My PC had been crashing during games with a completely green screen and no error message. Eventually, the same thing happened while I was only using the desktop, and since then the computer powers on but shows no image on either monitor. The fans and LEDs work normally. I have disconnected peripherals, tested both RAM sticks individually, tried different power and display cables, reset the CMOS, and removed the graphics card to test the motherboard's integrated graphics. My system uses a Ryzen 7 7700, Gigabyte B650 Gaming X AX V2, 32 GB of DDR5-6000 memory, a PowerColor RX 7900 XT, and an MSI MPG 850 W power supply. What other tests can I perform to determine which component has failed?
3 Answers
Start with the basic hardware checks: reseat the graphics card and confirm that all PCIe power connectors are fully inserted. Since the system works when the GPU is removed and the monitor is connected to the motherboard, the graphics card is the leading suspect. If it still fails after reseating, it may need warranty service or replacement.
The VGA diagnostic light was illuminated, which points back to the graphics card. After removing it and connecting the display cable directly to the motherboard, the computer booted normally. That confirms the rest of the system can start and strongly indicates that the RX 7900 XT has failed, especially given the earlier green-screen crashes.
If there is no display even with the graphics card removed, also check the CPU socket for bent contacts and reseat the CPU carefully. Then try booting with only one memory stick installed in the slot recommended by the motherboard manual. If those checks do not help, the motherboard becomes a possible cause.
It is a two-year-old system that has not been moved or dropped, but I will still inspect the socket and try the proper single-stick memory configuration. I will also perform a full CMOS reset rather than relying only on removing the battery briefly.
I reseated the card and checked the connections, but the problem remained. I do not have another PC available to test the card in, so I wanted to be certain before replacing it.