Not enough clearance for recommended 35mm for new RTX 4080 16pin connector

[I-Cyb3r-I]

Hi,

As the title says, my case fits the card but there is barely any room to get the recommended 35mm clearance for the 16 pin cable. I pre bent it to 35mm, however when in my case it touches the glass panel. It has probably about 20mm and I've heard that having it at less than 35mm can break it, and I'm really scared. Do I need to get a new case entirely and move everything out since it will damage my card in the long run?.

Cheers.

[Fake]

Messaggio originale di I-Cyb3r-I:

Don't feel safe leaving it as it is.

If you don't feel safe, get a fire extinguisher that is rated for electrical fires. Keep it near your PC/Desk.

[emoticorpse]

Take the panel off until you get the new cable?

[I-Cyb3r-I]

Messaggio originale di emoticorpse:

Take the panel off until you get the new cable?

Yeah hahah. Is it bending really a problem or am I just exaggerating this way above what is normal?.

[I-Cyb3r-I]

Messaggio originale di Fake:

Messaggio originale di I-Cyb3r-I:

Don't feel safe leaving it as it is.

If you don't feel safe, get a fire extinguisher that is rated for electrical fires. Keep it near your PC/Desk.

More so that I don’t want the GPU or whole PC to get fried. Hard to believe it being bent is going to cause issues since the old ones never did.

[Revelene]

Messaggio originale di Pirate☠️Pocah:

NVIDIA sure made a mistake with that connector.

To be fair, PCI actually made it but Nvidia and Dell sponsored it.

So, mostly PCI group's fault and the rest on Nvidia and Dell.

[PopinFRESH]

Messaggio originale di Pirate☠️Pocah:

Messaggio originale di I-Cyb3r-I:

Yup I will. But is the cable adapter safe!. I’ve heard cable mods has some reports of melting.

I don't know.

NVIDIA sure made a mistake with that connector.

It isn't an NVIDIA connector, it is a PCI-SIG connector. The PCI-SIG has also already changed the 12VHPWR spec to shorten the sense pins so as to actually detect a slight disconnect which would pose an increased risk of thermal runaway; and the PCI-SIG is replacing it with the PCIe6 spec with 12V-2x6.

@OP, if you have a more recent RTX 4080 then NVIDIA has already switched to the revision of 12VHPWR which has shorter sense pins. Igors Lab[www.igorslab.de] posted a comparison between the launch RTX 4080 and the revision after the launch of the RTX 4070

https://www.igorslab.de/wp-content/uploads/2023/07/00-Comparison.jpg

You can see that the pins have been shortened and are recessed more so if the connector isn't fully seated they will lose connection (thus the card will stop its load and drop to a low power state).

EDIT:
And no, you are not exaggerating it beyond normal. You shouldn't bend the cables beyond the their specification of their bend radius. That specification is there for a reason and a tighter bend increases "withdrawal" tension on the individual cables (e.g. the power pins on the "outter" edge of the bend) which can potentially pull the pin out of its seating in the connector.

[I-Cyb3r-I]

Messaggio originale di PopinFRESH:

Messaggio originale di Pirate☠️Pocah:

I don't know.

NVIDIA sure made a mistake with that connector.

It isn't an NVIDIA connector, it is a PCI-SIG connector. The PCI-SIG has also already changed the 12VHPWR spec to shorten the sense pins so as to actually detect a slight disconnect which would pose an increased risk of thermal runaway; and the PCI-SIG is replacing it with the PCIe6 spec with 12V-2x6.

@OP, if you have a more recent RTX 4080 then NVIDIA has already switched to the revision of 12VHPWR which has shorter sense pins. Igors Lab[www.igorslab.de] posted a comparison between the launch RTX 4080 and the revision after the launch of the RTX 4070

https://www.igorslab.de/wp-content/uploads/2023/07/00-Comparison.jpg

You can see that the pins have been shortened and are recessed more so if the connector isn't fully seated they will lose connection (thus the card will stop its load and drop to a low power state).

EDIT:
And no, you are not exaggerating it beyond normal. You shouldn't bend the cables beyond the their specification of their bend radius. That specification is there for a reason and a tighter bend increases "withdrawal" tension on the individual cables (e.g. the power pins on the "outter" edge of the bend) which can potentially pull the pin out of its seating in the connector.

Thanks for that insight. I’ve got it plugged in all the way, with no room to wiggle and I do have the newer 4080 as I got it this week. I’ve heard different people say different things, some say the bend didn’t matter and it was about seating it properly. As it stands I have no room in my case for that clearance. The adapter will help, but I’m not sure if it will bend against the bottom of my case.

[I-Cyb3r-I]

Also the card I purchased, RTX 4080 Gigabyte Gaming OC had no warnings or manuals in the box saying not to be he the cable a certain way. It only had the bracket install, warranty card and then a small how to insert GPU to PC.

I read about this cable clearance off the internet and from other manufacturers manuals.

[Haruspex]

https://store.cablemod.com/12vhpwr-angled-adapter/

[I-Cyb3r-I]

Sold out pretty much everywhere. The cable is pushed in and seated fully with no gaps, and it’s pressed against the glass. No chance of it moving on its own but may wear the cable.

[_I_]

bent wire is fine, but putting stress on the connecting joint isnt good
when its not in straight is when it causes problems

[Supafly]

Messaggio originale di I-Cyb3r-I:

may wear the cable.

Cheap, thin gauge wire may break but these are of a thicker gauge so breakage by bending shouldn't be an issue. Even if a cable is of thin gauge you can usually offset some breakage risk by having the cable warm before bending as warmer = more pliable. Colder they are the more brittle they get. Not that it matters as these should not be of such a thin gauge that breakage by bending would be an issue

[I-Cyb3r-I]

Messaggio originale di _I_:

bent wire is fine, but putting stress on the connecting joint isnt good
when its not in straight is when it causes problems

Yeah. It’s in all the way and there is no room for it to wiggle, but it’s being pressed by the glass. Main concern is it is too close to the connection port and being pushed inwards and overtime this will cause problems or even melting due to heat from the GPU.

However I can geg a 90 degree adapter I just think the bend would be much better since it’ll still be less than the recommend, but at least not pressing against the glass.

[_I_]

the glass pressing on the connector can force it out of position by enough

[I-Cyb3r-I]

Messaggio originale di _I_:

the glass pressing on the connector can force it out of position by enough

Yeah I’m going to get an adapter to solve this. It may be fine now, but I think over time it’ll cause issues.