02-12-2018 02:42 AM
I am upgrading the RAM memory on a Legion Y720-15IKB from the stock 16GB (2x8) to 32GB (2x16).
The CAS Latecy (CL) should be 17 if I am correct (or at least is 17 in the two momries supplied with the computer).
Given the frequency of 2400 MHz a lower CL will be faster and alot of the RAM moduels that I have found are rated lower (14 in some cases). Is this motherboard dependent and should I try to find a RAM module with CL 17 for optimal performance? Or will it work (and be faster) with a different, lower, CL?
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02-12-2018 07:08 AM - edited 02-12-2018 10:07 AM
Typically the lower the CL, the better.
Sample crucial memory:
Various version of 16GB sticks with different CL.
All memory will run at 2400 MHZ max.
02-12-2018 09:58 AM
There should be no CAS latency limit, it is usually not a metric considered while creating whitelists.
Any good brand RAM should work provided it is 2400 or 2133 MHz. Also, the 2 RAMs should match in specifications.