2nd Noob question of the day, DDR Pairing

[eyemessiah]

I have a 2 x 512mb Gskill 4400 pair in my DFI NF4 right now.

With RAM being crazy cheap now I'm thinking of putting in another gig or two. Probably 2 5300s.

Will I lose the dual channel 'bonus' if I don't put in another 2 of the same chips? Will I lose it just for having more than 2 chips? Can I still get it if the other pair match, but the pairs themselves don't match? Can I freely mix the chip sizes?

Am I overthinking it?

Many thanks,

 

[eyemessiah]

Ah, so I suppose 4200 is my next best bet then...

Will I be at much of a disadvantage with non-DD2 in the future?

(I'm considering if its worth-while upgrading my 939.)

thanks,

 

[eyemessiah]

Hrmm...

There is actually a 2x 512 Gskill 4400 kit just like mine on Ebay (the only 4400 on there) but its £60!

Not such a nice deal!

(Except in terms of what I paid for them in the first place!)