Tuf gaming 650 plus won't turn on

[Danidasanic]

Hey guys. My tuf gaming b650 plus board sometimes is showing apparently a flash code and won't even turn on , this seems kinda random as yesterday I wasn't able to turn on the pc during afternoon but it turned on later like nothing ever happened. I didn't changed the pc or system recently, the psu and the power button is fine . Anyone knows the meaning of the flashback light code ?

https://youtu.be/8IvEGIKOY7E

Same result without ram , vga , a second psu or shutting directly the power line . The only way I was able to turn the pc on was by switching it off the psu , waited a few moments, then turning the psu switch and pushing the power button almost at the same time 

[Jiaszzz_ROG · Accepted solution]

Hello @Danidasanic 

Thank you for reaching out to us.
Based on the description, it seems that the flashback LED indicator randomly flashes, and the system is unable to boot.
In addition to verifying that all hardware components on the motherboard are properly connected and free of issues (including any signs of rust or loosened connections), we recommend updating the BIOS to the latest version 3042, released on October 22, 2024, and clearing CMOS.
If possible, please try cross-testing with a different PSU or power cable.

Thank you.

[JozkoMrkvicka]

Hey .... any news ? I have same exatly MB this problem start about month ago my motherboard is 1,5year old my psu about 12y seasonic S12II-520Bronze ... my cpu is AMD R5 r7600 maybe some update windows crushed MD and its not compatibile 😕 ... some ideas ? .....  i try bios updates but no change i hope ASUS solve this this sooon or reclaim of MD 3y warranty hm .. contact me if you are interested 😉

[Danidasanic]

exactly the same issue ? I think it was related to condensation ? hard to know for sure but it fixed it self since then

[JozkoMrkvicka]

yes same i do update but nothink .. you doin bios update ?... related to condensation with water ? you kidding... you saying it fix itself 😛 i have same problem from 25.10.24 and every day same ... i turn off pc on 5s and i cant turn it normally only with PSU button and power button in same time like 3s ... when keyboard blick ... its like i need restart MD with PSU for 15s every time to start PC ... which CPU do you have ? you write you try another PSU and it was same ... i try tomorrow all cables check and change power cable ... how long do you have this problem ? 

[Danidasanic]

I had the problem for a few days only . 

[JozkoMrkvicka]

i think its defective MD even after few bios updates and downgrades i cant turn off Bios Flashback on back its still blickin ....  well done ASUS cup of tea on that MOBO maybe helps some condenzations

[JozkoMrkvicka]

do you update your bios latest version 3042, released on October 22, 2024 with GPT/UEFI usb ?

[Danidasanic]

No , like I said , it fixed by it self ...the moisture can do strange things 

[JozkoMrkvicka]

i have only dust in room ... tonight i play get frezze and stuck entire system restart from nowhere its bricked toast i need refund .... every component on 2years trash age