Connector size and power limits can be mixed up easily.
Connector size and power limits can be mixed up easily.
I’ve reviewed the discussions and found varying reports about CPU power limits. Different sources cite 150, 250, 336, or even 384 watts depending on the model and configuration. The inconsistency likely comes from differences in motherboard design, cooling solutions, and how power is measured. Many factors influence these numbers, such as the CPU’s efficiency, the motherboard’s thermal management, and whether it’s a stock or overclocked build. It seems the lack of consensus stems from limited standardized testing and diverse build setups. You’re not alone in feeling confused—this topic can be tricky to pin down.
There's spec and there's what it will usually handle and there's what you can get to work. Spec for a 4pin CPU connector is 100W. You can 100% reasonably expect it to take 150W. If you're pushing much past 200W you should be aware you're on the edge and if you're up to 250 you should have a 10+lb fire extinguisher and not leave it unattended. An 8 pin is just 2x4pins.
Here’s a rephrased version of your text:
This document outlines the specifications for the ATX interface connector. It also covers the EPS power connector used for the CPU. The maximum power rating applies when considering each 12V line multiplied by 12V, reflecting both official support and actual capability. The first two figures represent officially supported limits, while the latter two indicate the real-world performance.