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Does This 'Metal Ring' Serve Any Purpose On PCI-E 6 pin

post #1 of 18
Thread Starter 
Hello

I am looking to take all my cables out and braid them when i upgrade, Ive taken out one of the pin PCI-E cables and cut off the heat shrink to find this ring around the 6 cables, Does it need to be there for a reason or should i just take it off and throw it?

Take a look



Uploaded with ImageShack.us

The blue cable is how it looked before.

Regards
Lee
post #2 of 18
I think the ring is to stiffen the cables so they don't bend when you plug them in. You have probably noticed that when you plug in a cable there is some stress about an inch away where it will bend or twist due to gravity, other items nearby forcing you to reroute the cable, etc.

I'd just leave it be.
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post #3 of 18
I'm not sure which psu you have but I do know the Antec Truepower Quattro has something similiar to it. The thing is it's a major feature of that psu and when they were taken off then it was majorly adversly effected performance wise.

I'd advise not taking it off, even if it wasn't at the detriment of your psu's performance.
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post #4 of 18
Its a ferrite choke, that cleans up the power. Don't take it off.
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post #5 of 18
From Tator Tot:

Quote:
Originally Posted by Tator Tot View Post
They are ferrite beads, they cut down on EMI and sometimes can help with GPU Whine (at least, some companies claim that.)

You don't need them.
I've removed them from my Corsair HX850 and haven't had any GPU or motherboard whine. YMMV
post #6 of 18
Yup that's what it is. It filters out high frequency noise from the power.
    
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post #7 of 18
Yea it's a ferrite choke. It basically reduces unwanted feedback from the GPUs or the PSU. It is a very good idea to keep it on. Without it you could get micro surges of high-frequency waves to the GPUs or the PSU and end up with dead components.
    
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post #8 of 18
i would leave them on, they put them on their for a reason :-)
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post #9 of 18
Thread Starter 
Ok... i will leave it on then

But as my PSU is right under my GFX cards i was thinking of making a short PCI-E 6+8 pin wire and plugging it in so the standard psu wire doesnt have to be coiled up around the back of the case and come back out through and plug into the gfx card

Do you see any reason why i cant make up short braided wires as i was going to and then fix the ferrite bead on?

Also my psu has 3x 6pin and 3x 8pin PCI-E and only one of the 3 6pin PCI-e has that bead on and only 2 of the 8pins have it on i dont understand why.

Regards
Lee
post #10 of 18
Ferrite chokes are just magnets... they filter out fluctuations in power..

ie- without them-> input voltage to GPU bounces from 11.9-12.23v
with them-> input voltage to GPU bounces from 12.29-12.23v

..their job is to "resist" change in the current..so they smooth the supply ripples. They dont filter out noise or do any of the other mythical things people think.
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