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AMD Ryzen 9 9900X owner reports CPU failure with package bump while using early 2026 BIOS
VideoCardz.com • • technology
Key Points:
- A Ryzen 9 9900X CPU reportedly failed suddenly on an MSI MAG X870E Tomahawk WiFi motherboard, showing a Code 00 error and red CPU debug LED, with both CPU and motherboard under one year old.
- Upon inspection, a small physical bump was found on the underside of the CPU substrate near the center, while the IHS and thermal paste appeared normal; no manual overclocking was done, but Precision Boost Overdrive (PBO) was enabled.
- The BIOS was updated to an early 2026 version, indicating the issue did not stem from an early AM5 launch BIOS, and the PSU and cooling system were verified to be functioning properly.
- Similar swelling issues have been reported with AMD Ryzen AM5 CPUs before, though no definitive root cause has been identified, and AMD's warranty response has varied in past cases.
- The owner intends to RMA the processor, hoping for a smoother resolution following previous controversies with AMD's handling of related warranty claims.
