Overview
The power supply we are using today is the Corsair RM750x (2018). This particular unit is built by CWT and features an LLC resonant converter with a modern half-bridge primary. The secondary features a synchronous rectification and DC-DC VRMs for the minor rails. The power output distribution for this unit is similar to other 750W units in its class and reproduced below. Externally, this unit features a modular design and utilizes Corsair’s “Type 4” modular cables with the cable lengths being used noted below.
The RM750x (2018) is advertised as being a single 12v rail power supply with a capacity up to 62.5A (or ~100% of the unit’s capacity) if necessary. The minor rails (5v and 3.3v) have a capacity of 25A each and the combined capacity of those two rails is 150W. Combined with these outputs, we will be using the 24pin ATX connector, 8pin EPS connector, and two of the 8pin PCIe connectors for our testing today as we would do with any other 750W unit we test. The remainder of the cabling will not be attached to the unit.
Now, with that all covered, let’s move on and see how things go when we start comparing our two different length cable sets!