Ram upgrade compatibility?

[Shouvanik]

I currently have gigabyte b75-md3h motherboard and have 8gb corsair vengeance ddr3 1600mhz ram with cas latency of 9 and 9-9-9-24 timing. I want to upgrade to 16gb. Can I get ram from different brands for the next two slots as long as those two sticks are identical? Can I go for corsair vengeance c10 which has 10 cas latency and different timing but same speed? Or do I have to get exact same sticks again i.e. 1600c9 ddr3 from corsair vengeance series?

[Shouvanik]

1 minute ago, Strike105X said:

It's recommended to get the same sticks. 

 

I'll do so then. It's 200rs.(3$) or so pricier, but if it's needed, that's it.

 

Btw are you, by any chance, the same guy from PCSX2 forums?