Sleeving Problem. What to do with the Capacitor?

[aver]

It is Silverstone strider plus... There new PSU

I just ordered one of these today to replace my PC&Power 750W Silencer... Now I am wondering if I should call and change that order to a different power supply. I like what Miller did with his cables, I have some extra SATA Sleeving so maybe I will try that. Where along the cable does this start?

[Kenjiwing]

I don't see why you couldnt do what Charles did on Daniels murdermod where he did the large single sleeve over the pci express cables with a big heatshrink.

[OldChap]

Maybe putting it/that section of cable in its own small box would look right? and if, as in the pic above you run 2 cables maybe the box can hold both?.....not sure what box though...black/hidden? shiny/feature?

[Diverge]

I got an old 1 farad cap at home somewhere, from my car stereo days. Sleeve that to the end of your cable, if you can fit it in your pc, and you'll won't have to worry about huge current surges

edit: In case you never seen a 1 farid cap. Here's a random pic from the internet

[Kanzy]

Thanks for all the responses, Here are couple things I had in mind

First, I think BeiBei got the answer right, the cap are meant to be there to help provide a stable power supply, but the thing is this cap is only on all the PCI-E cables, none on the cpu power or 24pin, what I am concerned about is that I think since they the power itself short using new design but somehow during the testing they found out that there are unstable voltage on the PCI-E output, then it is cheaper to add caps on the wire rather than put it inside the PSU. In general, remove the cap would be a bad idea could lead to insuffient power or a big ripple voltage could damage the video card.

As of how to sleeve it, here is another picture to help people see where is the thing at


As you can see from the picture, the cap it's acturally little further away from the cable end, about twice more of the tube on a Corsair HX, which means it would require a long heatshrink and even thou, it would still be ugly looking. And of course this is gonna be much more big and long than the Charle's murdermod.

Here is a picture shows how it compared to a Corsair HX1000 PCI-E cable



If I try to use an extender or not uni sleeve those two, the problem comes down to the cap is between a top wire and bottom wire and they are kind crossed through other wires, which means I can't uni sleeve other part either.

For now, I am getting an old silverstone ST to do the sleeve job and will sell this one here soon (stupid neweggs restocking fee), so if anyone is interested, let me know, the PSU got here less than a week and never been used.

Again, thanks for all your helps.

[Conumdrum]

Good, get rid of that ugly funky bulky cable beast. My X3 1000 watts (not the best but rated fine) is all flat cables, modular and works fine with not funny stuff on my rig in my sig. I didn't know some PSU makers did such odd things. Glad my rig missed it.........

[WeeMaan]

I was going to get a Silverstone Strider for the fully modular cables for sleeving but now I can just forget about it. :\

Are there any other good psus with fully modular cables?

[Kanzy]

I was going to get a Silverstone Strider for the fully modular cables for sleeving but now I can just forget about it. :\

Are there any other good psus with fully modular cables?

Silverstone Strider is acturally a good choice for full modular, it's the new Strider Plus series who has the problem

[irenedakota]

The cap is also there to help with heavy load surges. It will provide the "instant" power when needed helping to maintain the 12V integrity. The closer to the power draw the better!

Not 100% true (But certainly not wrong). The cap is there mainly to provide a grounding point for AC signals. Obviously you don't want random AC signals travelling all over on your DC power lines. The cap acts as a open circuit for DC, but as a short circuit for AC, thereby causing the AC noise to be grounded out of your system.

The bulge on the Corsair PSUs is a ferrite core which essentially does the same thing, just using different mechanisms (Magnetic induction currents).

You want these bypass caps/ferrite cores to be as close as you can get to the source of the potential noise (The GFX card).

The reason why the 24pin/8pin ATX cables don't get a similar treatment is that motherboards have lower switching speeds than high performance graphics cards, and motherboards have the space for larger caps.

[mav2000]

Why dont you just use extensions and keep the PSU...I have done that as getting warranty here is anyway a pain and if I did sleeve the PSU wires I would not get warranty even if the fan broke..

[Waterlogged]

Why dont you just use extensions and keep the PSU...I have done that as getting warranty here is anyway a pain and if I did sleeve the PSU wires I would not get warranty even if the fan broke..

That just about completely defeats the purpose of the caps then.

[R3alsp33dy0ne]

The cap is also there to help with heavy load surges. It will provide the "instant" power when needed helping to maintain the 12V integrity. The closer to the power draw the better!

Actually, I think you will find that these are filter caps. They are needed on almost all power supplies but are especially important on switch mode PSU's such as those used for PC's. They help filter the noise out of the power rails. High levels of noise are VERY bad for sensitive PC components. Most power supplies would have these internally but it seems that in this case they are located on the cables.

What you are referring to is commonly known as a "reservoir" capacitor and would need to be much larger than 2200u to be effective. These can commonly be seen in high current circuits such as high end car audio.

[Kanzy]

I don't think they are filters, sure there are noise, but I don't see the point that the noise is large enough that you have to use a filter. But as cap that take the AC out, they might be bigger size than they needed. 2200U is not a small cap

[Bei Fei]

Actually, I think you will find that these are filter caps. They are needed on almost all power supplies but are especially important on switch mode PSU's such as those used for PC's. They help filter the noise out of the power rails. High levels of noise are VERY bad for sensitive PC components. Most power supplies would have these internally but it seems that in this case they are located on the cables.

What you are referring to is commonly known as a "reservoir" capacitor and would need to be much larger than 2200u to be effective. These can commonly be seen in high current circuits such as high end car audio.

http://www.antec.com/Believe_it/inde...lossary&lan=us

PowerCache™

PowerCache™ is a technology that helps to stabilize the power output to CPU & video card. By adding a 2200µf capacitor at the end of the CPU and graphics cables, power can be delivered instantaneously where and when needed rather than from the power supply itself. For example, a 23A increase of demand from the CPU or GPU could cause a voltage drop of 1V causing a crash or reboot. With PowerCache™, the voltage drop will be just 0.2V, keeping the system running and stable.

[Alexandr0s]

What has me wondering is what on earth would cause an increase of 23A?!

[Kanzy]

What has me wondering is what on earth would cause an increase of 23A?!

A ripple voltage would do so. Means the voltage jump at the time you flip your switch on. Other things can cause an unstable current/voltage too, such as an lighting strike

[hazilo]

What has me wondering is what on earth would cause an increase of 23A?!

23A @ 12V = 276W
What graphic card on earth could "instantly" eat that much?

edit: Kanzy, when you swizch on your system, those caps are not loaded so they are of no use and they would make it even more unstable as a part of the current would charge it!

[Diverge]

What has me wondering is what on earth would cause an increase of 23A?!

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

[Kanzy]

23A @ 12V = 276W
What graphic card on earth could "instantly" eat that much?

edit: Kanzy, when you swizch on your system, those caps are not loaded so they are of no use and they would make it even more unstable as a part of the current would charge it!

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

[hazilo]

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?

Actually it will just ask more current to the PSU, but any PSU is normally capable by itself to increase current enough without drop of voltage, else computers wouldn't start.
For that use, the cap is useless as there are bigger ones inside the PSU that are here for that!
Unless you are using 3x 3970 in crossfirex to run several screens on eyefinity, I doubt that would be of any use.

But since they didn't put any of those magnete ring to ground high-frequency AC, I'd recommend to keep it on the cable.

[Alexandr0s]

Would it hurt to remove such a cap from your wiring? Seeing as it doesn't seem to have a very important job?

[Vinas]

The capacitor purely provides extra boost. None of this AC grounding nonsense.

[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.

[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.

[Bei Fei]

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

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