Memory in Aspire V5-122P-0889

How is it that the laptop has 4 GB of memory, including 3526 MB usable, when there wasn't that one module of memory Kingston 2 GB installed?  The motherboard is equipped with a built-in 2 GB module, and everything you put in the single RAM slot is in addition to the built in memory?  My laptop is no longe under warranty, so when I installed an SSD I removed the module and he got the info from her.  It is a module of Kingston, model # ACR16D3LS1NGG / 2G, which is clearly a 2G module.  Same cpu - z indicates the module as being 2048 mb.  The kicker is that in cpu - z, on the memory tab, the size la taille shows only 3526 MB.  In the SPD tab, it shows only the 1 full size 2048 MB module slot.  Nothing in slot 2.  Belarc Advisor, it shows DIMM 0 as with 2048MB installed, with a serial number and 1 DIMM with 2048 MB installed, but no serial number.  The serial number for the DIMM 0 is for the module of Kingston.  Can anyone understand this?  As I said, it is that a single slot on the motherboard for a module and the module that it is 2 GB.  In all my other PCs in the past, the memory that is displayed is what you have installed.  But this laptop has a ghost somewhere 2 GB module.  I'm sure that there is a logical explanation for this, and I'm sure that the laptop was actually 4GB (usable 3.52), but where the other 2 GB coming if the module installed, and why is not Belarc shows a second module that is not physically there?  Thanks in advance.

I'm not familiar with your machine, but I think there:

A location that can be supported up to 4 GB.

(There is another 2 GB of RAM (DDR3-1066) soldered to the motherboard. It cannot be changed).

Tags: Acer

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