I've been working on building my first computer and initially, everything was running smoothly. I set up my components (Ryzen 5600, MSI B550 A Pro, 16GB DDR4 RAM, EVGA 600W, RTX 3050) outside the case and it booted up just fine—I even installed Windows. However, after putting everything into the case, I pressed the power button, and nothing happened at all. No fans, no lights, just silence. The BIOS flashback button works, showing a red light when pressed. I'm really worried that I may have damaged my motherboard. Could someone help me figure out what went wrong?
3 Answers
You mentioned that the BIOS flashback button lights up, so it sounds like the board is getting some power. Double check all your power connections—ensure that everything is seated properly. If the board doesn’t POST, you may need to jumper the power pins with a screwdriver to see if it starts. If you can get it to boot that way, then the power switch on your case might be faulty.
First thing to try is to short the power button pins directly on the motherboard. Sometimes the power button itself can be the issue. Also, make sure you have all the standoffs installed properly under the motherboard. If there's a misplaced screw or if you forgot the standoffs, it could cause a short and prevent booting. If after checking those things it still doesn’t work, take it all back out and see if it boots outside the case.
From what you said, it sounds like your motherboard is likely shorting out, possibly due to a screw or incorrect installation of standoffs. I would unplug your PSU, turn it off, and then hold the power pins for about 30 seconds to reset things. Power it back up and see if you get a response. If the PSU is in overcurrent protection mode, this should help.
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