F3-12800CL9D-4GBRL compatible with F3-12800CL9D-8GBRL

[fatboyjim]

Hi,

I currently have F3-12800CL9D-4GBRL 4GB ram with Asus P7P55D-E LX motherboard.
Can I add F3-12800CL9D-8GBRL 8GB ram to it?
Are these 2 sets of RAM compatible with each other?

Thanks.

Jimmy

[Tradesman]

Any time you mix sets it can be problematic, XMP won't work so will have to set up manually

[RADITZ]

How about mix the other sets of F3-12800CL9D-4GBRL 4GB?
Its two sets 4GB with 'the same thing' inside.
Will it works?

[Catscratch]

The only problem is the ram quantity on each channel. I'm not sure it'll be reliable to use 2x2gb + 2x4gb.

[Tradesman]

Even of the same exact model, it can be problematic, I'm not saying it WON'T WORK, but saying that it might not, if possible a single set is best. If you want to give it a try, I'll be happy to help, normally 1600 and lower people can have good success getting them to play together, it will take manual setup prob and involve voltages and timings - sorry can't be more exact, but don't want to say "Sure no problem" if there's a chance you might end up having to RMA, I wouldn't treat my clients like that and I know GSkill wouldn't either.

[RADITZ]

Okay.
So the best way is just "a set".

Thank you.
Regards.

[Tradesman]

Yes, I'd suggest a single packaged set for ease and probability of success