Originally Posted by
unclewebb
I've been comparing the Intel datasheets today for the E6000 vs E8000.
As previously mentioned, the FSB Termination voltage has dropped from a recommended 1.20 volts +/- 5% to 1.10 volts +/- 5% with the switch to 45nm.
The E6000 had an absolute maximum voltage of 1.55 volts but the maximum VID was 1.50 volts. When operating between 1.50 and 1.55 volts you were in that gray area where "neither functionality nor long-term reliability can be expected."
With the E8000 the absolute maximum has dropped 0.10 volts to 1.45 volts but the maximum VID has dropped even further down to only 1.3625 volts. This implies that the new gray area for the 45nm cpus is from 1.3625 to 1.450 volts where "neither functionality nor long-term reliability can be expected."
It might be excessive FSB Termination voltage that is degrading some of the new 45nm chips or it might be good old excessive CPU voltage. Most XS overclockers would not consider 1.3625 volts to be excessive but it's possible that even one run above 1.3625 volts was enough to degrade the performance and long-term reliability of your chip.
)... for 45nm procs - VCore 1.3625 to 1.450 & VTT 1.10 volts +/- 5%...?
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