Question No Fans, Lights, or Power

[fnlfntsy1]

Last night I was in the middle of my build and I put in a Ryzen 7 3700X to update my bios, no issues. After, i put in a Ryzen 9 3950X and it posted, no issues. But after I switched out my GTX 1080 for a RTX 3060, nothing. No power at all seeming to be reaching my motherboard, other than some small blinking lights on the bottom, whether I have a gpu plugged in or not. Nowhere in the manual does it explain what these lights mean, all I know is that they’re on the bottom left underside of the board.

I’ve tried everything I could find, CLR_CMOS, taking out the CMOS battery, jumping the power button pins, switching sets of ram and switching slots, switching CPU’s, taking the mobo out the case to prevent any shorting, still nothing. I tried different outlets, I did the paperclip test and my PSU turns on, there just isn’t any power reaching my motherboard. I have my CPU fan plugged in and I’ve reseated the power cable, 24pin, 6+2pin, and 4+4pin connectors in the PSU and on the mobo and still nothing. I’ve used a multimeter to check two power supplies’ voltage and they worked properly.

I’ve tried removing everything from the board except for the power cables as well, still nothing but the small blinking lights under the board.

The mobo has been working for months and was working last night, I have no clue what to do. The only sign of life on the motherboard are some blinking red lights on the back panel. These lights are located on the bottom left side of the motherboard.

https://imgur.com/a/4O0C51K

View: https://imgur.com/a/4O0C51K
(lights under the board somewhere around the AMP-UP sign on the front of the board)

Specs:
Ryzen 7 3700X / Ryzen 9 3950X
Gigabyte B550 Aorus Elite AX V2
Corsair Vengeance Pro 32GB 3200mhz
Samsung 960Pro 512GB NVME
EVGA GTX 1080 / Zotac RTX 3060
Thermaltake Toughpower GFA3 850W Gold

 

[Lutfij]

Welcome to the forums, newcomer!

Thermaltake Toughpower GFA3 850W Gold
How old is the PSU and what did it power throughout it's tenure?

I was in the middle of my build and I put in a Ryzen 7 3700X to update my bios, no issues.
Did you clear the CMOS after verifying you'd successfully flashed the BIOS to the latest version? Speaking of versions, what version did you flash to? You're sure you matched the PCB revision for your motherboard prior to downloading and flashing the BIOS? What BIOS version were you on prior to the flash?

In order to clear the CMOS, you're advised to disconnect from the wall and display, then remove the CMOS battery, press and hold down the power button for 30secs to drain any residual power then replace the battery after 30mins.

all I know is that they’re on the bottom left underside of the board.
You might want to include images of what you're seeing, in case you're confused. Host your images on a site like Imgur and then pass on a link for us to see.

I’ve tried removing everything from the board except for the power cables as well, still nothing but the small blinking lights under the board.
You mean where the PCB trace is isolated for the audio;

? That will light up regardless of what you do on the board, to signify you're getting standby power.

 

[fnlfntsy1]

Welcome to the forums, newcomer!

Thermaltake Toughpower GFA3 850W Gold
How old is the PSU and what did it power throughout it's tenure?

I was in the middle of my build and I put in a Ryzen 7 3700X to update my bios, no issues.
Did you clear the CMOS after verifying you'd successfully flashed the BIOS to the latest version? Speaking of versions, what version did you flash to? You're sure you matched the PCB revision for your motherboard prior to downloading and flashing the BIOS? What BIOS version were you on prior to the flash?

In order to clear the CMOS, you're advised to disconnect from the wall and display, then remove the CMOS battery, press and hold down the power button for 30secs to drain any residual power then replace the battery after 30mins.

all I know is that they’re on the bottom left underside of the board.
You might want to include images of what you're seeing, in case you're confused. Host your images on a site like Imgur and then pass on a link for us to see.

I’ve tried removing everything from the board except for the power cables as well, still nothing but the small blinking lights under the board.
You mean where the PCB trace is isolated for the audio;

? That will light up regardless of what you do on the board, to signify you're getting standby power.

Thanks for your reply,

The PSU is brand new, I got it front Best Buy 3 days ago and this is the first system I’ve used it on.

I believe I was on the first version of the BIOS since it came from the factory, I updated it to FGd, as it was the most recent one, and I cleared the CMOS after.

I added the imgur link to my original post, sorry for not including it before.

These blinking lights in the imgur are the only lights on the board that turn on when the 24pin and 4+4pin are plugged in; the RGB on the front of the board doesn’t turn on at all now sadly .