How to use higher clocked DDR 5 RAM on Lenovo Legion 7 16ARHA7?

I have a pair of Kingston Fury KF556S40IB-32, but can’t get it to work at it’s original spec: 5600MT/s 40-40-40 1.1V
According to HWInfo, it is currently stuck at: 4800MT/s 36-35-35 1.1v

There is no voltage overclocking required, just need to be able to up the max clock from 2400Mhz to 2800Mhz per channel.

Any help on this would be much appreciated!