X570 Extra 4-Pin Power Adapter
X570 Extra 4-Pin Power Adapter
Hi, I had the same problem recently. My Z390 Aurus Elite motherboard with i9900K didn’t boot using just one connector. Switching to the Corsair RM750 helped because it has two 2x4 CPU slots. I’d recommend getting a PSU that supports this setup. Let me know!
Consider rechecking your post or maybe I should explain everything in simpler terms. One EPS with +12v: 9900kW + Aorus Master: CPU VR VIN: 11.713-11.814v Two EPS with +12v: 11.844v-11.938v. Hmm, what do you think? Do you really understand what a MOSfet does and how it works? If you know, you’d realize why the +12v line drops and why you didn’t reply with such a reaction. The drop happens because of resistance—more current means more resistance. Better cables can help, but you should design for the lowest common denominator, not just for cheap PSUs. I’ll share some advice. Don’t just copy quotes from people like Buildzoid saying “You don’t need a second 12v.” Just because someone has great gear doesn’t mean they’re always right. Did you know the original spec for EPS 12v was 235W continuous power? Not 336W—that’s the maximum burst allowed. And now some folks claim you can push 480W on one 12v? That’s risky—you’ll definitely damage the power connector. Back in the day, people understood power connectors better than today, when they’d fry 4-pin connectors by forcing 165W on them. They learned to use proper ratings instead of relying on guesswork. Nowadays, many just watch YouTube videos or read forum posts and think they know everything. A recent problem wasn’t about damaged connectors; it was with the r9 290X and its dual PCIE connectors split into two parts. The PSU handled it, but the cards started failing over time. Why? Because the connector was under too much strain, causing a gradual drop in voltage—sometimes below 11.25v. It’s important to do your research before giving advice. Sorry if I came across as harsh, but someone needs to remind people what’s right. I used to have a page with original ratings, but it no longer shows up on Google (they actually listed RMS and burst values for the 8-pin connector).
This platform boasts the highest rating available. You can check the details at the provided link. It lacks the RMS rating, which is important for understanding sustained performance. I recall it was focused on power supply topics, though the exact operator remains unclear. Several users have shared their experiences, confirming that 400W is generally considered safe based on community feedback. However, the cable could fail or degrade quickly at such high levels.
From the wires' point of view, most PSU cables use 18-gauge wire rated for about 10 amps. These cables typically have four pairs in an eight-pin design, totaling around 480 watts. I located a socket on Digi-Key and reviewed its spec sheet. It lists a rating of 9 amps, which equals 432 watts at 12 volts. This means you don’t need additional 4 or 8-pin connectors for AM4 CPUs with standard cooling—drawing over 300 watts isn’t feasible under these conditions.
You're asking if using an 8-pin extension with your case is better than having a separate 8-pin and 4-pin setup, especially since the 4-pin part might be more vulnerable.
I’m sorry I seemed a bit frustrated when I shared this. I acknowledge I was a bit harsh. The original guidelines for an 8-pin EPS were about 235W continuous, but I can’t locate the exact document anymore. I shared the reference back in 2016 (between August and October) as I remember the context. At that time, the maximum was 336W burst. Now with all the discussions about power ratings and ports, it’s hard to recall accurately. Personally, I damaged my 4-pin cable by using 165W on a QX9650, since the P5WDH only had a 4-pin connector. I tend to err on the side of caution, even if an 8-pin can handle 165W each side without overheating. This wasn’t an immediate issue—it took over a year of continuous use on a 750W PC Power and Cooling Silencer before it happened.
Hey there! I noticed your message and I appreciate you reaching out. I’m trying to upgrade my PC, but I hit a bit of a snag with the power supply and motherboard connectors. The new rig I have has a 4-pin PSU and a different connector type, while the one I want only offers an 8-pin. That makes me a little confused about how to proceed. I’m not sure what steps to take right now. If you can clarify your setup or let me know more details, I’d be happy to help guide you through it. Thanks for your understanding!