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Originally Posted by dandelioneater for your second problem, the setting in the bios that reduces the speed of the cpu when it is idle is called speedstep i think. When you are overclocking, you should really disable speedstep, C1E, and a few of the other power saving features. |
not rly on SB, I have my 2500k overclocked with speed step enabled (makes it use much less power while idle and makes ur CPU live longer). All you gotta do is set the boost clock in the bios to the speed you want and then set a voltage offset to get the voltage you want while in boost state.
I get 1600mhz when idle at 1.064v but as soon as I do anything, it jumps up to 4.8ghz with 1.400v. I'm getting about 65-70C with a Hyper212+ in a small form factor case with the fans set to about 1000rpm while running prime. It's also 24hours prime stable and 20runs of maximum intel burn test (maximum on a 16gb system) stable.
To answer source255's 2nd question/problem, that is perfectly normal for the frequency to vary depending on your load. it's intel speed step simply making the most out of ur chip, while letting it breath when it's not doing much.
As for the first problem, if I understand correctly what you are saying, it seems like the overclock you are setting is simply not even stable enough to boot, so the bios is simply restoring default setting in order to avoid you the hassle to have to do this manually (most if not all bios have such a system built in nowadays).