Not sure if this RAM is compatible with my notebook

R

Rinart73

New Member
I'm not great with hardware, this is my first time upgrading RAM.
My notebook is Asus VivoBook X556UR. It seems to have 1 slot soldered (4GB in my case) and 1 free slot.
From what I gathered the soldered RAM is MTA8ATF51264HZ-2G1 with 2133 MHz and CL15.
The CPU is i5-6200U and it seems that max supported RAM speed is 2133 MHz.
In my local store the only 8GB choices are:
  • Kingston KVR32S22S8/8 with 3200MHz and CL22
  • Patriot PSD48G266681S with 2666MHz and CL19
If I understand correctly the CPU should just force any of these two to use 2133MHz frequency and they should work just fine?
But because of CL, it would be better to choose Patriot because the latency will be lower and close to the soldered RAM latency.
I've read that mixing RAM from 2 different companies and with different latencies is not a great idea but I don't have much choice here.
 
beers

beers

Moderator
Staff member
Either one will have to downclock both speed and timings to match the soldered speed, I'd just pick the least expensive one.

That's one of the reasons soldered RAM is a terrible concept, but not really anything you can do having already owned it.

You might be better off ordering one online.
 
R

Rinart73

New Member
johnb35 said:
See if any of those model numbers is available near you. I would definitely try to get CL15 ram.
Click to expand...
Don't have much in terms of good hardware stores nearby but I found Kingston Fury Impact KF426S15IB/8 - DDR4, 2666MHz, CL15. Seems good enough? I definetely can't find any 2133 MHz RAM.
 
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