Trending @Accenture; How can I request a new laptop in place of an old one. Is any approval required?

You can raise ticket in workplace support but most probably they will not give

if your laptop is old for 2 yrs then you can

take help and install heavy applications like docker rancher and install images and raise storage issue and performance issue stating project requirements

then ask for re-imaging, do this 2-3 times and on 4th time tell them you are frustrated and ask for ram increase or upgrade