I recently got an RTX 5080 (specifically the MSI Ventus X3, which I snagged for a good deal) and made sure to set it up properly. I'm a bit of a worrier when it comes to PC components, especially with the issues surrounding the 12VHPWR connector for the latest series. I've been careful with cable installation, ensuring it isn't bent too much, using the cable that came with the card. However, I checked the voltage on the 12VHPWR and noticed something concerning. It appears that my voltage readings are slightly out of the safe range. The HWinfo tool shows: GPU 12VHPWR Minimum: 11.722V, Maximum: 11.937V, Average: 11.889V, and I've read that the maximum acceptable difference should be 100mV, but I'm hitting 200mV. Should I be worried? Also, I'm considering getting a new cable, but I can only find 2x PCIE options instead of the 3x that came with my card. Any thoughts?
2 Answers
It's generally recommended to use the cable that came with your PSU when possible, especially if it has all the right connectors. The one that came with the GPU might not be the best bet if you're seeing high voltage differences. But since you mentioned your Corsair 1000X PSU from 2021 lacks a 12VHPWR cable, you're probably good to use the one that came with the GPU for now, just keep an eye on those voltages!
I also got this GPU, and I made sure to use the cable that MSI provided. It does seem to work fine, but I recommend keeping an eye on the voltage during heavy loads. Just don't forget to check your PSU's specs too; if you notice any significant drops, that might be a red flag.
Absolutely, load testing can reveal a lot. Have you seen steady voltage numbers when your GPU is under stress?

Yeah, I get that. Just make sure you monitor it closely under load—could help identify if it's a real issue or just a quirk.