[SOLVED] Bad motherboard or is it another component?

[D7636]

I have a problem with my pc and it has been several months with this and it is that sometimes when I try to turn on my pc it won't POST and has an orange light that according to the manual is DRAM_LED but this only happens when I restart, turn it off and immediately turn it on or rarely with a blackout and "almost" always works again when I don't plug it in for almost 12 hours.

Some of the most important things I have tried:
1-Buy and try another PSU
2-Buy another RAM stick
3-Test each stick of RAM in the 4 slots (new and old)
*When I bought the RAM it kept giving the same error but when I got it to turn on they even ran in Dual Channel Mode but now when I try to test the new ram stick it does not pass the orange led or sometimes a red led appears and now it only turns on with the old RAM.

My PC:
Processor: i5-7400
Motherboard: ROG STRIX B250F GAMING
RAM: Ripjaws V 2800MHz(Old) / XLR8 DDR4 3200MHz(New)
Graphic Card: GTX 1080 Mini Zotac
HDD: Seagate Barracuda 2 TB
PSU: Cougar VTE 600W 80+ Bronze

 

[lvt]

Did you mix the 4 RAMsticks together?

 

[D7636]

Did you mix the 4 RAMsticks together?

I only have 2 sticks of ram but yeah I mixed them up and tried each of the slots but normally now it only works with the old one.

 

[alexbirdie]

https://rog.asus.com/motherboards/rog-strix/rog-strix-b250f-gaming-model/spec

Did you try your ram with xmp off?

Seems that faster ram than 2400 is not supported officially.
That means, might run, but not must run.

"4 x DIMM, Max. 64GB, DDR4 2400/2133 MHz Non-ECC, Un-buffered Memory"

Another try would be to set ram-voltage manually to 1.35V and soc-voltage to 1.1.

And: Did you connect the additional 8-pin-cpu-power, too?

 

[D7636]

https://rog.asus.com/motherboards/rog-strix/rog-strix-b250f-gaming-model/spec

Did you try your ram with xmp off?

Seems that faster ram than 2400 is not supported officially.
That means, might run, but not must run.

"4 x DIMM, Max. 64GB, DDR4 2400/2133 MHz Non-ECC, Un-buffered Memory"

Another try would be to set ram-voltage manually to 1.35V and soc-voltage to 1.1.

And: Did you connect the additional 8-pin-cpu-power, too?

Normally I don't use the xmp since I reset the CMOS to see if it turns on, changed the voltage and still nothing and the 8-pin CPU cable is always connected.