about.
Two voltages are sufficient on the motherboard
- 16V for the 12V rail
- 6.3V for everything else
For the 12V rail, polymer capacitors of 470μF or more are sufficient (or 270μF if they are ultra-low ESR)
For everything else, 470+ (560/820μF)
If you really want to, you can fit a 2200μF *3.3V capacitor to the CPU VRM (but this is optional)
All the smaller ones are 100μF *16V.

Take a look at any more or less modern motherboard, or at least an AM3+.
https://theretroweb.com/motherboards/s/asus-m … t-m-v2-rev-1-02

https://www.we-online.com/en/components/produ … P_PT5H_SIZE_6_3
Take the red rabeled old-style Würst WCAP-PT5H. They come in diameters of 6.3, 8 and 10 mm.
If they’re all the same colour, the re-cap doesn’t look like a redneck style.

shevalier wrote on Today, 05:05:

https://www.we-online.com/en/components/produ … P_PT5H_SIZE_6_3
Take the red rabeled old-style Würst WCAP-PT5H. They come in diameters of 6.3, 8 and 10 mm.
If they’re all the same colour, the re-cap doesn’t look like a redneck style.

So i did have some replacement options, maybe going like this? Tried to use same brand/style mostly.

So, maybe like this? I tried to use same brand and or same series to cover the board. HM caps->some bulging, and I have 2 boards, one is HM, the other one have kzg instead of HM, same capacity, same voltage, and size, and those are popping badly.

Chemi-con:
KZG:
6x - 6.3V 3300uf 10x25mm - dark red --->Kyocera RPF1014332M006K
4x - 16V 1500uf 10x20mm - light red --->Nichicon RNL1C152MDSBSQ
1x - 16V 470uf 8x11,5mm - Brown --->Nichicon RNE1C471MDN1
5x - 10V 1000uf 8x15mm - lime --->Kyocera RPF0811821M010K

KMG:
18x - 16V 100uf 5x11mm - Blue --->Rubycon 16ZLQ150MEFC5X11/Poly:RNE1C101MDS1 OR leave it?

KMA:
4x - 16V 100uf 6.3x7mm - white --->Nichicon RS61C101MDS1

Nichicon:
HM(M):
20x - 6.3V 1000uf 8x12.5mm - pink --->Kyocera RPF0610102M006 OR RPF0609821M006K
OR
KZG 6.3 1000uf 8x12.5mm - pink

So wouldn't way lower esr or all poly cause problems? I tried to hold most of the capacitance like at the original.

I didn’t know motherboards this old used ultra low ESR caps. I replaced the caps on my DFI boards with standard aluminium electrolytic Panasonic low ESR caps (from mouser.com), matching exact capacitance and voltage. Have I destroyed my boards?

laskr1999 wrote on Today, 09:24:

So i did have some replacement options, maybe going like this? Tried to use same brand/style mostly. […]
Show full quote

shevalier wrote on Today, 05:05:

https://www.we-online.com/en/components/produ … P_PT5H_SIZE_6_3
Take the red rabeled old-style Würst WCAP-PT5H. They come in diameters of 6.3, 8 and 10 mm.
If they’re all the same colour, the re-cap doesn’t look like a redneck style.

So i did have some replacement options, maybe going like this? Tried to use same brand/style mostly.

So, maybe like this? I tried to use same brand and or same series to cover the board. HM caps->some bulging, and I have 2 boards, one is HM, the other one have kzg instead of HM, same capacity, same voltage, and size, and those are popping badly.

Chemi-con:
KZG:
6x - 6.3V 3300uf 10x25mm - dark red --->Kyocera RPF1014332M006K
4x - 16V 1500uf 10x20mm - light red --->Nichicon RNL1C152MDSBSQ
1x - 16V 470uf 8x11,5mm - Brown --->Nichicon RNE1C471MDN1
5x - 10V 1000uf 8x15mm - lime --->Kyocera RPF0811821M010K

KMG:
18x - 16V 100uf 5x11mm - Blue --->Rubycon 16ZLQ150MEFC5X11/Poly:RNE1C101MDS1 OR leave it?

KMA:
4x - 16V 100uf 6.3x7mm - white --->Nichicon RS61C101MDS1

Nichicon:
HM(M):
20x - 6.3V 1000uf 8x12.5mm - pink --->Kyocera RPF0610102M006 OR RPF0609821M006K
OR
KZG 6.3 1000uf 8x12.5mm - pink

So wouldn't way lower esr or all poly cause problems? I tried to hold most of the capacitance like at the original.

You know, even Gigabyte ended up ditching that garish design.

I have never recommended using ultra-low ESR polymers, such as those with a resistance of 5 mΩ, like this
https://eu.mouser.com/datasheet/3/497/1/e_ple.pdf

How exactly does a general use polymer Würst 2200*6.3V capacitor with a 12 mΩ ESR differ from a KZG capacitor of similar capacity?
https://www.we-online.com/components/products … 70025175013.pdf
https://datasheet.octopart.com/EKZG6R3ELL182M … t-151622542.pdf

zuldan wrote on Today, 10:08:

I didn’t know motherboards this old used ultra low ESR caps.

The first polymers capacitors were developed by Sanyo 40 years ago, in 1982.
They were even used in motherboards for Pentium Pro processors. 😀