Jump to content

Different RAM CAS Latency

Corlath
 Share
Posted

I want to upgrade the amount of RAM I have on my LG Gram 13. Currently, I have two 4 GB DDR 2400 sticks with CAS latency 10, 1 soldered and 1 in the only accessible RAM slot. Unfortunately, I cannot find any RAM with the same speed and latency. How much issue would I have if I added a 16 GB DDR 2400 stick at a latency of 14 or 16, which is what I can find?

Link to comment
https://linustechtips.com/topic/1049729-different-ram-cas-latency/
Share on other sites
Link to post
Share on other sites
Posted

If you can't adjust RAM timings in BIOS then it could be a huge problem.  

AMD Ryzen 5800X|  Fractal Design S36 360 AIO w/6 Corsair SP120L fans  |  Asus Crosshair VII WiFi X470  |  G.SKILL TridentZ 4400CL19 2x8GB @ 3800MHz 14-14-14-14-30  |  EVGA 3080 FTW3 Hybrid  |  Samsung 970 EVO M.2 NVMe 500GB - Boot Drive  |  Samsung 850 EVO SSD 1TB - Game Drive  |  Seagate 1TB HDD - Media Drive  |  EVGA 650 G3 PSU | Thermaltake Core P3 Case 

Link to post
Share on other sites
Posted
  • Author
21 hours ago, nick name said:

If you can't adjust RAM timings in BIOS then it could be a huge problem.  

Unfortunately, the BIOS is pretty limited; RAM timing adjustments are definitely not included. If I can't find anything with the same timing, am I a bit S.O.L.? I specifically bought this laptop instead of others because of the user replaceable RAM as I thought I would be able to upgrade it down the road.

Link to post
Share on other sites
Posted

According to other users online, the laptop is quite flexible, and can support SO-DIMM DDR4-2400 with a range of latencies / timings.

 

Heck, Crucial recommends DDR4-2400 RAM with CAS 17 timings...

https://www.crucial.com/usa/en/compatible-upgrade-for/LG-Electronics/lg-gram-13z980

AMD Ryzen 9000 Rig

  • AMD R7 9800X3D + Alphacool CORE 1 w/ Performance Mount Kit + Thermal Grizzly AM5 Contact Frame
  • Gigabyte X870E Aorus Pro Ice
  • 32GB (16GB X2) G.Skill Trident Z5 Neo RGB DDR5-6400
  • Sapphire NITRO+ 6800 XT Special Edition + EKwb Full Cover Block
  • Custom Loop w/ 2x 360mm Radiators
  • WD SN850X + WD SN750 + Samsung 980
  • EVGA P2 850W + Red/White CableMod Cables
  • Lian-Li O11 Dynamic EVO XL

AMD Ryzen 5000 Rig

  • AMD R7-5800X
  • Gigabyte B550 Aorus Pro AC
  • 32GB (16GB X 2) Crucial Ballistix RGB DDR4-3600
  • Gigabyte Vision RTX 3060 Ti OC
  • EKwb D-RGB 360mm AIO
  • Intel 660p NVMe 1TB + Crucial MX500 1TB + WD Black 1TB HDD
  • EVGA P2 850W + White CableMod cables
  • Lian-Li LanCool II Mesh - White

Intel i7-8086K / Z390 Rig (Decommissioned Q2' 2025)

Intel i7-6800K / X99 Rig (Officially Decommissioned, Dead CPU returned to Intel)
Intel i5-4690K / Z97 Rig (Decommissioned)

AMD FX-8350 / 990FX Rig (Decommissioned)

AMD Phenom II X6 1090T / 890FX Rig (Decommissioned)

 

<> Electrical Engineer , B.Eng <>

<> Electronics & Computer Engineering Technologist (Diploma + Advanced Diploma) <>

<> Electronics Engineering Technician for the Canadian Department of National Defence <>

Link to post
Share on other sites
  • 2 weeks later...
Posted
  • Author
On 3/31/2019 at 12:57 AM, -rascal- said:

According to other users online, the laptop is quite flexible, and can support SO-DIMM DDR4-2400 with a range of latencies / timings.

 

Heck, Crucial recommends DDR4-2400 RAM with CAS 17 timings...

https://www.crucial.com/usa/en/compatible-upgrade-for/LG-Electronics/lg-gram-13z980

Thanks, Rascal. I took that advice and just went for it. There was a sale on a 16 GB stick of G Skill ram with CAS 16 timings, and everything is running nice and smooth.

 

So confirmed, 13-inch LG Gram 13Z980 does seem to work fine with mixed timing RAM.

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing CPUs, Motherboards, and Memory

×