Sleeving Problem. What to do with the Capacitor?

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Originally Posted by Bei Fei

I don't think its all smoke and mirrors. It seems that the math works as far as I can tell.

DV = l Dt/C

C = 2200uf
Dt= 20us
I = 23A

DV = .2V

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With my 1 farad cap, I can surge up to 10,454 amps, for 20us, with the same dV =0.2V (I= C dV/dt). Makes me think of the flux capacitor and back to the future :)

Your PSU probably has a bunch of caps on it's outputs stage. Your GPU takes that 12V and drops it down to various other smaller voltages with voltage regulators (5v, 3.3V, 1.8V, 1.2V..typical IC voltages.), and has a bunch of it's own caps. I'm not saying that math or theory isn't true.. just saying it probably doesn't result in much of anything, but something to market your PSU with, that maybe your competitors don't have. It's just my opinion I guess. I could be wrong.

I'd be curious to see someone do some tests to see how it affects the various lower voltage regulators on a GPU.

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Originally Posted by millertime359

I'm pretty certain the filter caps would be in the PSU. The power should be all DC by the time it gets to that point of circuit.

I could see them as booster caps as the video basically goes from very little draw to very high draw pretty fast. I would just sleeve over it. I have excessive heatshrink on my cables, but the heatshrink doesn't look bad.

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According to Oklahoma Wolf's testing of this power supply on JonnyGuru, these caps in the wiring helped prevent some ripple/noise. He swapped out the cables with a set from another Antec modular ps, one without the caps, and the +12V rail began intermittantly displaying some quite noticeable ripple. With the proper cable, the ripple went away.

As OW said:

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I can only conclude that the PowerCache™ caps aren't just there for show - they're there because the unit's design needs them to be there. Forget the "extra power reserve" thing on the box... those capacitors have to be there primarily to make the unit itself more stable. Folks, don't run the TPQ 1200W without those cables... you want the stability they provide.

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Quote above taken from this page, bottom of page.


And as to why these caps aren't inside....the ps is really crammed tight internally and OW postulated that these caps just wouldn't fit inside, so they were put in the wiring and marketing took over.


Again, a quote from OW:

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The 12V secondary side looks to be sorely lacking in space. I guess that's why they put those capacitors on the cables - there was no room at the inn here.

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Quote taken from this page, below 8th photo examining the internals of this Enhance built power supply.

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Originally Posted by Diverge

going from idle to 3d mode on a videocard draws lots of current. Although I don't believe the hype of a 2200uF cap doing that much for current surges. It's just marketing BS mainly. Soon they will be all over our PSU cables. Like christmas tree light sets... but instead of lights, caps lol

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Originally Posted by Kanzy

But the current would have to charge the cap first before they reach the card. Would't that help to get rid of a ripple and make it stable?

EDIT: I don't think a 2200u cap would be good if there is a sudden power loss anyway. If that happens, what kind of horrible PSU that would be? Still, if they can put it on the cable, why not put them inside of the power supply. That's what I mean by saying I think I don't see the problem until the finished the PSU and put caps on the wire is the cheaper way to go

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Originally Posted by Sadasius

I find this very weird. What about the large caps in the PSU? Are they not there for the same reason? I just find it odd that the caps are not in the PSU where it should be instead of having it on the wire where I am thinking it is a cheap alternative. Damn it makes me love my X3 1000 that much more. Now it will require a big messy sleeve job to even try and hide.

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Originally Posted by Diverge

With my 1 farad cap, I can surge up to 10,454 amps, for 20us, with the same dV =0.2V (I= C dV/dt). Makes me think of the flux capacitor and back to the future :)

Your PSU probably has a bunch of caps on it's outputs stage. Your GPU takes that 12V and drops it down to various other smaller voltages with voltage regulators (5v, 3.3V, 1.8V, 1.2V..typical IC voltages.), and has a bunch of it's own caps. I'm not saying that math or theory isn't true.. just saying it probably doesn't result in much of anything, but something to market your PSU with, that maybe your competitors don't have. It's just my opinion I guess. I could be wrong.

I'd be curious to see someone do some tests to see how it affects the various lower voltage regulators on a GPU.

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the new strider plus is built by enhance just like the antec tpq 1200...a good explanation why they put capacitors on the cables ...is from JonnyGuru.com. reviewed by okw...

read the lower part

http://www.jonnyguru.com/modules.php...tory3&reid=177

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So, I can only conclude that the PowerCache™ caps aren't just there for show - they're there because the unit's design needs them to be there. Forget the "extra power reserve" thing on the box... those capacitors have to be there primarily to make the unit itself more stable. Folks, don't run the TPQ 1200W without those cables... you want the stability they provide.

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So basically, don't move the caps. ;)

The efficiency tanks if you remove those. Essentially its their way of getting around inferior internal components and design.

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Originally Posted by sprayingmango

The efficiency tanks if you remove those. Essentially its their way of getting around inferior internal components and design.

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Which inferior parts? Are you referring to the Nippon Chemi-Con on both the primary and secondary, or the Sanyos on the secondary, or maybe the Nippon Chemi-Con polymers on the VRMs, perhaps? Or that Enhance makes junk....which it doesn't. Now, if Sirfa was the manufacturer, on the other hand, I'd tend to agree with you.

Actually, I rather think you have no idea what you're talking about.

Has anyone tried using the cable without the capacitor yet? :)

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Originally Posted by dreamaxx

Has anyone tried using the cable without the capacitor yet? :)

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Read a few post above? :shrug:

Does anyone know how one could go about buying these cables for a different PSU, or possibly modding existing cables with these caps? If I did do this, would it help with noise ripple on the 12v lines of a PSU that doesn't come with them already. I have plans on maxing out a Silverstone 1500w unit and I was thinking it could use all the help it can get.