Quote:
Intel® Core™2 Extreme Processor QX9000 Series and Intel® Core™2 Quad Processor Q9000 Series Datasheet (Document Number: 318726-003) was first published in March 2008. Section 2, Electrical Specifications, Subsection 2.6, Voltage and Current Specifications, Table 2-2, titled Absolute Minimum and Maximum Ratings, specifies absolute maximum and minimum ratings for this series of processors. It’s important to note that these values lie outside the functional limits of these processors (i.e. they may not be indicative of warranted operating voltages but are rather intended to serve as warning to those that would run their processors above rated specifications).
Table 2-2 shows maximum voltages for both VTT (FSB Termination Voltage) and VCC (Vcore) with respect to VSS (the processor power ground plane voltage, a.k.a. “ground”). In this case they happen to be equal in magnitude – 1.45V. If anything, this suggests that the use of high VTT voltages can be potentially as damaging, if not more so, than the sustained application of Vcore voltages above this same voltage yet many users continue to operate under the assumption that excessive VTT voltages should be less concerning than higher Vcore voltages.
i dunno, you may disagree, but kinda makes 1.64 vtt seem kinda scary...similar to high pll