Pairing RAM with one that is soldered on the motherboard

manuntd7

Honorable
May 22, 2012
18
2
10,510
Hey guys,

My laptop is the ASUS F556UA-UH71, and its motherboard number is the X556UAK. It has 8GB of RAM soldered on the motherboard itself with the following specs: DDR4 2400MHz, timing: 15-15-15-35. Mind you, even though it's rated at 2400MHz, it runs at 2133MHz due to the processor, which doesn't support frequencies higher than that (i7-7500U). There is an expansion slot and I wanted to expand it to 16GB, not only because of the work that I do and some light gaming, but also to experience the performance benefits of a dual channel setup.

So I did some research to find compatible RAM sticks. If I go with a 2400MHz stick, the best timing that I could find is 16-16-16-39. So my best bet is to go with a 2133MHz, and the best timing on those are 15-15-15-36. Actually, there aren't too many options available for me, the only two that I can choose are the G.SKILL Ripjaws F4-2133C15S-8GRS or Corsair Value Select

My question is, will I run into problems by installing one of these sticks, due the different, but similar timings compared to the one that's soldered on the motherboard? Will the difference in frequencies cause problems, even though the 7500U doesn't support higher frequencies than 2133MHz and the one on the motherboard is rated at 2400MHz?
 

manuntd7

Honorable
May 22, 2012
18
2
10,510


In that case, wouldn't you recommend a better stick, like this G.SKILL Ripjaws? CAS latency is better on that stick, rather than that of the Crucial. Also, what do you mean by timings will tighten?

Edit: If I go with 2400MHz, I also have this option: Team T-Force Vulcan. So for 2400MHz, it's either 15-17-17-35, 16-16-16-39, or CAS17 for the Crucial
 
May 5, 2020
8
0
10
Hey guys,

My laptop is the ASUS F556UA-UH71, and its motherboard number is the X556UAK. It has 8GB of RAM soldered on the motherboard itself with the following specs: DDR4 2400MHz, timing: 15-15-15-35. Mind you, even though it's rated at 2400MHz, it runs at 2133MHz due to the processor, which doesn't support frequencies higher than that (i7-7500U). There is an expansion slot and I wanted to expand it to 16GB, not only because of the work that I do and some light gaming, but also to experience the performance benefits of a dual channel setup.

So I did some research to find compatible RAM sticks. If I go with a 2400MHz stick, the best timing that I could find is 16-16-16-39. So my best bet is to go with a 2133MHz, and the best timing on those are 15-15-15-36. Actually, there aren't too many options available for me, the only two that I can choose are the G.SKILL Ripjaws F4-2133C15S-8GRS or Corsair Value Select

My question is, will I run into problems by installing one of these sticks, due the different, but similar timings compared to the one that's soldered on the motherboard? Will the difference in frequencies cause problems, even though the 7500U doesn't support higher frequencies than 2133MHz and the one on the motherboard is rated at 2400MHz?
Hello My friend, hope you doing well.
I would like if you can help me with something similar to your old Question.
i have a laptop that has 4gb RAM soldered in systemboard or built-in motherboard. It has a one free slot for RAM upgrade, but i couldn’t figure out the specs of the soldered in systemBoard RAM so that i can buy a RAM with similar specs. I even contacted laptop manufacturer and used third party programs to determine the specs of the built-in RAM but none of them gave me specs of my soldered in systemboard RAM.
Hope you can help me with this.
Thanks
 

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