Question Monitor shows no signal after changing thermal paste?

Mar 27, 2024
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Hello, i just build my first pc yesterday, i installed everything and it worked. This are the specs ryzen 5 5600x, nvidia gtx 1070 ti, ddr 4 ram 16gb and 500gb ssd, motherboard asus Prime B450M-A II, and a corsair cx750 psu.

Yesterday i installed windows 10 and played some games but since i used the amd stock cooler with some pre applied thermal paste the CPU temp in bios was 57°C wich was too high.

Fast forward to today i wanteed to change the thermal paste so thats what i did i wiped the thermal paste with special wipes that i got from arctic and applied the new thermal paste and installed the cooler.

When i wanted to start the pc the motherboard leds where fine and all the fans where turning but my monitor wont show any image, it tells me i have no signal.

I thought it was a graphics card error so i used my other card the raddeon rx 5700 xt, still no image then i thought maybe its the hdmi cable so i plugged it on my laptop but then the screen shows so it cant be the hdmi cable, itried plugging in only 1 ram stick of 8gb still nothing.

Then I used the usb flashback because online it was written that maybe its a problem with the bios but nothing changed still no signal.

And now i dont know anymore what i can do does anyone has a solution to this problem would be much appreciated?

Thank you.