Question Motherboard not working after switching case

[nyxx62]

Build:

CPU- Ryzen 3700x
Motherboard- x570 Phantom Gaming 4
RAM- Corsair Vengeance LPX 3200 16gb
Graphics card- MSI RX 580
PSU- RM650x


Hi All,

Recently I moved my build from an older case into a Fractal Design Define R6. I moved everything over into my new case and when turning it on; no display would show+ peripherals would light up for a split-second and then go off. The motherboard would show both CPU and Ram red lights and then of course without the GPU being present it would show a GPU light also, due to the 3700x not having integrated graphics.

I breadboarded the system and also built it again in my old case with a different GPU and PSU and still the same thing would occur (display would show+ peripherals would light up for a split-second and then go off).

I am quite unsure though if it is the CPU or the motherboard. However, I am leaning towards the motherboard being faulty due to it showing a ram error when I know for certain the ram works perfectly as I am using it now in my back up system. The CPU also worked perfectly before I switched cases. I am using the PSU+Ram+GPU in another system so I know they work perfectly.

I am thinking I damaged it whilst moving it. I am okay with replacing either/both parts, but I would just like to know for certain so I don't have to mess around with Amazon and returns in case one of the parts is still fully functional.

Any input is greatly appreciated.

Cheers for the help!

 

[rocktalkrock]

Have you double-checked if the RAM sticks have come loose? Push down on the RAM sticks at both ends.

 

[glennhl]

Make sure you don't have an extra standoff sticking up under the board where there is not a hole.

 

[nyxx62]

Make sure you don't have an extra standoff sticking up under the board where there is not a hole.

I don't think that is the problem due to using 2 different cases and having the same problem in both cases.