MSI B550-A PRO – Hardware-Journal

A quick look under the cooler reveals the build-up of tension. Compared to its predecessor, the manufacturer uses two more virtual or one real phases. Another controller was necessary for this. The IR35201 used is often also used for higher-priced boards. The controlled phases, on the other hand, are of a simpler nature and were already used in the same structure with the B450 model. Each phase consists of 4C029N / 4C024N MOSFETs from ON Semiconductor with 46A. There are a total of 10 of them for the CPU and four for the SoC, whereby two of them are always bundled into one. IR3598 are used as a driver or doppler.

Read more @ Hardware-Journal (German)