EVGA 3090 fixed by NF.Flux from NorthRidgeFix

Video Description

For repair, please contact me by following the link in the channel ABOUT page. I accept donations via PayPal at paypal.me/tonynameless and STRIPE https://donate.stripe.com/9AQ3ew4sPaqWe9W7ss Tools, schematics, boardview files etc are available here https://drive.google.com/drive/folders/12XQpmc9tLwlRQjlo3Mn_XwKlVcV8XYGI?usp=sharing My thingiverse page https://www.thingiverse.com/tonycstech/designs 0:00 - Introduction to the EVGA 3090 Kingpin repair. 0:11 - Discussion and review of a new multimeter. 1:02 - Reasons for disliking the new multimeter (screen issues, hold mode). 2:20 - Annoying auto-hold feature in resistance mode. 3:00 - Bluetooth feature and voltage measurement differences. 4:18 - Initial diagnosis of the EVGA Kingpin GPU, "PEX low" error. 5:21 - Disassembling the GPU. 6:11 - Inspecting the GPU board for damage and liquid residue. 7:48 - Review of the Mechanic 8K microscope camera. 9:03 - Measuring voltages and resistances on the GPU board. 10:00 - Identifying a dead 0-ohm resistor. 11:07 - Applying North Fix Flux and comments on its properties. 12:53 - Removing the faulty resistor. 13:05 - Cleaning the hardened flux. 14:18 - Finding a replacement 0-ohm resistor. 14:53 - Soldering the new resistor using hot air. 15:58 - Cleaning the new flux application. 16:30 - Discussion on different types of flux for micro soldering. 18:15 - Discovering a new short circuit after resistor replacement. 19:00 - Using a thermal camera to locate the short. 20:49 - Identifying and removing a shorted capacitor. 21:16 - Verifying the short is gone and PEX voltage is present. 22:38 - Testing the GPU for a display picture. 23:05 - Confirmation of GPU repair and notes on the flux syringe. 24:05 - Preparing to replace thermal interface materials. 24:16 - Rant about North Fix Flux and the creator. 26:53 - Measuring thermal pad heights for replacement. 28:47 - Upgrading cooling with stacked thermal pads. 29:36 - Inspecting thermal pad placement under the microscope. 30:35 - Mounting the cooler and managing cables. 31:40 - Demonstrating the multimeter's annoying auto-hold feature. 32:16 - Highlighting the multimeter's ability to measure low core resistance. 32:59 - Modifying the heatsink fin for cable routing. 34:00 - Running the cable through the modified heatsink. 34:44 - Discussing the improved cooling design. 35:33 - Questioning the special nature and cost of Kingpin cards. 36:20 - Final power-on test and display verification. 36:56 - Performing stress tests and observing cooling performance. 38:46 - Conclusion: The hybrid cooler is busted and needs replacement.