Question GIGABYTE B450M DS3H Does not power on at all, ZERO signs of life, no fans spinning or anything, NOTHING

[Jusion11]

My Other Specs:
GPU: Zotac Gaming 3060Ti OC
CPU: Ryzen 7 5800X
RAM: 8GB Giel EVO Potenza
Power Supply: Apevia Prestige 800w Gold
AIO Cooler: Corsair iCUE H150i Capellix XT
SSD: WD BLACK SN770 with an Artic M2 Pro Cooler
Case: Phanteks P400 Eclipse

My motherboard suddenly stopped and didn't power on when i was installing a new fan and connecting to to the Corsair Command Block For the Fans and CPU cooler, i unplugged the cpu cooler On the command block while the pc was running accidently and the pc shut down, when i attempted to power it back on nothing was powering on at all, not a single component running at all. i do recall a burn strange smell after the pc powered off though, but i hope it wasn't all of my expensive components worth two paychecks calling it quits.

So i did a lot of trouble shooting.

I checked it it was the PSU, i plugged it into my also broken MSI B350m Bazooka Motherboard, it powered on just fine, still giving the typical EZ Debug CPU error light, so it's not the Apevia power supply failing on me.
I plugged in a different Power supply, An EVGA Brown 450W power supply into the Gigabyte Motherboard, and nothing, not a fan spin, not a light.

I checked if the Cpu was the problem, i remove the AIO Cooler and swapped the Ryzen 7 5800X with a Ryzen 5 1400, then reinstalled the aio, tried out the two differnt power supplies for both, and it still did absolutely nothing when i tried to used the front panel power and also the screwdriver shorting technique, no life.

Then i tried other various techniques
i resetted the CMOS Battery, nothing,
I put RAM into different slots, i remove the Graphics card, i swapped CMOS Batteries, i unplug the SSD.
Not a single sign of life.

So if there is anybody here who knows hardware more than me, give me the answer, im tired of troubleshooting this complete waste of money and time.

 

[Lutfij]

Welcome to the forums, newcomer!

Power Supply: Apevia Prestige 800w Gold
How old is the PSU and what did it power prior to the RTX3060Ti?

Correction;
My motherboard suddenly stopped and didn't power on when i was installing a new fan and connecting to to the Corsair Command Block For the Fans and CPU cooler, i unplugged the cpu cooler On the command block while the pc was running accidently and the pc shut down, when i attempted to power it back on nothing was powering on at all, not a single component running at all. i do recall a burn strange smell after the pc powered off though, but i hope it wasn't all of my expensive components worth two paychecks calling it quits.
You fried your motherboard. It's mentioned in your manual and other build guides to power down before you disconnect or reconnect anything internally in your build. The only things you can disconnect and reconnect without worry are USB driven peripherals(not USB drives) and displays, without powering down the system.

 

[Jusion11]

Welcome to the forums, newcomer!

Power Supply: Apevia Prestige 800w Gold
How old is the PSU and what did it power prior to the RTX3060Ti?

Correction;
My motherboard suddenly stopped and didn't power on when i was installing a new fan and connecting to to the Corsair Command Block For the Fans and CPU cooler, i unplugged the cpu cooler On the command block while the pc was running accidently and the pc shut down, when i attempted to power it back on nothing was powering on at all, not a single component running at all. i do recall a burn strange smell after the pc powered off though, but i hope it wasn't all of my expensive components worth two paychecks calling it quits.
you fried your motherboard.

The Apevia PSU is only 1 week old, it powered an rx 580 GPU and quickly got replaced by the Zotac one on my MSI B350M Bazooka with a ryzen 5 1400 CPU.

 

[beyondlogic]

My Other Specs:
GPU: Zotac Gaming 3060Ti OC
CPU: Ryzen 7 5800X
RAM: 8GB Giel EVO Potenza
Power Supply: Apevia Prestige 800w Gold
AIO Cooler: Corsair iCUE H150i Capellix XT
SSD: WD BLACK SN770 with an Artic M2 Pro Cooler
Case: Phanteks P400 Eclipse

My motherboard suddenly stopped and didn't power on when i was installing a new fan and connecting to to the Corsair Command Block For the Fans and CPU cooler, i unplugged the cpu cooler On the command block while the pc was running accidently and the pc shut down, when i attempted to power it back on nothing was powering on at all, not a single component running at all. i do recall a burn strange smell after the pc powered off though, but i hope it wasn't all of my expensive components worth two paychecks calling it quits.

So i did a lot of trouble shooting.

I checked it it was the PSU, i plugged it into my also broken MSI B350m Bazooka Motherboard, it powered on just fine, still giving the typical EZ Debug CPU error light, so it's not the Apevia power supply failing on me.
I plugged in a different Power supply, An EVGA Brown 450W power supply into the Gigabyte Motherboard, and nothing, not a fan spin, not a light.

I checked if the Cpu was the problem, i remove the AIO Cooler and swapped the Ryzen 7 5800X with a Ryzen 5 1400, then reinstalled the aio, tried out the two differnt power supplies for both, and it still did absolutely nothing when i tried to used the front panel power and also the screwdriver shorting technique, no life.

Then i tried other various techniques
i resetted the CMOS Battery, nothing,
I put RAM into different slots, i remove the Graphics card, i swapped CMOS Batteries, i unplug the SSD.
Not a single sign of life.

So if there is anybody here who knows hardware more than me, give me the answer, im tired of troubleshooting this complete waste of money and time.

sounds like you may have straight up killed the board what fan did you plug in did you check it was compatible with the corsair command block.

if your lucky its a dead command block which i would remove the wire connecting it to board and just have the aio plugged into the board see if it posts. if a defective part is attached to the board it wont post.

your best bet is to try the above then breadboard it on a carboard box or wood table outside of the case.