adding extra memory

[jonph]

Hi folks,
I have 2x 1gb crucial ballistix pc3200 ddr400 mem on my asus a8n-sli deluxe mobo and was wanting to add 2 more 1gb sticks.
problem is I can't find any matching ballistix ddr memory anywhere.
My question is, can I add any ddr pc3200 ram with the ballistix, or would I be better installing 4 new 1gb sticks?
If I can mix and match,any recomendations?

 

[jonph]

Do memory timings have to match, or will they run at whichever as the lowest timings? Oops didn't read above fully,
thanks for quick reply. I'll have a look see whats available.