4gb ram with 2gb ram ... will it creat problem ??

[palit]

My pc contains only 4gb ddr3 ram on 2+2 on two different slots & I want to upgrade it to 2+4=6GB . So there will be 2gb in one slot and 4 gb in another slot . Will there be any problem because of the two different memory (I will buy the same frequency & same manufacturer ram ) . So one slot will contain 2gb and another slot will be contain 4gb will there be any problem on system due to the different memory size.
My systm spec:
Mobo - asus m5a78l-mlx
Processor - amd phenom II X4 840
4gb ddr3 ram
Graphics - sapphire 7750 1gb ddr5

Plz help me plz plz ,,. .. .

 

[AddRAM]

There won`t be any problems

You don`t have to get the same manufacturer, but if you can that`s good too.

Then get another 4 GB stick as soon as you can and you`ll be set on that board.

What speed do you intend to get ?

http://www.asus.com/us/Motherboards/M5A78LM_LX/specifications/

Memory
2 x DIMM, Max. 8GB, DDR3 1866(O.C.)/1600(O.C.)/1333/1066 MHz ECC, Non-ECC, Un-buffered Memory
Dual Channel Memory Architecture
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
* Due to OS limitation, when installing total memory of 4GB capacity or more, Windows® 32-bit operation system may only recognize less than 3GB. Install a 64-bit Windows® OS when you want to install 4GB or more memory on the motherboard.
* AMD FX Series CPU on this motherboard supports up to DDR3 1866MHz as its standard memory frequency.
* AMD AM3 100 and 200 series CPU support up to DDR3 1066MHz.

 

[LMiller7]

In theory any combination of compatible RAM modules should work. But things don't always work that way in the real world. Any mismatch is specs or even manufacturer can cause problems. This isn't a common problem but it does happen. The only way to know for sure is to try it.

 

[Digerati]

In theory any combination of compatible RAM modules should work. But things don't always work that way in the real world. Any mismatch is specs or even manufacturer can cause problems. This isn't a common problem but it does happen. The only way to know for sure is to try it.

I agree with this, but to take advantage of the motherboard's dual channel memory capability, the RAM should be installed in "matched" pairs.

But also note it is often best (for performance, though not necessarily your budget) to simply retire your old, smaller capacity and potentially slower RAM and replace all your RAM with new, larger and faster RAM sticks. If you ask anyone who's been self-supporting computers for awhile, you likely will find they all have a box full of perfectly good, but old, slow, and smaller capacity RAM sticks that have been replaced during upgrades.