Encountering unexpected power cuts without a clear cause.
Encountering unexpected power cuts without a clear cause.
Over the past weeks, the machine has been experiencing unexpected crashes without any warning signs. These occur while playing games or even during BIOS setup. Event logs remain clean, and HWInfo logging stopped before the crash with no errors detected. Temperatures are normal, and the system functions normally otherwise—no BSODs, lag, dropped frames, or other issues. I purchased this build in November last year and it performed well initially. A camera recorded a short clip of the incident around 15 seconds: https://youtu.be/-Hcfiq7MTns. The component list is available here: https://pcpartpicker.com/list/9CNPKq. I connected it to a UPS (1500VA/900W) and a monitor, with the UPS drawing up to 690W during gaming. No power alerts were triggered prior to the crash. The problem seems random, sometimes lasting hours without issue, other times only minutes. I’ve tried different RAM configurations but haven’t resolved the issue.
There appears to be a power problem with GPU spikes. Would you like me to run it without the UPS?
This setup doesn't resemble UPS because the AIO didn't shut down when the computer crashed. Have you verified your PSU has multiple 12V power rails? It's possible all your 12V connectors were connected to a single rail, causing overload during GPU spikes. The fix is to distribute power usage evenly across the rails. If you're unfamiliar with power rails, imagine two or more power supplies inside one enclosure—one can become overloaded while the other remains idle.
Oh wow, these crashes are really frustrating. Troubleshooting them can be tricky, but let's start fresh. Was anything altered right before the first crash? It seems similar in BIOS too. So, I’d disconnect all non-essential components and see if the issue persists. I’ve noticed faulty USB devices, SATA disks, and advanced fan controllers often cause problems. If it continues, I’d remove every RAM stick and test them one by one according to the motherboard manual—starting with the ones listed first. Also, try lowering the speed on things like XMP settings. Since BIOS doesn’t draw much power, it’s likely a CPU or mainboard fault if the issue remains after that. If you use any memory sticks, swap them out one by one to identify the culprit. Just keep track of what you changed—sometimes it’s a single component that breaks everything.