Monitors only show black screen when turning on pc

[Rockwood]

Hello,

today I tried to turn on my PC, but all 3 of my monitors remained black and did not show anything.

My System:

AMD Ryzen 5 3600 WRAITH 3600 AM4
Asus ROG STRIX B450-F GAMING B450
D416GB 3200-16-18-18 Ripjaws V K2 GSK
SSD 500GB 2.3/3.4G 970 EVO PCIe M.2 SAM
Tt TR2 S 700W ATX23
EVGA 8GB D6 RTX 3060 Ti FTW3 ULTRA
Windows 10 Pro

Monitors:
AOC 27G2U 27
Acer b223wl
Asus VS247HR

What I tried so far:
Plug in every monitor individually
tried hdmi and displayports
removed the graphic card and tried it with the on board graphic
tried each ram individually

none of these things worked.

Something else worth mentioning, the motherboard has 4 LED’s indicating problems and the green one of them stays lit - green meets “boot”.

Does anyone has any idea?

[phillpower2]

Tt TR2 S 700W ATX23
EVGA 8GB D6 RTX 3060 Ti FTW3 ULTRA

No way should that PSU be being used anywhere near a demanding build and especially one that has such a high end GPU like an RTX 3060Ti, 80+ and Bronze efficiency rated PSUs are only intended for use with entry level desktops that only have integrated graphics or the most basic of add on GPU that requires no supplemental power dongle from the PSU, this from proven brands such as Corsair, EVGA and Seasonic.

Your build must have a minimum of a Gold efficiency rated PSU from a proven brand such as Corsair, EVGA or Seasonic. Which power supply do you need?

removed the graphic card and tried it with the on board graphic

The MB may have video ports but they rely on an APU spec processor that has ondie graphics, your CPU is not such a processor which explains why you get no video.

[Rockwood]

does that mean, that the PSU fried my graphic card? In the current situation that would be the worst possible thing to happen -___-

[phillpower2]

Hopefully not, the PSU being weak will hopefully mean that it is purely down to the GPU not getting enough power to be able to function, weak PSUs will often work for a time when they are below the required spec but all the while that the PC is in use the hardware is being deprived of the clean and stable power that it needs and an add on GPU being the most power hungry tends to suffer first and the most, see additional explanation below.

How old is the PSU.

As a PSU puts out various voltages +3.3V, +5V and +12V it may appear that the PSU is working correctly but it is not, any significant drop of any output can prevent the system from booting up, the other scenario is a significant increase in the output which can be worse as it can fry one or more major components such as the MB, CPU, RAM, add on video card etc.

[Rockwood]

it seems I got lucky. I just removed all additional drives and started the pc without mouse, keyboard and just 1 monitor and I got again an image, so the graphic card still works. I’ll get a better PSU now and hope that then everything will be fine again.

thanks for the help, I would have had a hard time locating the problem.

[phillpower2]

While not ideal your update is far better news than it could have been.

EVGA say here 600W or greater for the card, allowing for your other present hardware, some wiggle room for any future upgrades and the price differentiation between appropriate PSUs the Seasonic with a ten year warranty here is what I would recommend.

You are welcome and thanks for letting us know that you no longer required assistance (y)