https://wccftech.com/asus-confirms-reversed-memory-capacitor-as-the-root-cause-of-rog-maximus-z690-hero-issues-will-offer-replacement-to-all-affected-users/

ASUS has confirmed the root cause of its ROG Maximus Z690 HERO motherboards which encountered several 53 code issues with some even ending up in flames. The Taiwanese manufacturer has announced that the issue occurred due to the incorrect placement of one capacitor for memory and they will be offering a free replacement to all users that have been affected.

Following our report, Bullzoid at Actually Hardcore Overclocking did his own investigation and found out that one of the memory capacitors on the ROG Maximus Z690 HERO motherboard was reversed on all the models that were affected by the 'Error 53' issue. ASUS has now followed up with a statement, confirming that it was true and they will be offering a replacement to all users affected by this issue.