Mix and match RAM? Anything wrong with asymmetrical 13GB memory?

13GBofRAM

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Oct 24, 2014
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I recently ordered a new Acer laptop with 4 RAM slots. The laptop shipped with two 8GB DDR3L RAM DIMMS and two empty RAM slots. The laptop also has Windows 8 and an Intel i7 4712MQ quad core processor, so if I understand correctly the machine should be able to use more than 8GB RAM. As leftovers from other computers, I have one 4GB and one 1GB RAM DIMMs (sticks? not sure I am using this term correctly.)

My question for you fine folks is: What are my upgrade opportunities regarding this leftover RAM? Can I simply add the 4GB and 1GB DIMMs into the new laptop alongside the existing (2x) 4GB DIMMs? I have tried to research the issue and it appears there can be hiccups with asymmetrical RAM placement, and examples of computers with odd-numbered RAM amounts seem few and far between.

If the precise technical specifications of the leftover RAM is important I can find that out later today. Thanks for any help you can provide.
 
Solution
It is always a crapshoot to deal with mixed RAMs. might work or not at all. About asymmetrical RAM memory, my laptop has 3 GB RAM (one 2 GB Adata stick and one 1 GB Hynix stick) and works in Dual Channel, but it was TESTED to run so. You can check whether your motherboard supports the speed and memory of those left over sticks. But "will not work" has the most choice to be the result.
It is always a crapshoot to deal with mixed RAMs. might work or not at all. About asymmetrical RAM memory, my laptop has 3 GB RAM (one 2 GB Adata stick and one 1 GB Hynix stick) and works in Dual Channel, but it was TESTED to run so. You can check whether your motherboard supports the speed and memory of those left over sticks. But "will not work" has the most choice to be the result.
 
Solution