Non Booting Asus Strix B550-E

swarfega said:

I shut down then powered on again then pressed the flash bios and its blinking! Its a very dim light,

Weird. It says do not power system.

I couldn't find your exact set of RAM on the QVL, but there WAS 3600Mhz Corsair Dominators in like 2x 8GB kits that was on there.
So the RAM is compatible.

I would think that the 550 wouldnt have much issue with RAM generally. I'm now going to gut the case and take all the parts out to test outside the case.

swarfega said:

I would think that the 550 wouldnt have much issue with RAM generally. I'm now going to gut the case and take all the parts out to test outside the case.

On the 2 builds before this one, I had Dominators. They seemed to be compatible with everything.

Well, I think it's bed time for me. Good luck with your build.

I have managed to update the Bios successfully but I wasn't able to start the motherboard using the screwdriver technique. I will put it back in the case.

So you now have the most current BIOS version installed, and it is compatible with the CPU?

For this kind of diagnostic testing it helps to have a motherboard speaker attached to the two pins on the header. Do you have one?

For problem boards the classic diagnostic is to strip the motherboard down to just the processor (motherboard in or out of the case), make all your power connections, and then power on.
You should get a boot error code that means: no memory detected. This could be a beep code if you have a speaker, or a LED cod on the board. This is good, it means the CPU is working.
Power Off.
Then you add 1 stick of RAM it the first socket (that socket is designated in your motherboard manual). Test again. You should get an error code that there is no graphics (unless they are on the CPU). Again, good. RAM is good.

You continue to power off and add the components one at a time until you get to the problem component.
Now you know where to focus.

Also an oldie, common with Intel processors, not sure about AMD.

After you have replaced a processor it is a good idea to perform a CPU Parameter Recall procedure.
Enhanced procedure:
Power off the PC, turn off the power supply (or unplug it), remove the motherboard battery, use the screwdriver method to turn the motherboard on for about 3 seconds, replace the battery, connect the power supply, and power on.

For good measure you could perform a CLRTC (Clear RTC) on the board too.

This resets everything (retains the BIOS you installed). Can solve problems.

Almost forgot to add. Reset the BIOS to defaults via the CMOS battery.
I've seen hundreds of motherboards that have failed to boot, because a weird BIOS setting was left in there by the manufacturer's testing dept.

After a few hours of pulling out hair, I am happy to report that it is finally up and working. What did it was removing the CPU and updating the BIOS. I read that I had to use an old USB 2 stick formatted to FAT32.

Thank you Ghot, and TV2 for your help.

swarfega said:

After a few hours of pulling out hair, I am happy to report that it is finally up and working. What did it was removing the CPU and updating the BIOS. I read that I had to use an old USB 2 stick formatted to FAT32.

Thank you Ghot, and TV2 for your help.

WoOt!! Great job. Glad you got it going.

Congrats!
I think this stuff actually makes building PCs fun.
OK, interesting.
Sometimes when I put everything together and it all just works I'm like.... Awwww.