AMD Ryzen 7 7800X3D Swells and Burns Again, This Time on an ASUS Crosshair X670E Hero

Another Ryzen 7 7800X3D has reportedly swollen and burned, while also damaging the ROG Crosshair X670E Hero motherboard in the process. UNIKO’s Hardware flagged the case, citing a video posted to Bilibili as the original source. The video shows a Ryzen 7 7800X3D CPU with clear swelling on the underside where it made contact with the CPU socket. There is discoloration on both the CPU and the socket itself. Moreover, the socket pins are warped and damaged in the middle, presumably due to the pressure of the swelling. One peculiar finding is that one of the notches on the CPU socket looks slightly off. Perhaps more importantly, the board’s BIOS version wasn’t confirmed, which is directly relevant due to AMD’s proposed fix.

This kind of failure first showed up in April 2023, when several 7800X3D and 7950X3D chips bulged and took their sockets with them on X670E boards. AMD pinned it on SoC voltage running too high and rolled out AGESA firmware that capped it at 1.30V across AM5 motherboards. This new case might be straightforward if the BIOS hadn’t been updated at all. However, even after the BIOS fix, the reports never fully stopped. Just weeks ago, a 7800X3D reportedly burned out on an MSI PRO X870-P WIFI board running the latest BIOS, with EXPO enabled and nothing else touched. We have even seen reports of Ryzen 7 9800X3D CPUs burning in the exact same manner. If you’re running a 7800X3D, it’s probably worth checking that you’re on the latest BIOS and keeping an eye on SoC voltage.