Whenever this PC restarts—whether through Windows, the BIOS, or the physical Reset button—the system powers back on without displaying anything. A complete shutdown followed by pressing the Power button starts it normally, and the computer then works without issues.
The problem first appeared immediately after a power outage. The PC initially came back on with no video, but after forcing it off and starting it again, it booted normally and completed a Windows update. Since then, every restart results in a black screen, while cold boots continue to work.
The current hardware is a Ryzen 5 8600G, an ASUS RTX 5060 connected over DisplayPort, an ASUS B650 motherboard, a Corsair 650W power supply, and 16GB of Kingston DDR5-5600 memory. Because the issue also occurs when restarting from the BIOS, it seems less likely to be caused by Windows. I'm concerned about updating the BIOS because the restart problem could make the update risky. What should I check first, and could the power outage have damaged the motherboard, graphics card, or power supply?
2 Answers
The fact that this began right after a power outage is important. Since a cold boot works but a warm restart consistently loses video—even from the BIOS—this points more toward hardware or firmware initialization than a Windows problem.
I’d start by clearing the CMOS and loading the motherboard’s default settings. Then power the system off, unplug it, and reseat the RAM, graphics card, and all motherboard and GPU power connectors. If possible, also try starting with one RAM stick at a time and test another video connection or cable.
If the behavior remains, the outage may have damaged or destabilized the power supply, graphics card, or motherboard. I’d avoid flashing the BIOS until the restart problem is understood, since an unreliable restart makes firmware updates unnecessarily risky.
Because the display is connected to the RTX 5060 through DisplayPort, try testing the motherboard’s video output from the Ryzen 5 8600G as well. Remove or temporarily disable the dedicated graphics card if practical, then see whether restarts produce video through the integrated graphics.
You can also try a different DisplayPort cable, HDMI instead of DisplayPort, and another monitor input. If the integrated graphics works during restarts while the RTX 5060 does not, that would narrow the problem to the graphics card, its power delivery, or display initialization.
I’ll try clearing the CMOS, reseating the components, and checking the connections first. The issue definitely started with the outage, so I’m also going to keep the BIOS update on hold for now.