Searching for an X570 motherboard featuring an extra 6-pin PCIe power port built into the board itself.
Searching for an X570 motherboard featuring an extra 6-pin PCIe power port built into the board itself.
Hey everyone... I need an X570 motherboard with an extra 6-pin PCIe power port built right onto the board. Normally you'd have the standard 8-pin EPS12V for the CPU and then a separate 6-pin for the PCIe slots. The chipset looks pretty rare these days.
Why? There should be no need for that with a good psu. The only times I saw those was on boards back in the day that had a absolutely ridiculous amount of x16 slots and were dual socket. Basically every board is fine with the connectors it has out there.
If you were to tell me you're mistaken, especially with the new 3080 and 3090 cards, they could be causing voltage issues on PSUs due to their fast transient loads. The tight protections on some boards make the voltage drop noticeable, which affects the UVP latch. Increasing power would reduce these drops, solving the problem. I've tested this in practice, but it worked with a Gigabyte Z490 Vision G board using a 6-pin setup. Right now, I'm looking for one for a Ryzen platform. Not really.
The UVP seems to monitor voltage at the PSU, not just the PSU itself. A superior power connector might address issues by improving connection quality or reducing losses. Your observation is valid—testing in real conditions can reveal nuances.
Ignoring the budget, the only X570 model with extra 6-pin PCIe power (probably under the shield) is the X570 Aorus Extreme. It seems too much for most needs, but it's the only one I recall having that configuration.
The +12V terminal includes a sensing wire in better power supplies.