DDR4 instead of a DDR3L Ram to upgrade laptop? And how much exactly can I upgrade my laptop's RAM to?

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martian.marcera

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Dec 6, 2017
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My laptop is an Asus x456U.
It's Processor is an Intel® Core™ i5 6200U.

When I checked the back of the laptop, I noticed that the default Ram, or the one that came with the laptop, cannot be removed. Soldered, as my friend would call it. The ram seems to be a 4gb DDR3L running at 1600 MHz.

It has an Extra slot tho, a SO-DIMM socket for expansion up to 12 GB SDRAM.

My question is, can I upgrade the laptop with a 4gb DDR4? Since SO-DIMMs as I have read ~can accept DDR4 and Lower Rams. Or did I just misread that meaning? And the Intel® Core™ i5 6200U ~does accept DDR4 sticks.

Also, can I upgrade it with more than a 4gb stick? Since in the specifications, it said that I can expand it with one up to 12gb. I don't know exactly what they mean by that.

I'll just include my laptops webpage so you guys can see.
Thank you for reading and it'll help me a great deal if someone answers.

https://www.asus.com/Laptops/X456UA/specifications/

Where I read the SO-DIMM definition:
http://www.te.com/usa-en/products/connectors/card-socket-connectors/memory-sockets/so-dimm-sockets.html

Intel® Core™ i5 6200U:
https://ark.intel.com/products/88193/Intel-Core-i5-6200U-Processor-3M-Cache-up-to-2_80-GHz
 
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helpstar
usually laptops designed for low voltage RAM won´t boot, but there are some exceptions of course. Your inserted RAM needs 1.5V and the motherboard just provides 1.35V. Like you proofed, in the rare cases it boots, it wouldn´t be recocgnized, because of too less voltage.
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CountMike

CountMike

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In that first link it says:
Memory DDR3L 1600 MHz SDRAM, 1 x SO-DIMM socket for expansion up to 12 GB SDRAM no mention of DDR4 that wouldn't even physically fit because of differnt sizes and number of pins.
About processor: It's IMC (Internal Memory Controller) can handle both, DDR3l and DDR4 but that's not how it was configured in that laptop.
 
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martian.marcera

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Ahh so my best bet would be to buy another 4gb DDR3L Memory Stick? Does it have to be 4gb or can I buy more?
Lastly, we have an extra DDR3 here, would that not work? Or if I test if it could work, would that harm our laptop?
 
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CountMike

CountMike

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Main difference between DDR3 and DDR3L is that later one works at 1.35v while non-L runs at 1.5v. which would put undue stress to the processor and it's IMC and make it heat up more even if it worked but I doubt that BIOS would even let you set it at 1.5v.
Combining RAM soldered on and inserted in the socket, can't exceed 12GB.
 
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helpstar

helpstar

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martian.marcera

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Dec 6, 2017
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Yes, we tried out inserting the Ram to the computer and we were surprised our that our computer booted. I guess we misunderstood what you meant by "It wouldn't even post/boot". The laptop was fine, only the Task Manager and CPU-Z/CPUID didn't show the extra Ram we put in.

Anyway, thanks you for the response.
 
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helpstar

helpstar

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Dec 25, 2012
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usually laptops designed for low voltage RAM won´t boot, but there are some exceptions of course. Your inserted RAM needs 1.5V and the motherboard just provides 1.35V. Like you proofed, in the rare cases it boots, it wouldn´t be recocgnized, because of too less voltage.
 
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