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niku
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1,435 Posts
Discussion Starter #1
I bought a new HP laptop and I'm confused about which ram would fit in this for an upgrade.
I want to upgrade it to 8GB.

As per CPU-Z
the current RAM is a Samsung DDR4-2666 module running at 1333Mhz




I am not sure how is the pc running this RAM? Has HP Put the wrong RAM in this pc?


The CPU installed is an i3 7100U




As per the specs, the unit only supports DDR4-2133 in Dual Channel.


Can you guys help me figure out this mishap of a configuration

Should I go buy a new 4GB DDR4-2666 Module to make it a total of 8GB
OR
Remove the current ram and install a single 8GB DDR4-2133 Module.

By Any chance am I reading this table incorrectly?
 

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deep-space demon
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349 Posts
Should I go buy a new 4GB DDR4-2666 Module to make it a total of 8GB
OR
Remove the current ram and install a single 8GB DDR4-2133 Module.
Yes, as you said: Remove the current ram and install a single 8GB DDR4-2133 Module

The memory has to be identical ie the size and frequencies has to be the same, so you must buy the same stick of memory that was preinstalled. Otherwise you run into problems with memory timings being mismatched etc and you don't want to invite a whole bunch of issues along with that.
Replacing the memory outright gets around this problem.
 

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niku
Joined
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1,435 Posts
Discussion Starter #3
Yes, as you said: Remove the current ram and install a single 8GB DDR4-2133 Module

The memory has to be identical ie the size and frequencies has to be the same, so you must buy the same stick of memory that was preinstalled. Otherwise you run into problems with memory timings being mismatched etc and you don't want to invite a whole bunch of issues along with that.
Replacing the memory outright gets around this problem.
Also, I did a little bit of research and found that my current factory shipped RAM (DDR4-2666) is running at a speed of 1066Mhz CL 15 which is the speed of a DDR4-2133 RAM which runs at 1066Mhz CL15.
As per ARK website, i3 7100U supports only 2133 RAM.
So my new HP Laptop is actually downclocking my factory installed RAM.
I'm worried that this PC may fail prematurely.
Is HP doing this on purpose?
 
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