Display not found initially; system is now operational.
Display not found initially; system is now operational.
Backstory: Recently my computer failed to boot. I discovered a RAM issue that resolved the problem. A few weeks later, while playing a game, I encountered a blue screen. I repeated the fix, but this time only once it worked, though RAM would disappear afterward. For a few days I played with just 1x4GB RAM, it functioned properly but later games would freeze briefly (Deus Ex, Dying Light). I assumed it was due to insufficient RAM since it worked on simpler titles. I added another 8GB RAM (total 12GB), which improved performance, though Deus Ex still had glitches. Problem: On the same day I restarted, my PC didn’t show anything on screen—GPU wasn’t detected, though LEDs and fans worked. I removed the CMOS, reinstalled drivers (failed), cleaned the GPU with a cloth, checked the PCI slot, and reinstalled it. This time both GPUs didn’t display properly. I thought my GPU was dead, but today it worked again. Question: What might be causing this? Could it damage my GPU in the long run? What steps should I take to avoid this? Possible causes: Dust, old specs, power supply, or driver issues. Specs: i5-3470, Seasonic 500W, 80+ PSU, ASUS B75m, 12GB RAM, Sapphire Rx 470, 4GB. Edited March 14, 2022 by Mark0047
Checking if it's using 1x4 and 1x8 or 3x4 memory configurations. Regardless, if you previously faced RAM issues without replacing any parts, I'd begin there.
After several BSODs and random crashes, I ran memory tests with a mem86. It seems the issue might stem from RAM speed differences—4GB at 1333MHz versus 8GB at 1600MHz. Using a single stick didn’t seem to cause problems, especially in games. Could this be why the GPU acted oddly but resolved itself? P.S.: I was completely unaware of RAM speed variations before.
I agree you're on the correct path. It's reassuring someone else pointed it out and we both reached similar thoughts. DDR2 boards tend to be more sensitive to RAM speeds compared to newer models. A 1333mhz frequency generally works well, while 1600mhz is inconsistent. At first glance, it seems the problem lies with your memory, not your GPU. Memory problems can cause strange behavior—PC won't boot, fans spin wildly, display stays blank, or it runs smoothly but crashes immediately. Try using 4GB RAM for a few hours with basic tasks like browsing or light games to confirm.