Originally Posted by halifax1
You can't get 4GB in Tri-Channel.
The reason you're probably finding a lot of RAM for P55 is because you were probably searching for 4GB and you can't use 4GB on X58.
Umm... X58 supports dual channel as well.
I'm not sure how much of a difference it will make though. I know performance wise it isn't noticeable, but I'm not sure how it would affect an OC.
If there isn't any effect then you could get a 4GB kit like this:
Then in the unlikely event you actually need the extra memory you could always get another dimm:
Don't trust ASRock. Based on what I've seen I'd say their boards have a 70-80% failure rate within 2 years.