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supsuop
Journeyman III

new build with B550m-itx/ac "no signal"

short story:
I have just build a new PC, sadly when I boot it doesn't show any signal to my TV. Fans are working.

What I have tried:
1. Resetting CMOS, unfortunately I don't have a jumper so I did it with a screwdriver. I saw for a second the boot logo of ASROCK but I couldn't reproduce it again.
2. individually tested each RAM-stick, oddly each RAM reacts differently.
- 2a first one seems to push the system to a reboot loop with "no signal"
- 2b second one has no reboot loop but still no signal

Motherboard
- ASRock B550m-ITX/ac
RAM
- Crucial Ballistix 2x8GB 3600 CL16
CPU
- Ryzen 5 3600
DISK
- SN550 1TB Western Digital Blue
GPU
- Asus GeForce GTX 1650
PSU
- Corsair SF 750

As far as I can see, it seems like a problem with the CPU, MB, RAM.
I am going to buy a new RAM to test it.


Has anyone a clue what it could be?

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