I've recently upgraded my GPU from an RTX 3070 to an RTX 4070 Ti, and since then, my PC has been crashing randomly. The crashes usually occur when I'm launching games, loading levels, or even just sitting in a menu. When it crashes, the screen goes black, the GPU fans max out, and the system becomes unresponsive, forcing me to do a hard reboot. My Event Viewer shows a Kernel-Power Event 41, but there aren't any clear error logs indicating a specific problem.
Here's my setup:
• CPU: i7-14700K
• GPU: RTX 4070 Ti
• Motherboard: ASRock Z790 PG Riptide
• RAM: 32 GB DDR5-5200
• PSU: Apevia 1000W 80+ Gold (not ATX 3.0)
• OS: Windows 11
I've tried multiple NVIDIA drivers, clean installs, toggling XMP settings, resetting BIOS to defaults, and monitoring temperature; everything seems normal. Before the upgrade, my system was perfectly stable with the RTX 3070.
I'm starting to suspect that my power supply might be the issue. Although it's labeled as 1000W, it's an older model and not ATX 3.0. I've read that the RTX 4070 Ti can have large transient power spikes that my PSU might not handle properly. Has anyone else faced similar issues that were resolved by switching to a quality ATX 3.0 PSU (850W or higher)? I'd like to confirm if the power supply could indeed be the culprit before considering other hardware replacements.
3 Answers
It sounds like your PSU is definitely the weak link here. Apevia units are often rated poorly, especially under load with powerful GPUs like the 4070 Ti. You might want to consider getting a higher-tier PSU. Ideally, look for a Tier-A PSU from the PSU tier list since the 4070 Ti requires reliable power delivery, and your current unit probably can't handle the transient spikes. Avoid continuing to run your system with that PSU, it's just asking for trouble!
I had similar issues with an older PSU and switching to a high-quality unit made a world of difference. It not only stabilized my system but also reduced noise and heat. I recommend you do the swap soon, as it could prevent further issues.
Totally agree with GamerGuru99. Those Apevia PSUs can be really hit or miss, and your experience seems typical of their lower-tier models. For a solid upgrade, something like an 850W or higher from brands like EVGA, Corsair, or Seasonic would be much better. They’re known for their reliability and should handle your setup like a champ.
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