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I have i7-920 oc'ed to 3.8, 6 Gig and an GTX470 oc'ed to 975 / 800 / 1600.
5 boxing fine on lowest settings.
OCing the i7-920 is v easy mate.
ALL IN BIOS
1. Change AI Overlock Tuner from Auto to Manual.
2. Set CPU multiplier to 20 in CPU Ratio setting.
3. Chnage QPI frequency (Asus calls this 'BCLK Frequency) from 133 to 190 (CPU freq = QPI x CPU multiplier giving 3.8Ghz)
4. Memory will now be set to run too high, so find 'DRAM frequency' and change it to approxiamate its setting (eg if its 1600 set it to 1523 Mhz, dont go over its setting).
5. Raise CPU voltages slightly 'CPU Voltage' to 1.275v and CPU PLL to 1.9v. You may need slightly higher on the CPU but DONT go above 1.45v.
6. DDR3 memory needs 1.65v to run optimally. Set DRAM Bus Voltage to this (may only allow 1.64 or 1.65.
7. Disable 'CPU Spread Spectrum' and 'PCIE Spread Spectrum'.
Note sometimes you hardware may appear to be running at original settings if you run something like CPU-Z - this is a basic power saving feature in some hardware that makes it runner slower when not loaded.
If you don't like playing in BIOS Google something like TurboV for ASUS
Last edited by Flight : 02-21-2011 at 07:17 AM
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