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USE CODE ’THISISFINE’ on the GN store for 10% off through 11/23/22! - grab a GN coaster pack, PC building modmat, mouse mat, shirt, or more to support our work and get something quality in return! 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! New GN 3D Coaster Pack: GN PC Building Anti-Static Modmat: GN Red & Black Mouse Mat: GN Blue & Black Mouse Mat: Like our content? Please consider becoming our Patron to support us: RELATED PRODUCTS [Affiliate Links] NVIDIA RTX 4090 on Amazon: Corsair HX1500i PSU on Amazon: Handheld mini fire extinguisher on Amazon: 5lb Larger Fire Extinguisher on Amazon: Gallon of Water on Amazon: 40 lb. Bag of Sand on Amazon: 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 ** 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: f: w: Host, Testing, Writing, Video Editing: Steve Burke Testing, Research, Writing: Patrick Lathan Video Editing, Camera: Andrew Coleman