Antec SP-450P caps

[davmax]

I have just purchased an Antec SP-450P in an Antec case. Because I have read there is a risk of Fuhjyyu caps I opened it up (oops there goes warranty). I found one 3000U 16V 10mm replaced with Panny FC 3000u 16V 12.5mm, and one 1000u 10V 10mm replaced with Samxon GC. The remaining caps are Teapo, I have more confidence in them so they remain.

Obviously a product produced before the recent move not to use Fuhjyyu caps.

[Super Nade]

Re: Antec SP-450P caps

Not sure if Antec really moved away from Fujjys. I have not seen any pictures of the new caps in an antec unit, thus far.

PS# Is Warney gonna play in the Ashes?

[Shroomie]

Re: Antec SP-450P caps

Hey, that's good, anyway. I don't mind seeing Teapos (my Channel Well has them) in my power supply.

[PeteS in CA]

Re: Antec SP-450P caps

As for the build date, look for date codes on the label (some S/N formats contain date code info), ICs, larger lytics, and in the PCB's silkscreen. While this may not pinpoint the build date (except for a date code on the P/S label), they will give you an idea of when the P/S was built.

[davmax]

Re: Antec SP-450P caps

Just for the record. Comparing originals with replacements

Fuhjyyu values
3300u 16V 24mohm 2000Hr @ 105C
1000u 10V 60mohm 2000Hr @ 105C

Panasonic
3300u 16V 22mohm 5000Hr @105C

Samxon
1000u 10V 12mohm 2000Hr @ 105C

Huge difference in ESR for 1000u and great life in Panasonic 3300u

[davmax]

Re: Antec SP-450P caps

The PSU works real well with replacements. Now just some additional cap differencesOriginal Fuhjyyu
1000u 10V Ripple max 0.7A
3300u 16V Ripple max 1.58A

Replacements
Panasonic
3300u 16V Ripple max 2.5A

Samxon
1000u 10V Ripple max 2.22A

The replacements have very much superior ripple current ratings making for cooler running and improving life.

[tazwegion]

Re: Antec SP-450P caps

Lower operating temperatures would be a definite bonus, considering you live in a warmer region of Oz

Just curious davmax if you noted 'slightly elevated' output following your recapping exercise?

[killjoy]

Re: Antec SP-450P caps

I just got SP-450P free. It was replaced because of squealing noise. Knowing what to expect I popped it open and took a closer look. Surprisingly all output caps are visibly ok, but 1000uF/10V caps in AUX PS are bulged. Also one of two line input caps seems that it might be bulging, so I might replace input caps as well to be safe.

Then I spotted two burnt components. Diode (pos D5?, glass) is burnt and the glass is broken so I there's really no way to know what kind of diode it was. Another burnt component is a resistor. It is also burnt beyond recognition.

I attached a picture with these two components marked with arrows. The one on the left is the diode (behind a cap, hard to get better picture of). Resistor is on the right.

If somebody has same kind of psu with these two components intact I'd be happy to know the component values.

[Brian C]

Re: Antec SP-450P caps

the Resistor is 5.6 Ohm (1W)... Green-Blue-Gold-Gold, according to the link below:
http://www.discovercircuits.com/foru...65&an=0&page=1

[bgavin]

Re: Antec SP-450P caps

The PSU works real well with replacements.

What amount of difficulty do you have recapping the PSU boards? Any problems with the traces lifting?

[PCBONEZ]

Re: Antec SP-450P caps

The "SP" in the model name -> "SmartPower" series.
The series has been out of production for a while.

According to the Antec Rep in another thread:

"The SmartPowers were ~~blah~blah~~ designed for people who turned on their computers for a few hours per day. ~~blah~blah~~ ..there was an issue with a batch of caps that were good enough to pass QC, but only lasted about 6 months in the field ~~blah~blah~~ the problem 5VSB cap would sometimes make an annoying high-pitched whine."

.

[discomike]

Re: Antec SP-450P caps

Found one of these squeeking today. The diode is a 18V 1W zener diode, 1N4647A, a bit burned but you could make out the marking. Mine also has ec10 and ec11 leaking and R11 burned. I'll replace them tomorrow and see how it goes.

[Krankshaft]

Re: Antec SP-450P caps

I just took a look at the pics I shot of my PSU before my recap.

Oddly enough on my Antec SP 500 watt PSU that resistor is omitted. The silkscreen is there but nothing is in its place check out the pic.

Antec may have omitted that resistor on future models.

