The computer fails to start, not even when accessing the BIOS settings.
The computer fails to start, not even when accessing the BIOS settings.
PC failure to start, even when accessing BIOS. This case is puzzling—I was operating normally yesterday, just playing music, and it just powered off. When I tried to restart, the CPU fan cycled on and off repeatedly, with no display output. I followed numerous troubleshooting steps, but here’s my setup: CPU – Ryzen 7 3700X, GPU – Powercolor RX 6800X, Motherboard – Gigabyte Aorus X570 Elite, RAM – 2x8GB G-Skill Trident Z, PSU – EVGA 750BP, SSD – Samsung 970 EVO 500TB.
First, I removed the graphics card and connected it via the motherboard’s HDMI port; it showed nothing and kept behaving erratically. I also tested a spare GTX 1070, which didn’t produce any signal. Swapping RAM sticks didn’t help either. After replacing the power supply with a 600W thermal unit, the issue persisted. Based on these findings, I suspected the CPU or motherboard was faulty.
I replaced the motherboard with an MSI B550 Tomahawk and tried booting again—still no success. I removed RAM, swapped GPU and PSU, even changed the CPU, but nothing resolved it. I’m convinced both components failed simultaneously. Anyone have any suggestions?
It might be due to several issues. The symptoms you mention resemble problems with the CPU, RAM, or motherboard. A PSU failure would likely mean no response at all. Check if your board displays a POST code or LED indicators; accessing this information could help identify the problem more clearly.
The orange accent lights are turning on, but there are no error codes or beeps. Power seems to be reaching everything. I've tested all RAM slots with different sticks, but none produced any display output. It’s possible the motherboard and CPU failed together. This scenario hasn’t been reported before, so it might be unusual.
The only possibility I can think of for damaging several components at once is a power supply delivering an unexpected voltage surge. I don’t know how often this happens, but the fact that the PSU is still operational suggests something else might be at play. The board’s VRM could have experienced a total failure, potentially harming parts, though I’m not sure if that really occurs.
Sure, I'm happy to help. Just let me know what you'd like to adjust next.
I shared the same idea about the PSU, but didn’t think about the VRM kamikaze feature—it really could work. The next step is purchasing a new motherboard and checking if both a new motherboard and CPU resolve the problem. I’ll let you know once I try it. Thanks!
I installed the new motherboard, connected it with the updated CPU, and still couldn’t get it to start. Eventually, I replaced the RAM with extra I had, swapped the power supply, and moved to the 1070. It finally booted! Is this proof that my 750-watt power supply really damaged everything? Sounds crazy, but maybe that’s just how things go. The 6800xt was a nice surprise.