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Are your Seasonic cables melting?

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Old 26-02-2014, 04:26 AM   #1
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Are your Seasonic cables melting?

Originally Posted by Sea Sonic Rep View Post

Hi All, my apologies for the late update, our HQ wanted to be certain of their test results prior to any posting.

Our QA team has tested a very large sample set of the cables which were delivered to our factory and found every unit to be within specification. Through testing by our QA team, they have found that if the inner diameter of the female pin on the PCIe cable connector is slightly larger than spec, so even though the connection is properly made, the high load of the high power VGAs will cause the connector to overheat. This is why we see this issue happen with the R280/290 & 7950, 70 & 90 cards.

We are now auditing our suppliers, this will take some time as we must check their process, QC, etc. The material usage is all correct so it can be something during protection that caused the issue, this is still to be confirmed.

In the meantime, we are preparing some extra PCIe cables from our factory, with extra testing for size compliance, and should be ready in 2 weeks +/-, so if anyone would like to have replacement cables, please contact us at: support@seasoniceu.com, regardless of your geographic location.

Please provide the following:
Full model number
Serial number
A copy of the purchase invoice
The type of VGA cards used
Full name & mailing address

Thank you.
This seems to be a new issue. Anyone encountered this problem? And we can rma also?

So seasonic saved me from a fire, or did it? - Page 16
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Old 26-02-2014, 07:21 AM   #2
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Hmm so only those using high load gpu will be affected? I'm not even using any GPU
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Old 26-02-2014, 10:48 AM   #3
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I hv 7 pcie cable...,
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Old 26-02-2014, 02:17 PM   #4
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Seasonic distro is corbell is it? Better check my cables
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Old 26-02-2014, 02:29 PM   #5
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Seasonic distro is corbell is it? Better check my cables
Yup it corbell, btw dunno which batch or what psu come with this cable....
Dun think seasonic hav enough cable to replace lol
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Old 26-02-2014, 06:02 PM   #6
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My 2x680 too weak. Cables wont melt.


*Those people mining using 290X should take note.
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Old 26-02-2014, 07:17 PM   #7
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My 2x680 too weak. Cables wont melt.


*Those people mining using 290X should take note.
Dunno how my 780ti
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Old 26-02-2014, 08:55 PM   #8
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Maybe only happens to Mining PCs
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Old 26-02-2014, 09:12 PM   #9
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Why only amd cards can melt the cable?
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Old 26-02-2014, 09:22 PM   #10
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Why only amd cards can melt the cable?
Coz they are designed to throttle at 95 C degrees.

But, somehow if the cable can melt at just 95 C degrees, it speaks a lot on the quality. Shouldnt the melting point be higher than boiling point of water at least?
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Old 26-02-2014, 10:41 PM   #11
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Coz they are designed to throttle at 95 C degrees.

But, somehow if the cable can melt at just 95 C degrees, it speaks a lot on the quality. Shouldnt the melting point be higher than boiling point of water at least?
Shadow ah, GPU core temp and cable melting is two totally irrelevant matters

The cable can potentially melt because of how the pcie 6/8 pin is designed. 6 pin connectors have 3 12v 3 grounds supporting up to 75w theoretically, 8 pins have 3 12v 5 grounds able to do 150w. So you see its the number of ground leads limiting the current because of cable size(awg) and a few other stuff like resistance across the parts etc.

If the female PCIE connector pin is bigger than spec, that means during normal use the male pin will only be contacting just a part of the pin contact surface instead of the entire surface(or worse not contacting at all meaning one less ground lead), hence increased resistance(presumably) which ultimately leads to the wire inside heating up like slow boiling and that is how the cables are likely to melt.

Pic for reference for easier consumption

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Old 26-02-2014, 10:45 PM   #12
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Shadow ah, GPU core temp and cable melting is two totally irrelevant matters
If they're the same, I can recommend Seasonic to use my oven electric cord material.
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Old 26-02-2014, 10:46 PM   #13
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Shadow ah, GPU core temp and cable melting is two totally irrelevant matters

The cable can potentially melt because of how the pcie 6/8 pin is designed. 6 pin connectors have 3 12v 3 grounds supporting up to 75w theoretically, 8 pins have 3 12v 5 grounds able to do 150w. So you see its the number of ground leads limiting the current because of cable size(awg) and a few other stuff like resistance across the parts etc.

If the female PCIE connector pin is bigger than spec, that means during normal use the male pin will only be contacting just a part of the pin contact surface instead of the entire surface(or worse not contacting at all meaning one less ground lead), hence increased resistance(presumably) which ultimately leads to the wire inside heating up like slow boiling and that is how the cables are likely to melt.

Pic for reference for easier consumption

Sorry ah, me not electrical trained...
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Old 26-02-2014, 10:48 PM   #14
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wah. better RMA if can?
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Old 27-02-2014, 06:45 PM   #15
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Would an indication of melting cables be a system crash? (Similar to BSOD when GPU temp exceeds safe limit?) If not, what are the indicators of such an event occuring?
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