I have checked for about 45mins this morning to see if I could find the answer on my own about FSB settings for ddr2 1066 with a e8400 but I was unable to locate anything about this combo. (I'm sure there has to be somewhere though so I'm sorry if I over looked it)
Currently I have 4gigs of ddr2 pc-6400 @ 420 (840 fsb) and my e8400 @ 420. so a 1:1 ratio.
I found a great deal on the newer ddr2 1066 and thought I would try OC'ing the chip a little more since the fsb on the RAM would no longer be the bottle neck.
Unfortunately I have no idea what the settings should be for this to work as a 1:1 or if that is even possible. My tech level is pretty advanced but Im not realy experienced with overclocking so any help would be great.
The ram speed the manufacturer gives is what they are guaranteeing the stick will do. As long as it is stable is all that really matters. You can adjust the multiplier if you want to run the ram at a faster speed than what 1:1 will give you. I am not entirely sure what you are asking though.
Don't set the ram voltage any higher than 2.2 volts. What is the cpu voltage at? What multiplier are you using? 800mhz ram is generally better for overclocking the e8400. You may see a bigger difference if you set the both the cpu FSB and ram to a lower amount, but also lower the timings on the ram. What are the timings at right now?
That ram has a very high stock voltage, so you may not be able to tighten the timings much. Before trying to max it out, try running the cpu at 420x9(~3.8ghz) and see if it's stable. Personally, I would rather run it at 3.6ghz and lower the memory timings than try to max out the memory.
Get either 2 or 4gbs of DDR2 800ram. Make sure it has low timings (4-4-4-12) and preferably low voltage (<2.1v) as well. This way, you won't have to go in and change the timings yourself. If you find some ram on whatever website you shop at, post a link and we'll tell you if it's good.