Ram speed and motherboard

[MrSimSim]

So I want to uipgrade my ram in my pc, I only have 8gb at 2666mhz (2x4 sticks). So I want to add 2 8 gb sticks ontop of the already 2x4gb sticks but the thing is can I do that in the other 2 ramslots and do they have to be the same speed? also If possible could my new ones be at a higher speed than the motherboard has support for? 

Here are the parts:
Motherboard: ASUS Prime B360M-A, Socket-1151
Ram (that I have rn):Corsair Vengeance LPX Black 8GB (2x4GB) / 2666MHz / DDR4 

Please help

[Drama Lama]

They have to run at the same speed and latency

 

2666mhz is the maximum for B360 

Edited July 2, 2020 by Drama Lama

[Haro]

17 minutes ago, Drama Lama said:

They have to run at the same speed and latency

They don't necessarily have to 

As they will be set to run at the same cas latency and frequency

27 minutes ago, MrSimSim said:

ASUS Prime B360M

2666 is the maximum supported frequency.

[TylerDurden!]

29 minutes ago, MrSimSim said:

do they have to be the same speed?

no, you should try to match what you already have, but putting faster memory in is not going to hurt either, it will still just run as fast as the slowest memory you currently have in there

[MrSimSim]

okey, thanks so much everyone, I'll buy 2x8gb sticks with 2666mzh