Whoops?: Cablemod 12VHPWR cable also melts
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vestibule
Crazy.
The trouble with plastic is once you start to hit 100c and its on its way. @120c in most cases its liquid.
Astyanax
https://cdn.discordapp.com/attachments/395665775077359626/1065924853217112094/image.png
These are nylon connectors and the melting point is well above 150c, usually its 180 and above with people designing to spec not allowing melting points below 200.
This user had it plugged in fully? i have an image to respond to that.
vestibule
There are so many plastics that could be used, but yeah nylon makes a lot of sense. No so much for heat but its plug ability. But obvs heat in this case is also a critical component
Maybe they could have used one on the more denser plastics. Some thing like a anti static ABS but then that would be potentially brittle.
Sure is a conundrum and I'm very glad its not my problem. 😕
H83
For me, the question remains about the "real" need of this new power connector...
kakiharaFRS
tried this CP-8920331 Premium Individually Sleeved 12+4pin PCIe Gen 5 12VHPWR 600W cable, Type 4, BLACK
https://www.corsair.com/uk/en/Categories/Products/Accessories-|-Parts/PC-Components/Power-Supplies/Premium-Individually-Sleeved-Type-4-12VHPWR-Cable/p/CP-8920331
as an electronician I was already wary of the dubious decrease in wires but since they all went through that absurdely tiny connector anyway (smaller than a single pcie8 for those who never saw one and think it's larger, it's not it's slightly wider but less high and both the wires and connecting pins are smaller) here's my full experience :
- the 1st thing I noticed when I bundled the wires toghether with ties was the warmth of the cables near the gpu connector, not burning hot but like 60°C "oh....."
- "oh that's what the comb was for...to spread the wires and help cool them (at least for a portion of their length)
- moved the comb around so has to spread them and allow airflow (from the only pc case design that should exist singe corsair crystal 680x and lianli 011 dynamic exist, a separate psu compartment and bottom fans airflow) and it worked the wires were noticeably cooler
- "ok fine then it looks pretty ugly to be honest and you need to have a large wide spread of cables running through your case but okay...
- no benefit in visual but neither in ease of install as you still need a good 30-35mm gap and you absolutely cannot bend them sideways that's a pretty big bummer
"but wait there's more...."
- benchmarked a while, open side panel so I can touch the cable fo warmth and check the connection plug was perfect and then...
- then came the smell, anyone who already burned a gpu knows it the smell of power stages burning... EMERGENCY SHUTDOWN !!!
- aftermath I expected the smell coming from the wires or corsair connectors but nope it was coming from the gpu power stage area where the infamous coils are
- instant regret of trying this cable, put back the official nvidia 3-1 I got with the 450w 5090 and....everything was fine again and has been for 40hrs+ of gaming
I only hope I didn't damage much my card but it was that's a certainty...I don't care to know why or how this happened I already have a work and Corsair and nvidia aren't paying me
all I can say is don't even try or blame only yourself, you have been warned
Vlooi
fantaskarsef
AuerX
I was never thrilled about using this connector, and was pretty loud about it when it arrived.
That said, I use one now and it has given me no grief, both with the Nvidia adapter and lately with a 2 8 pin to 12WHPWR from modDIY.com with a RTX 4080.
It is what it is.
Airbud
Astyanax
0blivious
I suspect another issue beyond the flawed design is the quality. Most of our connectors are being made as cheaply as possible (always have) so this new, flawed design is just a recipe for potential failure.
TheDeeGee
Krizby
Cablemod 8pin also melt, just shitty QC i guess
https://www.overclock.net/threads/cablemod-pci-e-cable-connector-melted-in-my-rtx3090.1795455/
schmidtbag
ttnuagmada
If you look at the pictures, it's clear as day that this guy did a stupid, and is blaming Cablemod. He clearly looped the cable underneath the GPU, had the connector smashed up against the side-panel, bending it down, and causing a bad connection on the top row of pins.
Astyanax
schmidtbag
ttnuagmada
TimmyP
This cable must have been designed after the GPU was, and power requirements were re-assessed.
MonstroMart
Still feel like part of the problem is how big those cards are. They barely fit most midle tower cases. Often the cable has to be squeezed for the card to fit. I have a Corsair Airflow 4000D and looking at how big most 4080 are they would hardly fit in my case. Sqeezing the cable to fit the card surely doesn't help.