I turned on my PC and watched the motherboard status light progress from red to orange and then white. After that, it stays on the white light and never reaches the BIOS. My monitor shows no signal, and the keyboard and mouse do not appear to power up either. Turning off the power switch on the back of the case and starting it again made no difference.
The PC is a prebuilt system with an AMD Ryzen 5 5600G, and I recently installed an RTX 3050 8GB. I've already had issues with the graphics card, so I opened the case and reseated the PCIe connections, but the problem remains. The power supply is rated at 850W. I'm not sure of the rest of the specifications. What should I check to find out why it won't boot?
3 Answers
A white motherboard status light commonly points to a graphics or display initialization problem. Since the RTX 3050 was recently installed and has already caused trouble, remove it temporarily and connect the monitor to the motherboard’s video output from the Ryzen 5 5600G. If the system then reaches BIOS, the issue is likely the card, its power connection, or compatibility with the system.
Start with a minimal-hardware test: power the PC down, unplug it, disconnect the RTX 3050, and leave only the motherboard, CPU, one RAM stick, and the onboard graphics connected. Clear the CMOS according to the motherboard manual, then try booting again. If it works, add components back one at a time to identify what causes the failure.
Before assuming the graphics card is dead, list the exact motherboard and all installed components. Also check that the monitor cable is connected to the intended output, try another cable or monitor input, and confirm whether the graphics card’s fans or indicator lights behave normally. Reseat the RAM as well, since a poor connection can prevent a display from appearing.
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