Interested in VRM technology?
Interested in VRM technology?
Many have debated that a superior motherboard offers greater VRM or additional phases for the CPU. My setup uses an MSI Z490 Pro with an 8-pin EPS and an extra 4-pin EPS. It boots fine even with just the 8 pins connected. The real question is whether all the VRM are being utilized or if they're operating at partial capacity because only eight pins are connected. Personally, I think the difference isn't noticeable unless you draw a substantial amount of power.
If it features 8 plus 4 pins, I suggest linking both together. The 4-pin connector isn't meant for display—it might create a fire risk because all the CPU power flows through just 8 pins instead of being distributed across 12. This could be safe depending on your CPU model and its clock speed.
8-pin configuration handles up to 235W continuous power. For this, you'd likely require a powerful overclocked CPU running at full capacity all the time. I haven’t connected the 4-pin version since I prefer a cleaner setup without extra cables.
The 10700K handles over 235W even at standard speeds: https://www.guru3d.com/articles-pages/in...iew,5.html The 10900K delivers up to 300W at stock speeds: https://www.guru3d.com/articles-pages/in...iew,5.html
You don't need the extra four pins, and it doesn't pose a fire risk. It's unclear why you're raising this point—check out Buildzoid for evidence. Some boards even use solid pins (like Gigabyte), which can deliver more than 384W compared to a regular eight-pin setup. This highlights that the entire PC isn't just powered by the CPU.
This setup supplies energy to the CPU while the VRM manages power conversion from 12V down to the CPU’s requirements. Typically, certain VRMs require around 5V for proper operation, which is available through a 24-pin connector. It should function perfectly.
Even under maximum CPU usage, the remaining components stay within 50W. At full CPU load, the Athlon 3000G uses just 59W... That’s the key takeaway—I suggest using the 4-pin connector for the 10700K and opt for it on the 10900K for extra safety.
You don't require the additional 4-pin connector. It's only necessary when pushing ~5.2-5.3GHz+ across all cores on a 10900K while using Prime95 Small FFT, but by then you'll likely already stressed the VRMs on your Z490-A Pro.
He remains confident about using just the 8-pin connector. As noted earlier, exceeding that limit could cause the VRM to overheat, requiring significantly stronger cooling to manage the CPU's high temperature.