Hai all, I need some help with this project.
I got a mainboard that is in need of some recapping. I got it a week ago from Ebay with caps that look good, but after a week I got 3 leaking and 2 bulging caps. All the caps that are bad at the moment are the ‘Nichicon 6,3v 3300uf 105c H0249 HM(M)’ but next to it are ‘Nichicon 6,3v 3300uf 105c H0302 HM(M)’ and I have read that they are even as bad, but not showing it yet.
Also I like to replace the 3 ‘Rubycon 16v 2200uf 105c S0245 ZL’ to be safe and 1 ‘HD Z1 1500 6,3v’ because it has a big dent in it or even a hole.
So why is this board so important to me. Well I am building the ultimate retro computer that should be compatible with 99% of the games or software from beginning of dos time till Windows XP or even a bit later. For high compatibility with dos games, you need a ISA sound card or a PCI sound card that can emulate how ISA works. The best way to do this is with the use of the pc/pci connector on the mainboard connected to a sound card. Only problem is that that there are not much mainboard around with a Pentium 4 socket and boards with a 533Mhz bus even less.
So I want the mainboard to last a very long time and would love to replace them with polymer caps. But only if it can be done 100% without problems, if not I want to stay with the normal caps but at least with the highest possible quality that don’t make me poor :P
I have no idea where to watch out for. I know the volts can be higher but the capacity should be as much as the same. I know that ESR is important but I have no idea how to apply it.
This is a picture of the mainboard and the list of caps. I would also like to know if I should replace them al or only the problem caps. If so could anyone tell me if there are more caps that are none go bad from the list.
1. 5x Nichicon 6,3v 3300uf 105c H0302 HM(M)
2. 5x Nichicon 6,3v 3300uf 105c H0249 HM(M)
3. 3x Rubycon 16v 2200uf 105c S0245 ZL
4. 1x HD Z1 1500 6,3v
5. 9x DST 6,3v 1000uf 105c
6. 2x TAICON 6,3V 1000uf 105c(HD) 0240(M)
7. 6x NOVA 10v 220uf 105c
8. 4x NOVA 16v 100uf 105c Short
9. 3x NOVA 25v 22uf 105c
10. 7x NOVA 50v 10uf 105c
11. 5x NOVA 16v 100uf 105c Long
12. 1x NOVA 25v 220uf 105c
13. 2x NOVA 25v 33uf 105c
14. 1x Fujicon 16v 47uf 105c(M) RM
I got a mainboard that is in need of some recapping. I got it a week ago from Ebay with caps that look good, but after a week I got 3 leaking and 2 bulging caps. All the caps that are bad at the moment are the ‘Nichicon 6,3v 3300uf 105c H0249 HM(M)’ but next to it are ‘Nichicon 6,3v 3300uf 105c H0302 HM(M)’ and I have read that they are even as bad, but not showing it yet.
Also I like to replace the 3 ‘Rubycon 16v 2200uf 105c S0245 ZL’ to be safe and 1 ‘HD Z1 1500 6,3v’ because it has a big dent in it or even a hole.
So why is this board so important to me. Well I am building the ultimate retro computer that should be compatible with 99% of the games or software from beginning of dos time till Windows XP or even a bit later. For high compatibility with dos games, you need a ISA sound card or a PCI sound card that can emulate how ISA works. The best way to do this is with the use of the pc/pci connector on the mainboard connected to a sound card. Only problem is that that there are not much mainboard around with a Pentium 4 socket and boards with a 533Mhz bus even less.
So I want the mainboard to last a very long time and would love to replace them with polymer caps. But only if it can be done 100% without problems, if not I want to stay with the normal caps but at least with the highest possible quality that don’t make me poor :P
I have no idea where to watch out for. I know the volts can be higher but the capacity should be as much as the same. I know that ESR is important but I have no idea how to apply it.
This is a picture of the mainboard and the list of caps. I would also like to know if I should replace them al or only the problem caps. If so could anyone tell me if there are more caps that are none go bad from the list.
1. 5x Nichicon 6,3v 3300uf 105c H0302 HM(M)
2. 5x Nichicon 6,3v 3300uf 105c H0249 HM(M)
3. 3x Rubycon 16v 2200uf 105c S0245 ZL
4. 1x HD Z1 1500 6,3v
5. 9x DST 6,3v 1000uf 105c
6. 2x TAICON 6,3V 1000uf 105c(HD) 0240(M)
7. 6x NOVA 10v 220uf 105c
8. 4x NOVA 16v 100uf 105c Short
9. 3x NOVA 25v 22uf 105c
10. 7x NOVA 50v 10uf 105c
11. 5x NOVA 16v 100uf 105c Long
12. 1x NOVA 25v 220uf 105c
13. 2x NOVA 25v 33uf 105c
14. 1x Fujicon 16v 47uf 105c(M) RM
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