You won't see a huge performance difference between 800 and 1066. You can see what you are running at in the BIOS, or using a program like Everest or CPU-Z.
No, unless you're benchmarking. You'll see absolutely no gains in any real-life applications.Is there a noticeable difference in DDR2 800 and DDR2 1066 RAM clocked at the same timings?
Slight OC got my experience to 5.9No, unless you're benchmarking. You'll see absolutely no gains in any real-life applications.
THe SPD tab just shows what the standard voltage and timming of each stick running at that speed. If you click the Memory Tab, that shows what all the sticks are running at together.
They should be at 400 with 555-18 default/ one of the sticks has higher timming 555-18 vs. two at 555-16 at 400mhz. I would try 1.9V at 400mhz with timming set at 555-18. If its stable you could try setting them to a lower timming and maybe play with the voltage alittle.