Need some clarification

tultal4

Reputable
Apr 26, 2014
18
0
4,510
Hello forum members

I need some help, here are the relavent specs first:
AROCK Z68 PRO 3 (mb)
SANDY BRIDGE i5-2500 (cpu)

the thing is I have a ram stick of this kind:

1X4GB kingston ddr3 1600MHz CL9

http://www.kingston.com/en/memory/search/Default.aspx?DisPartId=KHX1600C9D3B1/4G

I wanted to know why does the latency is wrote that way ("cl9")
and not like how other manufacturers mention it? i.e "9-9-9-24-2N"

I am asking this because I wanted to expand the ram to 2X4GB
and I realized that to do that I need to match:
MHz
Voltage
Cl
and non mandatory brand match

so I got confused when I couldnt match the cl of my existing ram.
 

tultal4

Reputable
Apr 26, 2014
18
0
4,510
thank you for your comment Tradesman1

I think I just gonna buy a 2X4GB kit and be done with it, I couldn't even find another 1.65V ram stick locally.
just for general knowledge your saying that if a manufacturer only writes "cl9", it is actually 9-9-9?
and if so what about the tRAS? I have seen latency formatted like this "tCAS-tRCD-tRP-tRAS"
but 9-9-9 only answers three out of four sections. is the fourth one neglectable when it comes to pairing it with another ram stick?