B460m Pro4 issue

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   Hi everyone, I need help with the motherboard mentioned above. 
It worked ok yesterday. I removed it from the case and installed it in another. Now it will not power on. All LED lights are on, so there is power, but it won't start. I have removed it from the case and connected the PSU with only one RAM stick. CPU (10100f) remains cold. I can't get my head around it. I think I've tried and checked everything but maybe someone had a similar problem and managed to fix it. 
This is what I did so far:
1. I've checked the CPU socket for bent pins,
2. Checked different ram stick 
3. Checked the CMOS battery/ left it without battery for a few hours
4. I've checked different PSU  

Is there anything else? What am I missing?? It worked perfectly fine a few hours ago.
I haven't run it with a different CPU, but if that were to be a faulty CPU, the motherboard would still power on, wouldn't it? It wouldn't post anything obviously. 

Has anyone got ideas?? thanks 

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pavelstapor Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Feb 2024 Status: Offline Points: 20	Post Options Post Reply Quote pavelstapor Report Post Thanks(0) Quote Reply Topic: B460m Pro4 issue Posted: 04 Feb 2024 at 8:01pm
	Hi everyone, I need help with the motherboard mentioned above. It worked ok yesterday. I removed it from the case and installed it in another. Now it will not power on. All LED lights are on, so there is power, but it won't start. I have removed it from the case and connected the PSU with only one RAM stick. CPU (10100f) remains cold. I can't get my head around it. I think I've tried and checked everything but maybe someone had a similar problem and managed to fix it. This is what I did so far: 1. I've checked the CPU socket for bent pins, 2. Checked different ram stick 3. Checked the CMOS battery/ left it without battery for a few hours 4. I've checked different PSU Is there anything else? What am I missing?? It worked perfectly fine a few hours ago. I haven't run it with a different CPU, but if that were to be a faulty CPU, the motherboard would still power on, wouldn't it? It wouldn't post anything obviously. Has anyone got ideas?? thanks