no POST + weird debug LEDs

[Donkeyko10]

Standart no POST situation

I've done all steps of the MG2R-Guide except 8,17,18 because I dont have VGA/second PC. Nothing changed on the situation.

Oddities : 

- Every time i start up the PC (with my screwdriver) the CPU und DRAM LED go on for about 10s then the CPU LED goes of and about 2s later the DRAM goes off as well. 

 

- Every time turn off the PC (with my screwdriver) the DRAM light goes on again until the PC shuts down 

 

Specs: 

CPU - AMD Ryzen 7 7700X 4.5 GHz 8-Core Processor

Cooler - ARCTIC Freezer 36

MB - MSI PRO B650-S WIFI ATX AM5 

Memory - G.Skill Flare X5 32 GB (2 x 16 GB) DDR5-6000 CL36

Storage - Kingston NV3 1 TB M.2-2280 PCIe 4.0 X4 NVME Solid State Drive

GPU - Gigabyte GAMING OC Radeon RX 7600 XT 16 GB

 

BIOS : AMI BIOS Version 7E26v1L

 

Other (important) stuff : 

- Motherboard came without M.2 clips for my SSD so i got a bit creative and replaced them with a normal screw and a nut (see picture)

 

- Im new to building PCs (This is my first one) so I might not understand everything and make some stupid mistakes. Please be forgiving and patient 

 

 

[Sawa Takahashi]

2 hours ago, Donkeyko10 said:

Oddities : 

- Every time i start up the PC (with my screwdriver) the CPU und DRAM LED go on for about 10s then the CPU LED goes of and about 2s later the DRAM goes off as well. 

 

- Every time turn off the PC (with my screwdriver) the DRAM light goes on again until the PC shuts down 

These do not mean much. I got a different motherboard and mine does the CPU, DRAM, VGA and BOOT every time it posts. And when shutting down, they all flash a few times until power drains away. The debug lights are only meaningful when they stay lit.

2 hours ago, Donkeyko10 said:

- Motherboard came without M.2 clips for my SSD so i got a bit creative and replaced them with a normal screw and a nut (see picture)

As long as the screw does not make contact with more conductive surfaces than a regular screw, this isn't a problem. You can even use fishline or duct tape if you want to be creative.

 

You tried booting your computer with the GPU removed ? Your CPU includes an iGPU and you can plug your monitor in the motherboard ports. That way you can rule out the GPU as being faulty or in working condition.

If nothing works, you can try to boot with minimal components; motherboard, CPU, RAM and power supply. Remove everything else (including the SSD). This should allow you to boot into the BIOS screen. Then shutdown, add a component and boot again, until you added all components or that you find the problematic one.

Good luck !

[Donkeyko10]

38 minutes ago, Sawa Takahashi said:

If nothing works, you can try to boot with minimal components; motherboard, CPU, RAM and power supply. Remove everything else (including the SSD). This should allow you to boot into the BIOS screen. Then shutdown, add a component and boot again, until you added all components or that you find the problematic one.

I've tried this already. It doesnt seem to change anything. Motherboard and CPU were already used and resent components  when I bought them on amazon. Could they be broken ? 

[Sawa Takahashi]

4 hours ago, Donkeyko10 said:

I've tried this already. It doesnt seem to change anything. Motherboard and CPU were already used and resent components  when I bought them on amazon. Could they be broken ? 

It is a possibility. Did you check if the BIOS version of the motherboard supports your CPU ? I doubt it is an issue but it doesn't hurt to check.

You tried clearing the CMOS memory ?

The next step is to test your components one by one in another computer.

[Donkeyko10]

8 hours ago, Sawa Takahashi said:

It is a possibility. Did you check if the BIOS version of the motherboard supports your CPU ? I doubt it is an issue but it doesn't hurt to check.

You tried clearing the CMOS memory ?

The next step is to test your components one by one in another computer.

BIOS is the newest full version for the motherboard. As much as I know Ryzen 7 7000 series should still be supportet 

 

I've already tried clearing CMOS and even replaced the CMOS-Batterie with a new one.

I sadly dont have a second PC to test the parts on, if nothing works I might seek help in a tech store 

 

 

[Sawa Takahashi]

12 hours ago, Donkeyko10 said:

BIOS is the newest full version for the motherboard. As much as I know Ryzen 7 7000 series should still be supportet 

Yes. Recent boards do not drop support for older chips when upgrading. They got enough memory to store the data for all supported CPUs.

Another poster pointed out that you may be interrupting Memory training when booting your computer. How long do you wait when you boot your computer ? This may take a few minutes for that generation of motherboards.

12 hours ago, Donkeyko10 said:

I sadly dont have a second PC to test the parts on, if nothing works I might seek help in a tech store 

That is a way to get a machine to test your components. Ask for a quote, it should not be too expensive for a repair shop. If you can return your motherboard and/or CPU, I'd check until when for it may the best option if they turn out defective.

[Donkeyko10]

On 9/1/2025 at 4:16 PM, Donkeyko10 said:

Oddities : 

- Every time i start up the PC (with my screwdriver) the CPU und DRAM LED go on for about 10s then the CPU LED goes of and about 2s later the DRAM goes off as well. 

