Hey everyone! I'm running into a frustrating problem with my PC. It was working perfectly until yesterday, but now when I press the power button, everything powers up—the fans are spinning, including the CPU and case fans—but there's no display. My monitor shows no input, and then the system just restarts, getting stuck in this endless loop.
I noticed some weird signals from the motherboard (I'm using an MSI H510M-B Pro). The EZ Debug LEDs indicate trouble: the CPU red light blinks for a moment, then the DRAM orange light stays on for about a second, followed by a brief flicker of the VGA green light before it jumps back to the CPU light. This cycle keeps repeating.
I've tried reseating my single RAM stick and checked the HDMI connection—both seem fine. I only have one RAM stick, so I can't test another one. I haven't gone further in to check the CPU or motherboard since they're under warranty, and there haven't been any beeping sounds because my motherboard doesn't have an onboard speaker. I did notice that the airflow setup might be all exhaust, but I'm not sure if that's related.
I'm considering taking it to a shop, but I wanted to ask here first in case someone recognizes this LED pattern. Any tips or insights would be greatly appreciated!
2 Answers
If your CPU has integrated graphics like Intel's UHD 630, you could try connecting your monitor to that to see if it gets a display. If not, maybe trying a different GPU would help.
I don't know... I think it might be more about the RAM than the CPU since the CPU light only blinks briefly, but the DRAM light stays lit for about a second. It kind of seems like the motherboard is trying to check the RAM but is failing, which could be a clue. But definitely consider getting the CPU checked too!
Related Questions
Lenovo Thinkpad Stuck In Update Loop Install FilterDriverU2_Reload