Installing dissimilar ram

[avtechq07]

I currently have an old local 4 gb ddr3 ram installed on my pc which runs at 1333mhz
I want to upgrade the ram to 8gb by adding 4gb stick to the system.
Is there any problem of doing that or is there any
criteria for matching ram
can i install any 4 gb ram stick with current one without issues

 

[qazwsx27]

It should work. If you buy a 1600mhz stick, the motherboard will run both at 1333mhz. Just make sure you can return it to the store just in case. I have different dimms in my computer with no problem.

 

[DonkeyOatie]

In general, the computer defaults to the lowest specification RAM installed if all are not identically configured. So match as best you can, but it will work (very likely)