Question Debug lights all turned on

[1Torch]

I have a B550MX/E Pro Biostar motherboard and it has an issue where when we boot up, all debug lights consistently turned on.

This happened during the installation of a cpu fan where we tested it and was running fine until we were wrapping up the pc and turn it on one last time, and the debug light issue happened.

What causes all the lights (dram, cpu, vga, boot) to turn on whenever we try to turn on the PC? Is the motherboard damaged already?

 

[Lutfij]

Welcome to the forums, newcomer!

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model.

What causes all the lights (dram, cpu, vga, boot) to turn on whenever we try to turn on the PC?
A multitude of reasons, faulty CPU, bent CPU pin, unsupported processor, faulty motherboard, corrupt BIOS among other things.

This happened during the installation of a cpu fan where we tested it and was running fine until we were wrapping up the pc and turn it on one last time, and the debug light issue happened.
What did you do when testing the CPU fan? Did you connect or disconnect anything while the system was powered up?

 

[1Torch]

CPU: Ryzen 5 5600X
CPU Cooler: Gamdias Boreas E1 410 Lite
Motherboard: Biostar B550MX/E Pro ver. 6.0
RAM: Hrapol 2x16 2666 mhz
SSD/HDD: Generic SSD 3x
GPU: Nvidia Geforce RTX 4060 Ti
PSU: Corsair CX650, around 8 months
Chassis: Generic Chassis
OS: Windows 11
Monitor: Gamdias HD24IFW

I apologize for not posting the specs.

 

[1Torch]

Welcome to the forums, newcomer!

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model.

What causes all the lights (dram, cpu, vga, boot) to turn on whenever we try to turn on the PC?
A multitude of reasons, faulty CPU, bent CPU pin, unsupported processor, faulty motherboard, corrupt BIOS among other things.

This happened during the installation of a cpu fan where we tested it and was running fine until we were wrapping up the pc and turn it on one last time, and the debug light issue happened.
What did you do when testing the CPU fan? Did you connect or disconnect anything while the system was

 

[1Torch]

The cpu fan was working as intended and we were able to run some games like cyberpunk 2077. Now after the repairman returns all the parts like side panels and rearrange some wires from ssd, like literally ready for return, we try to run it one more time and then the problem shows up. All the debug lights are turned on, which is unusual as what i know, the debug lights will flicker on where the problem lies until it stops from a light or two. This time, as soon as we turn on the system unit, the mother board debug lights immediately turn on.

 

[1Torch]

It was our first time having all the debug lights turned on, so were stumped on what to do. We already refit all the parts, changed the cpu from 5600x to a 2600ge just to check if its cpu causing the problem, but all of them are still getting the same debug lights all turned on. We just want to know what they mean.

 

[1Torch]

Update:

We removed the CMOS Battery and let it stay for an hour or 2. It is now lighting on DRAM. Well handle here for now. Thanks again.

 

[Otto Levin]

1Torch,
you've already made some progress by resetting the CMOS, which is good. Since the debug light is now focusing on the DRAM, it suggests a possible memory-related issue. Here are a few steps you can take to further troubleshoot:
Remove both RAM sticks and reinsert them, making sure they're properly seated. Sometimes, even a slight misalignment can cause issues.
Try booting with only one stick of RAM at a time to see if one of them is faulty. Alternate between the two sticks and different slots.
Ensure that your motherboard has the latest BIOS version. Sometimes, memory compatibility can improve with updates.
While working on the build, touch a grounded surface to discharge any static electricity.
Even though your PSU is fairly new, it's worth double-checking the connections and ensuring it's providing stable power, especially since the issue happened after rearranging wires.
Have fun 🤟