The PC keeps running despite attempts to shut it down.
The PC keeps running despite attempts to shut it down.
I used my old computer for more than a decade running an i5-4690K, but recently diving into video editing forced me to upgrade. While rendering 4K footage, my system finally gave up. It kept working just barely, but when I powered it back on, everything reset—fans spun once, then the power supply light lit up and the BIOS wiped all settings. XMP was disabled too. Here’s what I’ve done so far: I replaced the case because the original one was too small for cooling and had no room for a custom water cooler. The problem continued, so I swapped the power supply, but that didn’t help. Then I tried a new motherboard, but I can’t overclock now since my settings reset every time I turn it off. Even setting fan curves is impossible because they default when I shut it down. Right now, I just keep the power button pressed to keep it off, hoping someone can assist with this tricky situation.
Yes, you checked that you've properly connected your power/reset switch.
yeah, I've actually run it outside the case without the power switch hooked up at all it, as long as the 24 pin connector is it, the pc will turn on. I should also note, the moment I flick the switch on the back it turns on as well. no need for a power button
That sounds like a feature I used to use. It's a BIOS setting: power back on on power loss/restore. You mentioned replacing the case, and not using a case. You also mentioned having replaced the mobo and the PSU. So just about all core components, have been replaced. Try it without memory installed, then try it without CPU installed, then without GPU. (remove one part at a time) Even without those critical components, your mobo should be able to power on while using the power button. (and report issues, like no CPU) Check if it will auto-start again, when powering down the system and figure out which component is causing this issue.
After several tests, I'm still struggling to pinpoint the problem. I've checked all hardware aspects—no RAM, no GPU, any drives connected, even a bare board with only the 24-pin plugged in and no connections. When the power switch is turned on, the fans start spinning and the system attempts to boot, but it fails. I'm open to trying anything except replacing parts until the issue is resolved.
PSU lacks the capability to restore power automatically. Your motherboard appears to handle this issue, particularly after all parts were removed and it occurred again. As before, it's likely a BIOS configuration. Typically, you need to turn it on. (This has been my experience over the past few years.) Your system might already have this feature enabled by default. The goal is: when a power outage happens and then electricity returns, the computer should restart automatically. This isn't typical behavior—disconnecting power or using the switch on the PSU isn’t normal. You should verify your BIOS settings, consult the manual, or reach out to the manufacturer if you can’t locate it.
this was initially my first reaction when things began in January after setting this up. I revised the bios and checked all possible configurations to find a cause, but nothing worked. I reached out to Gigabyte multiple times—so many times, actually. After about two months of trying to get assistance, I decided to give up. Eventually, they offered a trade at Microcenter, swapping my PSU for a similar one, which unfortunately didn’t help. They then replaced my PSU with another model of the same type, but that also failed to resolve the issue.
Just spoke with Gigabyte, they didn’t offer much help. They seemed overly sure their product wasn’t theirs—thought it might be a Windows install issue or a faulty PSU. They suggested trying a PSU swap first, then CPU and RAM swaps, only to ask if RMA is needed for the board. Replacing the board actually worked perfectly. Also, I was on hold for about 6 hours and 30 minutes; they said they have a callback system but never reached me, which was a nice distraction while I was at work.