I am currently running some G Skill pc1066 memory, and according to G. SKill it will run at 1066 at latency settings 5-5-5-15 at 2.1v. I am currently running the memory at 4-4-4-12 800 with 2.0v w/o any problems.
Is it worth my time to bump up to 1066 and increase latency?
As mentioned in the other thread - I picked the 4-4-4-10 16 because those are the numbers in the SPD for 533 MHz setting. Seemed logical that if it could run 533 at those, then might run 800. It tests out fine.
You might try the same thing, look at your SPD with CPUz and set it to the 267/533 setting. But the difference in Cycle Time of 2 clock ticks? Makes no difference. Note that bilbat has the same RAM as you do and runs it at the same specs as you are now.
I doubt your RAM needs more than 2.0V unless you run at 1066 or add more modules.