I have a Tomohawk B550 that die suddenly. No BSOD, no weird sign or no POST/boot just a day before it happened. Fans are spinning, BIOS had flashed several times, CMOS cleared, battery removed, etc. CPUs--5600 and 3700X were tested working on 3 other boards--Aorus X570/Auros B550M-Pro-P/TUF X570, so as the PSUs--RM650x/HX650 , as well as the DRAMs, all components are tested working. The only indicator it show was DRAM LED kept lit up, no beep. The same symptom also happen on my 9 years old TUF X99 board but thats another topic, probably due to age.
Today I bring out the board to check...
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