The issue appears related to the type of capacitors found on the rear of the PCB underneath the GPU. As explained by Igor's Lab, AIB partners are supposed to use two types of capacitors for filtering voltages: large-area POSCAPs (Conductive Polymer Tantalum Solid Capacitors) or the smaller and cheaper MLCCs...
https://www.techspot.com/news/86900-capacitor-issues-causing-rtx-30803090-crashes.html?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/news/86900-capacitor-issues-causing-rtx-30803090-crashes.html?utm_source=dlvr.it&utm_medium=blogger