As for Antec no longer using Fukyuu I saw an odd trend on their supplies. On my original Antec there was a Teapo on the 12 volt line that hadn't failed but I replaced anyways.

On my current recap the supply was older and had a bulged Fukyuu on the 12 volt line.

On my TruePower 350 Watt unit on my server in place of the Fukyuus on the standby side there were Teapos.

However the Fukyuus were still in other places on the board. This tells me that Antec probably was experimenting on where they can still use the Fukyuu caps without them failing to save a few cents. Then they could use Teapos where they HAD to. Man I hate bean counters.

As for the primary caps replace them lucky for me both of the SP 500Ws I recapped had Panasonic caps as the primaries so replacement wasn't necessary.

You have Fukyuus on the primary and with their track record I'm sure that they will fail.

[PCBONEZ]

Re: Antec SP-450P caps

Presumably during the Fuhjyyu problem models run some got Teapo when the OEM (CWT) ran short on Fuhjyyu's.

---

As for Antec no longer using Fukyuu..........

Antec didn't stop using Fuhjyyu by some company directive that said 'fix it',,,
they just stopped OEM'ing from CWT who happens to use Fuhjyyu.
- Not having Fuhjyyu's in PSU's was an inadvertent occurance I think.
- Not on purpose.

Their current models have different OEM's (that don't happen to use Fuhjyyu) but it's clear by the models that are built by Seasonic and that show up with OST and Teapo caps that their instruction to their OEMs still includes "as cheap as possible" as part of their instructions and that Antec doesn't specify to use quality caps. They leave that up to the OEM.

I would not be surprised to see new Antec PSUs using Fuhjyyu caps again in the future.

The company has great designs but their nature is to penny-pinch on the quality of the parts and I have seen nothing to indicate that has changed intentionally or as a policy.

- They got better,,, by accident.

That's just my opinion....

.

[Krankshaft]

Re: Antec SP-450P caps

I knew the SmartPowers were manufactured by Channel Well Technology but I had no idea that they were responsible for the bad caps.

I thought manufacturers specified things like that.

I can't understand how a company like Fukyuu can stay in business since their caps fail so quickly. Not only are their Low ESR caps horrible their General Purpose caps on the standby rail are horrible as well.

I do agree that I like Antec's design I wouldn't use just any supply to power my 360 which draws a massive 16.5 amps off the 12 volt rail.

When I first flipped on the power switch to the supply my lights flickered for a second because of the charging of the dual 1200 uf line filters .

However don't expect me to buy an Antec without looking under the hood for bad caps before installation .

And lets hope that the Fukyuu plague never returns.

[PCBONEZ]

Re: Antec SP-450P caps

Every OEM contract is different. - A one-off thing.
The buyer can specify what they want the builder to do in the contract.
If they don't put it in then the builder doesn't have to do it.

[ing.huub.rohde]

Re: Antec SP-450P caps

Found this forum because i had the same defects in my PS. Burnt resitor and blown zener..... Replaced these with the info on this forum.. Thanks for the effort taken!
But, while open, checked the complete PCB on weak solder joints (found several) and bad capacitors. Two had bulbs... 1000uF/10V. Measured theseTEAPO capacitors... 23uF and 189uF was all that was left of the 1000uF... So i'm not so impressed by this brand...

[KorbenDallas]

Re: Antec SP-450P caps

I found in Antec SP350 SAME problem like killjoy user. but with extra info: EC5 (22M 50v works like 2,2M ), but fizical is looking ok!) I replace TEAPO 2x1000M 10v (on stand-by line) with KZG 1000M on 16V low ers, 5R6 resistor and 18V Zenner echivalent (hope will work with romanian zenner PL18Z)

[PCBONEZ]

Re: Antec SP-450P caps

KZG don't like heat. They will fail with no bloating with too much heat.

[tenortim]

Re: Antec SP-450P caps

Found this forum because i had the same defects in my PS. Burnt resitor and blown zener..... Replaced these with the info on this forum.. Thanks for the effort taken!
But, while open, checked the complete PCB on weak solder joints (found several) and bad capacitors. Two had bulbs... 1000uF/10V. Measured theseTEAPO capacitors... 23uF and 189uF was all that was left of the 1000uF... So i'm not so impressed by this brand...

Sorry for the necro of the thread, but I had to chime in to agree with this comment - finally got around to pulling apart one of the failed SP450 units that was lying around here, and sure enough, those two Teapo 1000uF caps are bulging. Just ordered a bunch of replacement caps (removing all of the larger Fuhjyyu caps at the same time).