Device powers up and monitors are operational, yet there is no screen visibility.
Device powers up and monitors are operational, yet there is no screen visibility.
I powered up my PC today after a couple of weeks away, only to face this problem. It started working perfectly a few weeks ago. Now it turns on and lights up, fans spin, but the screen isn’t receiving any signal. I tested the display with my laptop—it functions normally. The specs are listed here: https://pcpartpicker.com/list/3NqxL9. It’s currently running Windows 10 64-bit. The BIOS was updated about a month ago without issues, and the two Corsair RAM sticks are recent additions, though they worked fine the week before I left. I’ve tried several fixes: turning it off and on repeatedly, removing all extra drives (except one M.2 I didn’t want to take out), reseating the RAM, and booting with different RAM sticks. I also removed the Wi-Fi card and GPU (with just one RAM stick in slot 2). Cleared CMOS by shorting the pins—though the CPU debug light works normally, the RAM light doesn’t. No keyboard or mouse lights up. Fans seem to spin faster than usual. Anyone have ideas on how to resolve this? Or is my motherboard damaged? I also removed the power supply and tested cables/pins with a multimeter; everything seems fine, so the PSU might not be the problem.
It seems you haven’t encountered this problem before. The most effective way to check if the issue lies with the motherboard is to replace it and see if the symptoms change. That said, good luck solving it!