Hi Just purchased acer (i7 7500U, No SSD) with 4GB RAM the system was too slugish so i have decided to add more ram the originally installed ram is PC4 kingston 2400. but when i use the task manager it shows 2133MHz clock speed so should i buy 2133 DDR4 or 2400 as one is already installed.
Also it says to make ram run faster u need xmp profile and this needs to be changed in bios. but i think the bios is locked as i cannot see any advance options.
also i have updated BIOS 1.23v
Any sugestions???