Max motherboard ram speed?

[Roreo]

Operating System
Windows 10 Home 64-bit
 

CPU
Intel Core i7 4790 @ 3.60GHz
 

GPU
NVIDIA GeForce GTX 1050 Ti (ASUStek Computer Inc)
 

RAM
12.00GB Dual-Channel DDR3 @ 798MHz (11-11-11-28)
 

Motherboard
Acer Predator G3-605 (LGA1150)
 

500 W PSU
 

So i got a old PC i'm trying to fix upi, where my one of my rams has stopped working. been thinking of upgrading
them to ger the pc running again. However i cannot find any information about the max speed for rams on my MB.
Been tryting to search via my product number (DT.SQYEQ.083) however still cant find anything telling me the max of it.
It's a pretty old system running DDR3 rams. If someone could help me with this i would appreciate it alot as
i am not very good at this stuff. Kind regards

[goto10]

usually with ddr3 ram, maximum you should buy is ddr3 at 1600mhz, few motherboards can do 1866 and being a intel cpu might not see a improvement on faster ddr3

 

if for any chance, the motherboard only can push ram up to 1066 or 1366mhz, the 1600mhz ram will be forced to work at those speeds