My PC randomly stops displaying and I have to reseat GPU/CMOS/RAM to fix it — what could be causing this?

Hey everyone, I’m trying to figure out a recurring display problem with my PC and hoping for some insight.

Specs:

• CPU: AMD Ryzen 5 7500F
• RAM: 16GB x2, 6000MHz, EXPO
• GPU: AMD Radeon RX 6700 XT
• PSU: Corsair CX650
• Monitor: Asus TUF Gaming VG259Q5A 24.5", Fast IPS, 200Hz

Here’s the situation:

1. First occurrence:
   • I slept my PC overnight. When I tried to wake it up, the monitor displayed nothing.
   • I was connected via HDMI at the time.
   • After reseating my GPU, CMOS, and RAM, the PC displayed again, and I switched to DisplayPort.
2. Second occurrence (a week or two later):
   • I tried switching back to HDMI, but the display didn’t come back.
   • I reseated the GPU first → didn’t work.
   • Then GPU + CMOS → still no display.
   • Finally, GPU + RAM + CMOS → it worked.

Other notes:

• Randomly, my monitor sometimes shuts down and shows “no signal,” and I have to power cycle the monitor to get it back.
• GPU fans not spinning at boot seems normal for me, but the system is otherwise alive (Caps Lock toggles, keyboard lights, motherboard LEDs on, CPU fans spinning).
• This has happened twice, both times seemingly triggered by either waking from sleep or switching inputs between HDMI and DP.
• I have my work laptop connected to the same monitor. I noticed that before, my system and monitor can auto-detect to switch to my DP when i shut down my work laptop. Now, it doesnt display anything when I turn my PC on and the input display is still on HDMI, even after switching to DP input on my monitor. I have to force shut down my PC, then switch my monitor input to DP, then turn it on.

Question:

What could be causing this? GPU initialization issue, monitor handshake problem, BIOS/EXPO settings, or something else? Any advice on preventing this from happening again would be appreciated.