cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Terga
Fanfold Paper
Posts: 2
Registered: ‎02-12-2018
Location: SE
Views: 1,133
Message 1 of 5

Lenovo Legion Y720-15IKB - RAM upgrade, CAS Latecy.

Hello,

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?

Thanks

 

sclexman
Bit Torrent
Posts: 4,580
Registered: ‎11-22-2011
Location: US
Views: 1,104
Message 2 of 5

Re: Lenovo Legion Y720-15IKB - RAM upgrade, CAS Latecy.

Typically the lower the CL, the better.

Sample crucial memory:

http://www.crucial.com/usa/en/compatible-upgrade-for//legion-y720-15ikb

Various version of 16GB sticks with different CL.

 

All memory will run at 2400 MHZ max.    

Terga
Fanfold Paper
Posts: 2
Registered: ‎02-12-2018
Location: SE
Views: 1,089
Message 3 of 5

Re: Lenovo Legion Y720-15IKB - RAM upgrade, CAS Latecy.

So there is no limitation in the motherboard or BIOS regarding CL unlike the RAM clock frequency which will always be limited to 2400MHz? 

sclexman
Bit Torrent
Posts: 4,580
Registered: ‎11-22-2011
Location: US
Views: 1,082
Message 4 of 5

Re: Lenovo Legion Y720-15IKB - RAM upgrade, CAS Latecy.

Guru
Posts: 3,429
Registered: ‎04-02-2014
Location: MX
Views: 1,080
Message 5 of 5

Re: Lenovo Legion Y720-15IKB - RAM upgrade, CAS Latecy.

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.

---------------------------------
Current System - Lenovo Y720
Y720 REVIEW - Youtube Link (Opens in New Tab)
If your experience was good today, please feel free to give KUDOS. It Ain't Over, 'til it's over.

Check out current deals!


Shop current deals

Top Kudoed Authors