PC suddenly crashing and losing connection to monitor

Hey everyone, I’ve been dealing with an issue for the past week and I’m completely lost now. I’m using an ASRock RX 7600 that I’ve only had for about 3 months (bought new from Amazon), and out of nowhere, it started randomly losing signal to the monitor. The display goes black, the monitor says “No Signal,” but my PC stays on, and the VGA debug light on my motherboard turns on solid white when this happens.

Here’s what I’ve done so far:
• Fully reinstalled AMD Adrenalin (used the clean install option)
• Updated every possible driver, including chipset and GPU
• Updated the BIOS to the latest version
• Reseated the GPU multiple times
• Cleaned the GPU’s PCIe connector with isopropyl alcohol
• Replugged the DisplayPort cable and tried different ports
• Confirmed GPU temps stay between 50–60°C
• PSU seems solid and no power-related restarts
• No overclocking at all

The weird part is, my PC boots up totally fine, but now it crashes at completely random times — sometimes while gaming, but mostly after closing applications like Spotify or Google Chrome. The programs I use aren’t heavy at all. This issue started right after I rewired my JFP1 header (front panel connectors), and I didn’t touch the GPU during that process, so I’m not sure if it’s related or just coincidence.

I've also gone through and physically inspected every component in the case — GPU, CPU cooler, RAM, motherboard, PSU cables, and even the SSD — and nothing appears damaged, loose, or out of place. Everything looks clean, properly seated, and free of dust or debris.

My specs:
• GPU: ASRock RX 7600 8gb
• CPU: AMD Ryzen 7 5700X
• Motherboard: MSI B550M PRO-VDH WiFi
• RAM: Corsair Vengeance LPX DDR4 32GB
• SSD: Western Digital 1TB Blue SN580
• PSU: Cooler Master MWE Gold 750 V2 (750W, Full Modular, 80+ Gold Efficiency)

Would really appreciate any help, ideas, or things I haven’t tried. Thanks in advance!