memory modules

hello

If I have 2x1Gb memory of one brand, can I ad another 2x1Gb of another brand and still can use the dual channel? or does the 4 stiks have to be the same brand?

thanks

Yes they will work BUT the memory timings will be at the slower pair. If you have a set with a timing of 4-4-4-15 and add a pair of 5-5-5-18. They will both run at 5-5-5-18.

As long as they are the same size you will be fine. They will work in dual channel.

I have a Dell XPS that has 2 Gig of PQI memory and 2 Gig of Micron running in dual channel just fine. The PQI is DDR2-667 and the Micron is DDR2-533 and they all run at 533.

To get the best performance get the same speed RAM.

1Haplo