Originally Posted by cybersspot.com
Let me rephrase that, I could put the two different speeds in, but it would not work.
Not true. Only partial.
If you install different speed RAM the RAM ill underclock itself to the slowest speed in the set. so If I have 2 1066 sticks and 2 800 sticks, they will all UC to 800.
I thought it's normally better to use RAM in pairs and to use less spread across 2 sticks, instead of 1 larger stick. I could be wrong though.
This is true and I suggest you buy in sets more than anything.
and finally you can have different sizes as said above.