Discuss 8-pin and 4-pin CPU power connectors on the motherboard
Discuss 8-pin and 4-pin CPU power connectors on the motherboard
I assembled a PC using an ASRock B650E Steel Legend WiFi board. When you examine the photo, both EPS CPU connectors appear identical. I bought a new PSU with two EPS cables—one 8-pin and another combining two 4-pin connectors. The 8-pin fit perfectly, but the 4+4 combo didn’t align. The manual suggests splitting the 4+4 into a single 4-pin for this setup. I did that, and everything functions properly. What concerns you is whether this arrangement affects power delivery or causes limitations in current handling or overclocking potential.
Essentially nothing. On setups where it really counts, using fewer EPS connectors than needed can lead to overheating if you supply more current than the cable can manage. The 8-pin EPS cable supports around 400W, and no Ryzen processor can safely draw over 200W without proper cooling at room temperature. You could remove the 4-pin connector without any adverse effects; the extra 8-pin is mainly for marketing rather than power efficiency.
You only need one 8-pin EPS connector, it’s rated for 336 watts, but your CPU won’t consume that much power. The additional 8-pin on the left is reserved for heavy overclocking and to appear like a premium build or marketing feature. I’ve never used more than one 8-pin EPS on any board, even with my 9900k pushed to 5.1GHz across all cores, and now my 7700x.