Hi. Just got my Crucial Ballistix in last night... I'm in Vista x86 and bought 4x1 to replace 2x1 Dominators (which no longer have the Micron D9 IC, so I couldn't just add another two of them). I started to mess with them today on my lunch break.
I start with:
810MHz 5-5-5-15-2T 2.2v - This works fine.
Then I get this inkling that I want to find a way to run 1T (I could with my Dominators, but that's only 2x1GB).
810MHz 4-4-4-12-1T 2.3v - No POST, so I figure to scale back the speed all the way to a 1:1...
540MHz 4-4-4-12-1T 2.25v - POST and my Vista score goes up to 5.8 from 5.7 (no time to benchmark... come on; it's my lunch break). So, I get excited and curious. I know I can't get 1T with over 800, so I start OCing the speed...
1080MHz 4-4-4-12-2T 2.2v - No POST
1080MHz 5-5-5-15-2T 2.2v - POST, but BSOD loading Windows
1080MHz 5-5-5-15-2T 2.3v - POST, but BSOD loading Windows
1080MHz 5-5-5-15-2T 2.35v - POST, but BSOD loading Windows
So, right now I'm back to 810MHz 4-4-4-12-2T 2.25v. This also gives me 5.8 score.
The moral of the story is 4x1GB is finicky in Vista, sure... but I can certainly live with 2T at 810. BTW, What's going on with the Windows score? 540 1T = 810 2T? Does the command rate matter THAT much, or does it just have a weird way of scoring? I don't intend to do performance benchmarks until after I install x64 this weekend, so I guess I might end up answering that one on my own.