Will these settings work with BIOS 1.70?
Here, latency settings and more at 4000MHz CL18 completely stable for Crucial Ballistix DDR4 SO-DIMM 16GB (2x8GB) 3200MHz CL16 memory sticks, tested with an AMD Ryzen 5 PRO 4650G and Asrock X300M-STX(BIOS v1.58) motherboard (from DeskMini X300). I wrote in yellow more relaxed latency settings in case of instability coming from the memory controller in the InfinityFabric because having tested ten different Ryzen 4xxxGs, the quality/stability of their memory controllers could vary enormously from one processor to the next other and it does not matter the model (by this I mean that even if it is a 4700G/4750G with fully activated CPU and iGPU cores implies by that a general quality of superior silicon and well, in fact it doesn't have the slightest impact)
Sorry for my bad English