 

- Every time turn off the PC (with my screwdriver) the DRAM light goes on again until the PC shuts down 

A friend of mine pointet out , that the lights could signal that the POST gets interruptet while/after doing the DRAM-Check. Could it just be a very very long memory traninig ?  

[Sawa Takahashi]

47 minutes ago, Donkeyko10 said:

A friend of mine pointet out , that the lights could signal that the POST gets interruptet while/after doing the DRAM-Check. Could it just be a very very long memory traninig ?  

Also a possibility. I think the OP didn't mention how long he waited before declaring the POST was unsuccessful. Since he is new to computer assembling, this is certainly worth asking.

[Donkeyko10]

2 hours ago, Sawa Takahashi said:

Also a possibility. I think the OP didn't mention how long he waited before declaring the POST was unsuccessful. Since he is new to computer assembling, this is certainly worth asking.

I left the PC running for about 3h now. I don't think a memory update takes that long.

 

[Smalahovet]

11 minutes ago, Donkeyko10 said:

I left the PC running for about 3h now. I don't think a memory update takes that long.

 

At this point id tell you to check the CPU socket for any damage/bent pins. One of the only things that make sense if you PSU is ok

[FilipposTechGR]

On 9/1/2025 at 5:16 PM, Donkeyko10 said:

Standart no POST situation

I've done all steps of the MG2R-Guide except 8,17,18 because I dont have VGA/second PC. Nothing changed on the situation.

Oddities : 

- Every time i start up the PC (with my screwdriver) the CPU und DRAM LED go on for about 10s then the CPU LED goes of and about 2s later the DRAM goes off as well. 

 

- Every time turn off the PC (with my screwdriver) the DRAM light goes on again until the PC shuts down 

 

Specs: 

CPU - AMD Ryzen 7 7700X 4.5 GHz 8-Core Processor

Cooler - ARCTIC Freezer 36

MB - MSI PRO B650-S WIFI ATX AM5 

Memory - G.Skill Flare X5 32 GB (2 x 16 GB) DDR5-6000 CL36

Storage - Kingston NV3 1 TB M.2-2280 PCIe 4.0 X4 NVME Solid State Drive

GPU - Gigabyte GAMING OC Radeon RX 7600 XT 16 GB

 

BIOS : AMI BIOS Version 7E26v1L

 

Other (important) stuff : 

- Motherboard came without M.2 clips for my SSD so i got a bit creative and replaced them with a normal screw and a nut (see picture)

 

- Im new to building PCs (This is my first one) so I might not understand everything and make some stupid mistakes. Please be forgiving and patient 

 

 

 

 

It looks like you’ve done a good job putting things together for a first build . A couple of things you might want to check:

That screw  nut combo for the M.2 won’t cause issues electrically, but make sure it’s not overtightened and touching any traces around it. Normally the board should come with a proper standoff  screw for NVMe, maybe double check the motherboard box or accessories bag.

For the no POST with CPU/DRAM LEDs: try booting with just one stick of RAM in the slot recommended in the manual, then swap if it doesn’t work. Sometimes DDR5 training can take a while on first boot.

Also, make sure your BIOS is the latest version  AM5 boards had a lot of updates for memory compatibility.

 

[Donkeyko10]

2 hours ago, FilipposTechGR said:

For the no POST with CPU/DRAM LEDs: try booting with just one stick of RAM in the slot recommended in the manual, then swap if it doesn’t work. Sometimes DDR5 training can take a while on first boot.

Also, make sure your BIOS is the latest version  AM5 boards had a lot of updates for memory compatibility.

I've already done all those steps. The MG2R-Guide does a great job at listing possible issues. If you want to check, what I have/haven't already done: It's all the Steps in the Guide except 8,17 and 18.

 

2 hours ago, FilipposTechGR said:

 Normally the board should come with a proper standoff  screw for NVMe, maybe double check the motherboard box or accessories bag.

The board was a resent produkt on amazon. I think the screws got lost by the first owner and amazon didn't put new ones into tha package. But that doesnt really matter, since the alternative schould also be working fine.

[FilipposTechGR]

6 hours ago, Donkeyko10 said:

I've already done all those steps. The MG2R-Guide does a great job at listing possible issues. If you want to check, what I have/haven't already done: It's all the Steps in the Guide except 8,17 and 18.

 

The board was a resent produkt on amazon. I think the screws got lost by the first owner and amazon didn't put new ones into tha package. But that doesnt really matter, since the alternative schould also be working fine.

Yeah, as long as the replacement screw is the right size thread and holds the NVMe down firmly without stressing the PCB, it should be perfectly fine. A lot of boards just use a standard M2×3 or M2×2.5 screw, so if you’ve got one from another motherboard or expansion card, that will work too.

[Sawa Takahashi]

18 hours ago, Donkeyko10 said:

I left the PC running for about 3h now. I don't think a memory update takes that long.

Memory training is certainly not taking that long.

There is certainly something defecting among the CPU, motherboard, PSU or RAM since these are the only components installed and the computer still won't boot. You can make sure one last time that the CPU socket isn't damaged and the CPU correctly seated, the RAM in the right slots and reseat it.

Good luck !