PSU worth replacing caps?

[Behemot]

Re: PSU worth replacing caps?

Thanks for pics. Looks like some chinese spin-off to me, it indeed is Samson, not Samxon, they copied their GF series lol. Maybe Man Yue really made those for some garage brand, who knows, anyway, I guess they will tell me they have nothing in common with that and can't make it.

I think you may be able to fit the KYA 3300/6,3 in there, or KZN 1500/6,3 is safe option. To my knowledge there is no quality 2200/6,3 D8 cap suitable there and most of the 1800/6,3 are too low ESR and short lifetime.

Anyway for 1100 W I would use all D10 caps 3300 uF and those 16V (on +12V rail) KZN, such powerfull units can benefit from high capacity and low ESR/high ripple current.

[mikay786]

Re: PSU worth replacing caps?

That's fine, so you can supply for all A-H?

[stj]

Re: PSU worth replacing caps?

aaaa fuck!
none of those caps actually exist in the makers datasheets!

o.k. i'll have to just find stuff that will fit and work.
probably a combination of panasonic FR and FK series.

btw, dont overlook small caps - if you cant reach them - use longnose pliers.

[Behemot]

Re: PSU worth replacing caps?

A) 2 x Toshin Kogyo 3300uF 10v (UTWKZ) D 10mm H 30mm
B) 1 X Toshin Kogyo 2200uF 16v (UTWKZ) D 10mm H 25mm
C) 2 x Capxon 3300uF 16v (C725) D 10mm H 30mm
D) 1 x Capxon 2200uF 10v (C723) D 8.2mm H 25mm
E) 2 x Samson 2200uF 10v (SGF) D 10mm H 20mm
F) 1 x Samson 470uF 16v (SKM0702) D 8.2mm H 15mm
G) 1 X Samson 220uF 16v (SKM0702) D 6.2mm H 10mm
H) 1 x Samson 2200uF 10v (SGF0702) D 8.2mm H 30mm

A, E -> NCC KYA 3300/6,3
B, C -> NCC KZN 3300/16
D, H -> NCC KZN 1500/6,3
F -> NCC KZM 470/16 (or KZH 680/16)
G -> Rubycon YXJ 220/25

Alltogether it seems to be for 123 CZK or about 3,2 in sterling. Shipping seems to be 90 or 2,4.

[stj]

Re: PSU worth replacing caps?

well i managed:
A) 2 x Toshin Kogyo 3300uF 10v (UTWKZ) 10mm > EEUFK1A272L <2700uf
B) 1 X Toshin Kogyo 2200uF 16v (UTWKZ) 10mm > EEUFK1C222L
E) 2 x Samson 2200uF 10v (SGF) 10mm > EEUFR1A222L
F) 1 x Samson 470uF 16v (SKM) 8mm > EEUFR1C471
G) 1 X Samson 220uF 16v (SKM) 6.3mm > EEUFR1C221
all panasonic from farnell

[Behemot]

Re: PSU worth replacing caps?

There is no reason to use only 2200uF caps in 1100watt unit, I wonder why they even used them, its way too small capacity.

I searched for some reviews, there are not many, HardOCP measured 60 mV on +12 V, TweakTown about 100 mV on similar platform in Tagan.

[stj]

Re: PSU worth replacing caps?

you are far too trusting in labels.
i dont think i trust the label on anything after AT supplies.
AT stuff was well built and honest about power output.

[Behemot]

Re: PSU worth replacing caps?

Wut?

[stj]

Re: PSU worth replacing caps?

ATX labels are full of lies.

[Behemot]

Re: PSU worth replacing caps?

KYBs 2200/16 (D10x30) are on the way though it is getting somewhat longer. I expect them by late august/beginning of september.

Finally just got oder confirmation, they say delivery date is late october, eh…they should come with KZH 1200/6,3 (D8x15) and KYB 680/35 (D10x20).

ATX labels are full of lies.

What do you mean? That they have not actually loaded the unit with 1100 watts and they've been actually daydreaming and it burned at 800 watts or? http://www.hardocp.com/article/2008/...6#.VZ_N1ENIX6M

[stj]

Re: PSU worth replacing caps?

these tests are run for hours at the most, not days or weeks.

[Pentium4]

Re: PSU worth replacing caps?

This is a good PSU. It'll do its rated wattage. Maybe only @25C but still. It's the same platform as this ePower:
Only full bridge unit I've ever seen. Did yours come with a San Ace fan?

Samson caps are horrible, I'd put them down there with Jee/Rulycon. Glad you're replacing all the caps! I'd be curious to know the capacitance and ESR of the caps you pulled.

[mikay786]

Re: PSU worth replacing caps?

Cheers guys, much appreciated

[mikay786]

Re: PSU worth replacing caps?

Behemot, got to a 3 smaller caps and removed them

I) 2 x Capxon 47uF 25v (C729) D 5.2mm H 12mm
J) 1 x Samson 22uF 50v (SKM0702) D 5.2MM H 12mm

[stj]

Re: PSU worth replacing caps?

I) 2 x Capxon 47uF 25v (C729) D 5.2mm H 12mm > EEUFR1E470
J) 1 x Samson 22uF 50v (SKM0702) D 5.2MM H 12mm > EEUFR1H220

[mikay786]

Re: PSU worth replacing caps?

Thanks stj,

A) 2 x Toshin Kogyo 3300uF 10v (UTWKZ) 10mm > EEUFK1A272L <2700uf
B) 1 X Toshin Kogyo 2200uF 16v (UTWKZ) 10mm > EEUFK1C222L
E) 2 x Samson 2200uF 10v (SGF) 10mm > EEUFR1A222L
F) 1 x Samson 470uF 16v (SKM) 8mm > EEUFR1C471
G) 1 X Samson 220uF 16v (SKM) 6.3mm > EEUFR1C221
I) 2 x Capxon 47uF 25v (C729) D 5.2mm H 12mm > EEUFR1E470
J) 1 x Samson 22uF 50v (SKM0702) D 5.2MM H 12mm > EEUFR1H220

C) 2 x Capxon 3300uF 16v (C725) D 10mm H 30mm
D) 1 x Capxon 2200uF 10v (C723) D 8.2mm H 25mm
H) 1 x Samson 2200uF 10v (SGF0702) D 8.2mm H 30mm

Did you have anything for C/D/H?

[stj]

Re: PSU worth replacing caps?

not panasonic i dont.

i could look at some Rubycon and NCC etc datasheets later.
but those 8mm ones are a bastard, those ratings are usually 10mm in diameter.

[mikay786]

Re: PSU worth replacing caps?

any 10mm ones, as should be able to fit

[stj]

Re: PSU worth replacing caps?

double check that if i where you.
you have some 10mm caps - see if you can fit them in the 8mm spaces.

also that 10mm 3300uf cap would normally be 12.5mm

[mikay786]

Re: PSU worth replacing caps?

Does it matter if they touch? its tight but I can squeeze 10mm ones in there