I've just bought some new RAM

[SlyReaper]

I've just ordered 2 1GB sticks of the GeIL PC2-6400 RAM with the nice juicy timings of 4-4-4-12. I already have 2 1GB sticks of Kingston PC2-5300 with the not-so-juicy timings of 5-5-5-15. My question is this:

Should I just stick the new RAM in together with the old stuff and run 4GB at PC2-5300 speed and 5-5-5-15 timings? Or should I simply replace the old RAM with new, thus running 2GB at PC2-6400 speed and 4-4-4-12 timings? Which would yield the greatest performance?

I'm running XP 32-bit, so I'd only be able to make use of (I think) 3.2GB of RAM even if I did use the two types together. The rest of my spec is in my sig.

 

[gareth170]

it isn't a good idea to use two types together. if u want 4GB i would say get another set of the GeIL PC2-6400 RAM. but if u really wanna use the two types together you'll need to run the ram at 667mhz 5-5-5-15. but be aware it doesn't always work using the two types of ram together

 

[SlyReaper]

OK that's pretty much what I suspected. Thanks. This is just a cheap temporary thing anyway until I can afford some DDR3.