[SOLVED] No Signal after switching AMD or Nvidia

[chaos_viper15]

No Signal after switching from AMD (RX 480) to NVIDIA (GTX 1070)

some things that might help to anyone willing to help me with this:
-No NVIDIA drivers installed (still old AMD drivers installed)
-CAPS LOCK on keyboard is working
-I´ve tried diffrent cables (VGA,HDMI,DISPLAYPORT)
-Boot LED sometimes lights up
-Tried different RAM, one by one also
-Can't access bios either.

Systems Specs:
ASUS STRIX 1070 8G
RYZEN 5 2600
AORUS X470 ULTRA GAMING
2x 8GB 2400MHZ PATRIOT VIPER 4
KINGSTON 120GB (ONLY FOR WINDOWS)
My Boot LED sometimes lights up

PLEASE HELP

 

[brispuss]

Re-install the RX480 video card.

Boot the computer.

If computer boots up OK, then uninstall driver for RX480, and then run DDU in Safe Mode to remove all traces of the video driver. Reboot as required.
Shut down computer and install the GTX1070 card and boot up computer and install Nvidia video drivers.

If computer doesn't boot up, make sure video card, memory and CPU are all seated properly. The CPU may have been accidentally knocked aside a bit while changing video cards. And make sure the video card auxiliary power connector (6 or 8 pin) is connected properly also.

 

[chaos_viper15]

I tried but still no display now with AMD card...but how?! this is what I can't into get bios splash scrren either. Did i brick my motherboard buy the new card with amd drivers?
Fan spins, gpu light up and motherboard and cpu cooler. What could be wrong?
Been dealing with this for 4 days.

 

[brispuss]

Did you check that all components were seated properly?

 

[chaos_viper15]

Yes and they are snug in their respected spots. I'd show you a photo but this site doesn't like imgur I guess.
I don't what it could be I ran out of ideas.

 

[brispuss]

If it is fairly certain that components are seated properly (to be absolutely certain; don't just look at the components, suggest removing them and then re-inserting them), then -

If the computer still doesn't boot, then try ONE memory module at a time.

If the computer boots and runs, then one of the modules may be faulty.

If the computer still doesn't boot, then time to test the PSU.

Ideally, try another known working PSU.

If the computer boots and runs, then the original PSU would seem to be faulty.

If the computer still doesn't boot, then the motherboard may be faulty.

 

[chaos_viper15]

I dont think its the mainboard cause i switched it 2 times but i will try the others, thanks for your tips.

I was trying it on a other system but my gpu fans will be at max rpm...