You should connect two 8-pin power connectors to supply the CPU with ATX power.
You should connect two 8-pin power connectors to supply the CPU with ATX power.
Hi there,
Today I purchased a 7950X and the mentioned motherboard. I have a Corsair HX1000 Platinum 1000W power supply.
Question 1: Should I connect a 2x4 pin connector to both 8-pin ATX power ports, or should I just power one port?
Question 2: Can I use separate 2x4 pin cables for each port?
Check everything in, why did you purchase all those high-end items on release day and prefer to save money? Your PSU needs proper connectors. If it doesn’t, switch to a better one.
I understand you were concerned about overvolting the motherboard. You assumed the ports are separate and only needed one 12V connection for the CPU. Regarding your PSU, two 2x4 pin connectors should work if they match the connector type on your motherboard. Just confirm the pin arrangement and voltage requirements before plugging in. Let me know if you need further clarification!
The 8-pin connector supports up to roughly 300-320 watts. The 7950x draws between 250-260 watts when properly cooled. Exceeding this will increase consumption. Although the 250-watt figure is below the connector’s spec, using both cables and connectors is advised to minimize stress on connectors and headers. This reduces heat buildup and power losses in the wiring. Adding more wires doesn’t overload the processor; it simply distributes power more evenly across components, keeping everything stable. You won’t risk overvolting the CPU by using extra wires—just ensure each wire carries less current, which benefits all parts. The motherboard has six headers, three labeled 6+2 PCI-E and four+4 CPU, plus three underneath. These can serve video cards or CPUs; you don’t need to stick strictly to the highlighted pair. Ideally, leave some headers unused on the power supply for flexibility. Updated September 28, 2022 by mariushm power supply, not motherboard