Using different ram capacity on a laptop along with stock ram

I have a alienware 15 r3 and would like to upgrade the ram, Can i find a 16gb stick with the same specs and add that to the single channel of 8gb that is already in it? Ive done this without caring in older machines but never on a newer gaming laptop. if i can get a general okay from the community Id open up the laptop and find the exact model of ram unless a windows utility can find the rams model and brand and then see if theres a very similar stick but in a 16gb form. If this will be a pain or potentially full of issues then id imagine a 16gb kit is the next best option.

bro67 said:

https://www.crucial.com/usa/en/compa...lienware-15-r3

Saw crucial, seems like they would be a good brand but their page doesn't say anything about adding it to a preexisting 8gb.

Rammon by Passmark:
PassMark RAMMon - Identify RAM type, speed & memory timings



And yes, you can have different capacities.

Synchronous vs. asynchronous Dual Channel - You Want 4 GB RAM on Your Notebook?

bro67 said:

https://www.crucial.com/usa/en/compa...lienware-15-r3

Saw crucial, seems like they would be a good brand but their page doesn't say anything about adding it to a preexisting 8gb.

bro67 said:

wmic memorychip list full in cmd.exe will also give you full details without some third party software. Same as msconfig system report.

And then Google the part number returned:

Code:

C:\Windows\system32>wmic memorychip list full


BankLabel=BANK 0
Capacity=17179869184
DataWidth=64
Description=Physical Memory
DeviceLocator=DIMM A
FormFactor=12
HotSwappable=
InstallDate=
InterleaveDataDepth=1
InterleavePosition=1
Manufacturer=802C0000802C
MemoryType=0
Model=
Name=Physical Memory
OtherIdentifyingInfo=
PartNumber=16ATF2G64HZ-2G3H1
PositionInRow=1
PoweredOn=
Removable=
Replaceable=
SerialNumber=186ABE3F
SKU=
Speed=2400
Status=
Tag=Physical Memory 0
TotalWidth=64
TypeDetail=16512
Version=


BankLabel=BANK 2
Capacity=17179869184
DataWidth=64
Description=Physical Memory
DeviceLocator=DIMM B
FormFactor=12
HotSwappable=
InstallDate=
InterleaveDataDepth=1
InterleavePosition=2
Manufacturer=80AD000080AD
MemoryType=0
Model=
Name=Physical Memory
OtherIdentifyingInfo=
PartNumber=HMA82GS6MFR8N-TF
PositionInRow=1
PoweredOn=
Removable=
Replaceable=
SerialNumber=81269760
SKU=
Speed=2133
Status=
Tag=Physical Memory 1
TotalWidth=64
TypeDetail=16512
Version=