[SOLVED] RTX3090 won't work suddenly

[rootdotexe]

Hi,
I have got a whole new rig with RTX 3090. I played it for some, and the graphic cards work just fine, however - yesterday night both of my two monitors turned themselves off, I turned off the PC using the physical button and went to sleep.
Today, I tried to start my computer and the monitors haven't turned on, I connected the HDMI cable to my Z590 motherboard and I received a picture.

There's some issue with my RTX3090, It most likely does not related to my PSU or connection issues as it did work and it suddenly did not.
I can also see the LED and Side Mirror working, however, the computer can't detect any graphic cards.
Here's my system:

Gigabyte AORUS RTX 3090 XTREME 24GB GDDR6X
Intel Core i7 11700K 3.6Ghz 16MB Chache S1200 + Asus ROG STRIX LC240 RGB AIO 240mm
G.Skill Trident Z NEO RGB 2x16 DRR4 4000MHz
ASUS TUFZ590 Plus WIFI LGA1200 Intel Z590 DDR4

 

[rgd1101]

either the psu or gpu.
what the brand and model of the psu?

 

[rootdotexe]

either the psu or gpu.
what the brand and model of the psu?

Corsair 850W White 80+ Gold RM850x

 

[rootdotexe]

I was suggested to disconnected the GPU from the PSU and then reconnected the GPU to the motherboard, double-checking the connection.

 

[rootdotexe]

GPU fans won’t start.

 

[rootdotexe]

A'right the issue was pretty silly -
A too-long SATA cable went between the central and right fans, thus the GPU saved itself from overheating and refused to start.
The simple solution was a reorganization of the cable to prevent such accidents to happen in the future.

I also reconnected the PSU cables and ensured the connection.

It's working now.