The Truth About NVIDIA’s RTX 4090 Adapters: Testing, X-Ray, & 12VHPWR Failures

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Published 2022-11-16
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The RTX 4090 12-pin cables (12VHPWR connectors) have been in the news for burning, melting, and the theories surrounding them for a few weeks now. We ran our first test piece early because we were at a stage where we needed more cables from viewers -- we got some! With the help of our audience sending in a few failed cables, we were able to reach 3 firm conclusions (or, really, 2+1) of causes for failures of these adapter cables (and unadapted ones, too). Of course, there may be even more reasons -- but we believe these 3 to be the primary ones. Between foreign object debris in manufacturing (seems uncommon, but a cause) and user error, we were able to make a few cables melt. On the user error front, remember one key thing: Even if yours doesn't start fully unseated and is only partly unseated, it can work its way loose over time if you move cables around, do some cleanup, move the system, etc.

Watch our first video in this series!    • Testing Burning NVIDIA 12VHPWR Adapte...  

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RELATED PRODUCTS [Affiliate Links]

NVIDIA RTX 4090 on Amazon: geni.us/AwOzy
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Handheld mini fire extinguisher on Amazon: geni.us/YBPgF
5lb Larger Fire Extinguisher on Amazon: geni.us/hxMl
Gallon of Water on Amazon: geni.us/COGIg6l
40 lb. Bag of Sand on Amazon: geni.us/ELoKb

TIMESTAMPS

00:00 - Melting the RTX 4090 12VHPWR Cable
02:42 - Background & Frequency of Failure
03:51 - What Cables Can Fail
06:13 - What Makes 12VHPWR Cables Fail
08:04 - Disclosures & Responsible Reporting
09:12 - Debunking the Weak Solder Joints Conclusion
11:44 - Testing Terminal Splits
13:58 - Reasons for Failure: Foreign Object Debris
15:21 - Smoking Gun & Potential for Some Manufacturing Defects
17:50 - Partial Insertion & User Error
22:24 - Conclusions: Some User Error, Some Manufacturer Defects
23:52 - Conclusions: Recapping the Reasons
26:39 - How Small User Error Becomes Big
27:28 - Quick Monologue on Reporting

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Host, Testing, Writing, Video Editing: Steve Burke
Testing, Research, Writing: Patrick Lathan
Video Editing, Camera: Andrew Coleman

All Comments (21)
  • @GamersNexus
    Sorry it took so long to put this all together! Thank you so much for the interest and patience the last few weeks on this story! USE CODE 'THISISFINE' on the GN store for 10% off through 11/23/22! store.gamersnexus.net/ - grab a GN coaster pack, PC building modmat, mouse mat, shirt, or more to support our work and get something quality in return! Watch our first video in this series! https://www.youtube.com/watch?v=EIKjZ1djp8c New GN 3D Coaster Pack: store.gamersnexus.net/products/gn-drink-debug-coas… GN PC Building Anti-Static Modmat: store.gamersnexus.net/products/modmat-volt-large GN Red & Black Mouse Mat: store.gamersnexus.net/products/gn-red-black-hud-mo… GN Blue & Black Mouse Mat: store.gamersnexus.net/products/gn-wireframe-mouse-…
  • @oleost
    I’m no cable expert, but in regards to not properly plugged in this should be easily avoided if a single signal pin was shorter and not allow current to pass through unless it has contact..
  • @AND1TFC
    The fact that y'all guys took so long to release the video just to make sure that there's an actual problem it's something i really appreciate, love you guys
  • @isoSw1fty
    The smell of a burning 4090 smells very similar to the burnt hole in the wallet from purchasing it.
  • @AvWoN
    I was very surprised that when I just got my 4090 after this video, I plugged it in fairly hard, looked flush, and still managed to pull it out easily with a little wiggle. Glad I was able to catch this and prevent a potential burnt GPU after months/years of use and the occasional cleaning that might have loosened the 12 pin. HUGE!
  • @DanSong47
    GN is literally irreplaceable at this point. Thank you Steve and team for your dedication 👍🏼
  • @kornydad14
    Great job Steve and the GN team. As an engineer myself that has had to do substantial failure analysis like this, people do not realize the amount of time and effort that is spent trying to recreate failure modes. Consulting with experts and the trial and error involved wit reproducing failures all take a ton of time. Most people, even engineers, also struggle with jumping to conclusions and not following the data to consistently reproduce a failure. This often results in fixing nonexistent issues and missing the actual failure mode. Excellent, excellent work.
  • @chubbysumo2230
    this has aged really well, but at what point do we start blaming the connector spec and not the user, because if its that hard to plug in correctly, then most users are gonna struggle.
  • @shadow7037932
    Steve, I'm so damn glad my Patreon support money is going in to content like this. Sending this stuff to get X ray/scanned probably cost a pretty penny.
  • @FabianC00
    This is why I'll never get tired of supporting GN. Thank you for all the work Steve and crew!
  • @Microdot2003
    Great coverage on this issue. I very much appreciate your approach in reporting data backed theory without jumping straight to making over confident claims based on your findings. This channel just keeps gaining value as a resource and advocate for consumers in the PC hardware/tech space. Thank you!
  • Thanks for doing this; this is awesome. Hope you guys grow and continue to put dedication in as tech reviewers/auditors/etc., or whatever other opportunities comes your way.
  • @czcibor6436
    Thanks Steve. Whole GN team is a pinnacle of quality IT journalism in any cases, like this one. Keep it up
  • @jayhall1234
    This whole saga is like watching an air crash investigation episode. Good work as always and im glad to know there's someone out there actually looking into things like this
  • This is probably the best video on the channel. Gives me some Air Crash Investigation vibes here, where in many episodes the media, public and random "experts" on the Internet are coming up with more and more "versions" of what happened, in the meantime the investigators are honestly doing their job to determine exactly what went wrong and how to prevent it from happening again.
  • I love your guys deep dives into investigations of problems, companies, and reviews. You dont just pull your stuff from other reviews and always do your own reviews and put a lot of your reviewing to test way beyond what anyone else does. Your testing to the point that some engineers didn't even take into account at the time of designing or didn't care to. When you do surface contact or the coolant used in a AIO causing failure of its pumps, I'm just blown away and as a big technology guy I love your break downs.
  • @WestonHawk
    That footage of inserting the connector was really insightful. The amount of force it takes to push it in is way more than I expected. It looks so tight only half way down!
  • @DownUnder43
    Thanks for your dedication. Without your hard work big corporations like Nvidia could never be challenged in the past.
  • @veltriix
    This is my very first time donating to any YouTuber in my 10 years watching videos, and watching the entire video, being entertained and informed at the same time is an amazing accomplishment. I am well informed about the issue and have been enlightened. You guys deserve any donations for the countless hours you guys did to bring an informative and objective light into this issue. Keep it up and I will continue watching your guys' content!
  • @tonederf6419
    I've seen this video a few times, just wanted to comment to help boost visibility. Love what y'all do, keep it up.