iBUYPOWER PC randomly black screens, freezes, and sometimes won’t detect a display
I’m having a really frustrating issue with my iBUYPOWER gaming PC and I’m hoping someone can help me figure out what’s causing it.
PC Specs:
iBUYPOWER prebuilt gaming PC
Intel Core i5 CPU
NVIDIA GeForce RTX 4060
16GB RAM
Windows 11
The PC boots into Windows normally sometimes, but after about a minute or when I start opening games, applications, or even a few browser tabs, the screen starts flashing black. It will go black for a second, come back to where it was, then continue doing it repeatedly.
Eventually the entire system freezes. When this happens:
The keyboard and mouse stop responding.
The screen is stuck/frozen.
I have to force shut down the PC using the power button.
What’s confusing is that the issue isn’t always the same. Sometimes when I turn the PC on, my monitor automatically wakes up and detects a signal, but the screen is just black (the monitor is lit up, not showing “No Signal”). Other times the monitor doesn’t detect a signal at all and shows no signal.
A few important details:
This started after Windows was doing updates.
I’ve tried both HDMI and DisplayPort.
Before all of this, I had shut down the PC by pressing the power button while it was still running.
I was able to fix the issue once and the PC worked perfectly for about 4 days, but then the exact same problem came back.
Games were previously causing freezes, but now even opening browser tabs can trigger it.
Sometimes the monitor gets a signal but only displays a black screen, while other times it doesn’t detect the PC at all.
Does this sound like a GPU issue, graphics driver issue, Windows corruption, power supply issue, failing motherboard, or something else?
Has anyone experienced something similar with an iBUYPOWER system? Any troubleshooting suggestions would be greatly appreciated.