Question What is the difference between CL 19 and CL 19-19-19 in ram?

rahulpkamath1997

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Jan 25, 2018
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I want to purchase a ram stick, I am not sure of my current installed rams CAS Latency, but i know its got 19 as the first number. Online i found two ram sticks, one says CL19 and the other says CL 19-19-19. Dont know which to pick. Please help
Thank you
 

rahulpkamath1997

Prominent
Jan 25, 2018
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510
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Your ram there is 19 19 19 43 or CL 19. 1330 single data rate times 2 = 2666MHz double data rate (DDR).

Any ram you buy, match those four numbers, speed and voltage.
Ok great, that clears stuff. But here's the thing. I am looking at this RAM stick: ADATA Premier 2666 Mhz SO-DIMM DDR4 8 GB (Dual Channel) Laptop SDRAM (AD4S266638G19-R).
According to its specs, everything checks out. Its got that same CL 19-19-19 config, but i could not find anything regarding that final tRAS 43 cycle time. Checked all over the net. So you reckon the tRAS is standard or should i worry about it?
 

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