Re: junky Jetway P4MDPT board
Correct... though probably both will work fine, since the 3.3V rail uses a mag-amp and generally is OK with slightly lower ESR. That said, I'd pick the Panny FL caps, since KZG is known to have problems (at least the older ones.) So to avoid any gambles, go with FL.
Ah, you're right. I was thinking of the VR series.
I'd probably do it more like this:
3.3V -> 2X 1500uf FL 6.3V
5V -> 1X Nichicon VY 3300uf 16V + 1x Nichicon HV 1500uf 16V
12V -> 1X Nichicon VY 3300uf 16V
And also:
5VSB -> 1x 1500uf FL 6.3V *or* 1x Nichicon HV 1500uf 16V
Don't neglect the 5VSB, even though it's a low-power rail. Due to using flyback topology, it is actually one of the most stressful rail for caps, so only use good name-brand caps there. Both Panasonic FL or Nichcion HV will do fine here. In fact, 5VSB typically do really well with very low or ultra-low ESR... so FL or HV will do nicely... or you can use a 1000 uF polymer for one of the caps there too.
I don't know about that. Here you can get a very good PSU for $100 with name-brand Japanese capacitors. Only thing you need to be concerned for at this price range is the power rating. You can either get a more "powerful" PSU that is built with slightly smaller/weaker input caps or a more "modest" PSU that is overbuilt a lot. IMO, the latter is the better option, as I've seen a lot of high-power PSUs blow their primary caps after many years of use (yes, even Japanese brands), due to APFC putting a lot of stress on them, especially at high loads.
Originally posted by ChaosLegionnaire
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Originally posted by zunasthegreat
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Originally posted by zunasthegreat
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3.3V -> 2X 1500uf FL 6.3V
5V -> 1X Nichicon VY 3300uf 16V + 1x Nichicon HV 1500uf 16V
12V -> 1X Nichicon VY 3300uf 16V
And also:
5VSB -> 1x 1500uf FL 6.3V *or* 1x Nichicon HV 1500uf 16V
Don't neglect the 5VSB, even though it's a low-power rail. Due to using flyback topology, it is actually one of the most stressful rail for caps, so only use good name-brand caps there. Both Panasonic FL or Nichcion HV will do fine here. In fact, 5VSB typically do really well with very low or ultra-low ESR... so FL or HV will do nicely... or you can use a 1000 uF polymer for one of the caps there too.
Originally posted by zunasthegreat
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