Originally Posted by starsd
Okay heres my 1st Overclock.
I was told by using 8 x multiplier instead of 9 x, CPU uses less Power for V Core thus lower Temp. True ?
My memory is rated DDR 2 800 and I want to take advantage of it.
How far can I raise FSB on these E 4300 ?
Your suggestions to push it further welcome.
I don't think CPUs have FSB walls per se, rather an overall operational frequency that increases as vCORE increases but only to a certain point. In other words 450x8 and 400x9 are the exact same thing, and if the chip will no longer boot into windows/post you've hit an overall frequency wall that can only be busted down with more vCORE.
In terms of x8 multi requiring less vCORE that would only be true given 8x333 is a lower OC than 9x333.
You can raise your fsb as high as your mobo will allow, unfortunately there are FSB "holes" due to strap changes and getting stable btween 350-399 may be difficult. Thats why I liked the P965 chipset boards that only sported a max 1066 strap(quadgt, dfi p965, new P5B plus?).
Overall I would say the FSB is not saturated(@1333+), and going for a higher FSB is moot(ie 450x8 = 400x9). So try going for 340x9 since clearly your mobo will allow a 340 FSB.
If you want to take advantage of your memory just use dividers or multipliers whichever your board uses. the 4-4-4-X timings seem to really be the sweet spot with this chipset see if you can tighten them down just a little.
Personally I never had much luck dropping the multi, my system didn't seem to like it for some reason. Even 266x8 acted squirrelly. But it seems the DS3 boards respond well to a multi drop, so see if you can post or better yet boot into windows with say 400x8 and if not adjust voltages accordingly.
Maybe make mch: +2/3 to accomodate the higher FSB.