The new build functioned properly for a couple of days but has stopped working now.
The new build functioned properly for a couple of days but has stopped working now.
I constructed a new PC yesterday (details below) and it functioned perfectly for two days. I returned from work today and attempted to power it on, but it doesn’t start. Pressing the power button lights up the motherboard and power button, yet nothing else happens—no fans are running. I’m really puzzled because everything remained unchanged since last night, no one touched it or came near it. I don’t get how it worked well before and then suddenly stopped working after sitting idle. Any assistance would be invaluable. So far, I’ve verified all connections, checked the power supply, unplugged peripherals, and reset the CMOS. The system uses an i5-13600k, Asus ROG STIRX z690, E MSI X Trio RTX 4070, 32GB Corsair RAM, Samsung 980, 2TB M.2 SSD, 850W Seasonic PSU.
What method did you use to restore the CMOS? Did you disconnect the power supply? If yes, attempt to connect two CMOS pins on the motherboard to reinitialize it—sometimes removing the battery can help. Replace all RAM modules and see if that resolves the issue. If not, test each RAM slot individually by booting with only one stick in a slot at a time. What message appears on the small display near the top right of your board?
Please reach out to customer support. Try shorting out the CMOS pins again.
In practice, you're likely facing a series of frustrating issues, checking one part at a time. If it performed well under stress and then stopped unexpectedly early, it probably indicates a hardware problem. Before making any purchases, consider reinserting the CPU. If that doesn't resolve the issue, proceed by buying a replacement CPU first, followed by RAM and then the motherboard, swapping components individually. Once you identify the fault, return or initiate a return/refund process as required. Another option is to have a store test the unit using their verified parts.
I was first thinking about a dirty power surge or similar issue that might have ruined your PC. That seems like the only reason I know a computer could shut down so quickly. The main problem with power events is you don’t need to be close to the machine when it fails. Moving to Micro Center is a smart move if you don’t want to replace all your components in an old system. This also explains why having a backup PC or preserving parts is a good practice before upgrading.
1. Shut down the PSU via the back switch. Hold the power button for 30 seconds. Restart and attempt to boot.
2. Remove all components except CPU and power. Use a screwdriver to connect power pins. If RAM fails, it’s a positive indicator. Reassemble step-by-step: RAM first, then GPU, drives, peripherals. Or center the board if preferred.