|"any suggestions on boosting the CPU closer to 2.8 or |
When you overclocked to 2.5GHz, why did you lower the CPU multiplier from 11.5x to 10x?
I suggest you shoot for 2.875GHz (11.5 x 250MHz). To do that, start with the old overclock settings --- the CPU freq at 250MHz, CPU multi at 10x, HT multi at 4x. Lower the memory setting to DDR 667. Make sure CnQ is disabled (which you already have) & disable all Spread Spectrum options. Lock the PCIe at 100MHz.
According to CPUZ, you have the CPU voltage at 1.328v. AMD spec's the voltage range for your X4 at 1.0v-1.25v, so I assume you must have jacked it up? Did you experiment with other settings between 1.25v - 1.328v & find that 1.328v was necessary to stabilize the overclock? Or did you arbitrarily pick that amount?
Anyhow, once you've setup the BIOS using your old settings & confirm that they work, go back into the BIOS & raise the CPU multi from 10x to 10.5x (2.625GHz) & see what happens. If it's stable, go back again & raise it to 11x (2.75GHz). Try again at 11.5x (2.875GHz).
Below is a chart of Phenom memory dividers. You'll see that with the CPU freq at 250MHz & the memory set to 667MHz, the memory will actually run at 833MHz.
If you want to increase the CPU freq higher than 250MHz, you'll have to lower the memory setting to 533MHz.