It is currently Sat May 11, 2024 2:10 pm
xoqolatl wrote:CPU core frequency is derived from FSB by a multiplier: default speed for Q6600 is FSB 266 * multiplier 9 = 2400MHz. RAM speed is derived from FSB by a RAM divider; divider is a proportion of FSB to RAM clock (we are talking about real clock here, not DDR; DDR is effective frequency and means that memory makes two transfers in one clock cycle). So with FSB=266, running a 1:1 divider gives you DDR-533, 3:4 is DDR-710, 4:5 is DDR-667, 2:3 is DDR-800, 1:2 is DDR-1066. Normally, motherboard choses the divider based on SPD readings - SPD is a kind of memory present on every memory stick that holds typical usage info: rated speed, voltage and timings. If you put a DDR-1066 (PC2-8500) kit and a Q6600, it will run at 1:2 divider. However, when overclocking, you wil ahve to choose divider by yourself, because if you increase FSB to 400 while running a 1:2 divider, it would demand DDR-1600 speeds from your memory - no DDR2 can work at that speed. To get best performance, you will have to choose best divider and timings for your FSB. For example, lets say you push FSB to 350, thats 350*9=3150MHz on CPU. You can run your memory at 4:5 divider for DDR-875 with CL4, or 3:4 divider for DDR-933 - but you might have to loosen timings to be able to clock your RAM higher.)
rb_lestr wrote:Will it require alot of tweaking and testing before you get a nice sturdy result?
xoqolatl wrote:You're mad!
But seriously now:
Though it would be MUCH better with a Q6600 instead of E8200.
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