Hello guys. My video card sometimes frezze out.
I've got black screen some time later while im playing a video game, and this led turns on when it freeze out. What is this?

Maybe it means the gpu is in a frozen state? When the black screen occurs do the fans on your gpu go to 100%?

if the leds are similar to the classified
Those 5 LED's are voltage indicator lights that can help you diagnose voltage problems with your video card. With the gpu fans facing towards you and the power connectors facing up, the LEDs are, from left to right:

GPU - This indicates if voltage to the video card's GPU is good
MEM - This indicates if voltage to the video card's memory is good
PLL - This indicates if the voltage for auxillary components such as fans, LEDs, etc. is good
3.3V - This indicates if the voltage supplied from the motherboard via PCIe slot is good
12V - This indicates if the voltage from the 12v input from the power supply is good

tattude69
if the leds are similar to the classified
Those 5 LED's are voltage indicator lights that can help you diagnose voltage problems with your video card. With the gpu fans facing towards you and the power connectors facing up, the LEDs are, from left to right:

GPU - This indicates if voltage to the video card's GPU is good
MEM - This indicates if voltage to the video card's memory is good
PLL - This indicates if the voltage for auxillary components such as fans, LEDs, etc. is good
3.3V - This indicates if the voltage supplied from the motherboard via PCIe slot is good
12V - This indicates if the voltage from the 12v input from the power supply is good

Those leds are in the front of the card by the power connectors...
 

 
The one the op is talking about isn't one of those 5.

Could it be the BIOS LED ...
 


 
 

No it isn't the vbios led.

Here is the vbios led in green...
 

 
Note: This picture also shows a led lit in the same area as the op, so it's most likely normal.

D3905 & D3909 ?  If those are in fact LEDs ...
 
I enlarged the OP photo & counted the PCB edge ridges to find this location
 

 
 

Yes exactly.

Yes one of these leds is lightning up when my gpu is frozen. Also the fans turned to 100%.
And i dont know what does it mean.