- Aug 2, 2008
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I have an i7 860 on a Gigabyte P55A-UD3 motherboard. It was clocked at 145Mhz BCLK which gave it a speed of 3190Mhz with 4 cores and up to 3770Mhz with only one core thanks to Turbo boost. Speedstep would kick in quickly when the computer was idle and bring the multiplier down to 9x and the core speed down to 1305Mhz. The voltage stayed between 0.86V and 1.22V.
I recently raised the Memory multiplier from 10x (1450Mhz) to 12x (1740Mhz). With this change, speedstep stopped working. The processor would sit at 3190Mhz all the time. The voltage was always at 1.22V. So I went back to the bios. There is no "Speedstep option in my bios, so I decided to try to enable "C3/C6/C7 state" since this sounded similar. The result of this was that the core clock stayed at it's max between 3190Mhz and 3770Mhz, but the core was almost always at 0.86V.
CPU-Z, PC Wizard, and Everest have all reported the high clock speed, low voltage, and low temperatures. Is this possibly correct? How can the speeds go up, but the voltages and temperatures go down?
I recently raised the Memory multiplier from 10x (1450Mhz) to 12x (1740Mhz). With this change, speedstep stopped working. The processor would sit at 3190Mhz all the time. The voltage was always at 1.22V. So I went back to the bios. There is no "Speedstep option in my bios, so I decided to try to enable "C3/C6/C7 state" since this sounded similar. The result of this was that the core clock stayed at it's max between 3190Mhz and 3770Mhz, but the core was almost always at 0.86V.
CPU-Z, PC Wizard, and Everest have all reported the high clock speed, low voltage, and low temperatures. Is this possibly correct? How can the speeds go up, but the voltages and temperatures go down?
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