Video Description

Support our deep dives like this! Grab a GN 3D Coaster Pack: https://store.gamersnexus.net/products/gn-drink-debug-coaster-pack-4-custom-3d-coasters-100x100mm-4x4 We're running in-depth tests on the NVIDIA RTX 4090 12VHPWR adapter cables (the 12-pin cables, sometimes called '16-pin' cables) to see how they thermally compare in different scenarios. A large part of this content is dedicated to testing the current prevailing theory that the solder is weak or that the cable is easy to snap out of place. We also tested a EVGA 3090 Ti 12-pin cable for perspective on thermals versus the modern RTX 4090 solutions. Video cards used include the ASUS RTX 4090 ROG Strix, Colorful RTX 4090 Neptune OC, and NVIDIA RTX 4090 Founders Edition. Cards were tested both stock and overclocked, mostly with FurMark (but also with other tests), and they were tested with 4 different cabling scenarios (stock/unmodified, snapped at both contact points and severed at the lines, snapped at the contact but not severed at the line for overall poor contact (but continuous supply down 12V to PSU), and mixtures of these. If you have a DEAD OR BURNED cable, please follow the instructions at the timestamp below ("we could use your help" - 11 minutes and 57 seconds) to see about getting us more information. We will not reply to all emails due to volume. There's more to this story yet. While this is detailed, it is not definitive. We do not yet have a firm answer as to what causes most the failures (or if all cables are affected, e.g. by poor design leading to poor mating at the connector, as opposed to manufacturing defects). Like our content? Please consider becoming our Patron to support us: http://www.patreon.com/gamersnexus RELATED PRODUCTS [Affiliate Links] NVIDIA RTX 4090 on Amazon: https://geni.us/AwOzy Corsair HX1500i PSU on Amazon: https://geni.us/7FJQnCN Handheld mini fire extinguisher on Amazon: https://geni.us/YBPgF 5lb Larger Fire Extinguisher on Amazon: https://geni.us/hxMl Gallon of Water on Amazon: https://geni.us/COGIg6l 40 lb. Bag of Sand on Amazon: https://geni.us/ELoKb TIMESTAMPS 00:00 - Theories About the NVIDIA 12-Pin Adapters 02:15 - Current Theories & Internet Discussion 03:38 - The Test Setup: Thermocouples & Thermal Imaging 05:08 - Opening Up the Cables: Spec Differences 06:53 - Bad Construction on Igor's is Different from GN's 09:27 - Solder Method & Quality Differences 11:57 - We Could Use Your Help! 14:28 - Setup for Thermal Testing of 12VHPWR 12-Pin Adapters 17:04 - Survived 8-Hour Load with Intentionally Damaged Cable 17:30 - Results: Justifying a Thermal Camera 19:10 - Results: Worst Case Scenario Testing on Colorful Neptune 21:19 - Results: Strix & Founders Edition Cable Thermals 21:45 - Results: EVGA 3090 Ti FTW3 Cable Thermals for Reference 22:23 - Limitations of Testing vs. Theorizing 24:11 - But There is Obviously a Problem 25:07 - Some Native Cables Might Also Fail 26:09 - Next Steps & Closing Thoughts ** Please like, comment, and subscribe for more! ** Links to Amazon and Newegg are typically monetized on our channel (affiliate links) and may return a commission of sales to us from the retailer. This is unrelated to the product manufacturer. Any advertisements or sponsorships are disclosed within the video ("this video is brought to you by") and above the fold in the description. We do not ever produce paid content or "sponsored content" (meaning that the content is our idea and is not funded externally aside from whatever ad placement is in the beginning) and we do not ever charge manufacturers for coverage. Follow us in these locations for more gaming and hardware updates: t: http://www.twitter.com/gamersnexus f: http://www.facebook.com/gamersnexus w: http://www.gamersnexus.net/ Steve Burke: Host, Writing, Testing, Editing, Filming Patrick Lathan: Destroyer of Cables