OCZ Failed Capxon Caps

[mikalcarbine]

Hey all,

I have an OCZ Powerstream 600W (OCZGSX600) that has been faithful to me for many years but recently has failed. I cracked it open to find it full of Capxon caps with one noticeably bulged leaking top. I ran to Radioshack () to grab a similar cap and swapped it out with no help, then discovered another nicely hidden cap that has also blown. I've decided to recap the whole PSU with some quality caps

Here is an inventory of what's on the PSU

Capxon Caps
(1) 420uF 420V LP 85C
(2) 2200uF 6.3v KF 105C (Labeled C710)
(5) 1000uF 16v A3C1 105C
(1) 47uF 25v

One oddball OST Capacitor
(1) 2200uF 16v

I can't seem to find many 420uF caps so I'm going to swap it for a 470uF 105C similarly sized. My big question is could someone recommend me a quality brand/series to replace these with?

[mariushm]

Re: OCZ Failed Capxon Caps

OCZGSX600 tells me that's a GameXStream power supply, not a powerstream.

There's no CapXon LP series rated for 420uF and 420v - in fact 420uF is not a standard value, so you'll have a hard time finding any such capacitor. You probably mean 470uF. Either way, for that primary capacitor, the capacity can vary a bit, it's not critical.

470uF / 420v is 40mm in diameter, 52 mm in height, the ripple is 3.9 A (but this value is basically Capxon bullshit).

2200uF 6.3 v have 1470mA ripple and 0.095 impedance.
1000uF 16v have about 1350mA ripple and 0.06 ohm impedance. (if they're also KF series)

You need to pick capacitors that have equal or higher ripple, along with equal or slightly lower (but not by much) impedance. Last, make sure they fit: the capacitors seem to be all 10mm in diameter but who knows, some may be 8mm and 10mm ones won't fit.

470uF 420v replacement:

http://www.digikey.com/product-detai...239-ND/1966768
http://www.digikey.com/product-detai...619-ND/1004280
http://www.digikey.com/product-detai...903-ND/1755568
http://www.digikey.com/product-detai...904-ND/1755569

2200uF 6.3v


http://www.digikey.com/product-detai...1491-ND/756007
http://www.digikey.com/product-detai...1472-ND/589213
http://www.digikey.com/product-detai...1712-ND/589453
http://www.digikey.com/product-detai...0204-ND/266214

1000 / 16


http://www.digikey.com/product-detai...2TB-ND/2504159
http://www.digikey.com/product-detai...0253-ND/266262
http://www.digikey.com/product-detai...1527-ND/756043
http://www.digikey.com/product-detai...1526-ND/589267

2200 16 is only available in 12.5 mm diameter

http://www.digikey.com/product-detai...2369-ND/613730
http://www.digikey.com/product-detai...1667-ND/756183
http://www.digikey.com/product-detai...1532-ND/589273


47uf / 25v - you can replace with one rated for 35v or 50v, it doesn't matter


http://www.digikey.com/product-detai...1896-ND/589637
http://www.digikey.com/product-detai...1858-ND/589599
http://www.digikey.com/product-detai...1232-ND/356135
http://www.digikey.com/product-detai...0CT-ND/3072240
http://www.digikey.com/product-detai...2004-ND/756520

[Peter9DO]

Re: OCZ Failed Capxon Caps

If I may add you can find all of these value caps on Mouser.com as well, they don't have any min purchase. Also, you can get Panasonic caps, which in my opinion are the best ones you can get and they are the only ones I use when I replace a cap. You will find all of these in Panasonic's FM Series and FC Series Caps.

[mikalcarbine]

Re: OCZ Failed Capxon Caps

Thanks for the reply! You are right about the GameXStream, it's been a while since I've tinkered with my PC

The bizarre thing is that the cap is indeed a 420uf 420V (or at least labeled so), I have it right here in my hand. I couldn't even find that value in the Capxon LP series datasheets and that's what made me end up posting here haha. It's measured case size is 30mm wide and 47mm long

I'll pull the rest of the caps and ensure their specs match before ordering, thanks much!

[mariushm]

Re: OCZ Failed Capxon Caps

I may have an old datasheet then. Weird.

Then my recommendations for the large capacitor won't be good, as the smallest I linked to is 35 mm in diameter.
Go through the capacitors section there, filter by voltage, capacitance and diameters that would work on your power supply, then sort by ripple so that the highest value is at the top.
Then go through them and pick one that's in stock and has a convenient price and a reasonable ripple value ( I would say 2A or better)

As for the others, I don't contradict Peter, there are much better capacitors than the ones I recommended, but those series I picked capacitors from are closer to the specifications of the old capacitors.

The old capacitors have kind of a high ESR/impedance for a power supply at 0.06-0.09 ohm, so it may not be impossible that the power supply relies on this impedance to stabilize the output. Going with too good capacitors with much lower impedance may cause issues with the power supply.

The series I chose from are if I remember correctly Panasonic FC, FM, FR united Chemi Con lxz, kze, ky , Nichicon he, pw

[mikalcarbine]

Re: OCZ Failed Capxon Caps

The plot thickens...

the 1000uF are 105C SY series, however the SY series datasheet I found only says the series is from 1-330uF... wtf?

[mariushm]

Re: OCZ Failed Capxon Caps

They can't be SY because SY is a miniature series, only 7 mm in diameter. I doubt yours are of such small diameter.

FSP (the company that made the psu for ocz) isn't usually that stupid.

[mikalcarbine]

Re: OCZ Failed Capxon Caps

Turns out they were TEAPO SY series caps haha

I've found good replacements for all of the caps now. They're all panasonic FR series except the oddball sized 2200uF 8x25mm, the only one I could find with this size was Nichicon HM series at 8x20mm

The LP spec sheet for the 470uF doesn't give impedance numbers, neither does the replacement I found

https://www.digikey.com/scripts/dkse...=EET-UQ2S471KF

[BigTroll]

Re: OCZ Failed Capxon Caps

I put a OCZ StealthXtreem SXS600 watt in my GFs PC hope them caps hold up

[c_hegge]

Re: OCZ Failed Capxon Caps

^
If they are CapXon, then they won't.

[BigTroll]

Re: OCZ Failed Capxon Caps

Just an update that OCZ SXS600 is still going strong after all these years.