High memory voltage on Phenom...

[AlabamaCajun]

Voltage leads, current follows. When you increase voltage, more current is pulled through. If the VDimm is higher than the IMC then the IMC has to sink more current to create the zeros on the Address and Data lines. The term "sink" I use to definite to pull down as from high about 2.1v (Logic 1) to low at around 0.25V. ( Logic 0 ) The source in this case is a bank of resistors feeding power into the A and D lines.

Lets say the resistors are 560 ohms using ohms load we take Volts / Ohms = Amps
2.0V / 560 = 3.57 Miliamps.
2.1V / 560 = 3.75 Miliamps.
2.2V / 560 = 3.93 Miliamps.
2.3v / 560 = 4.11 Miliamps.

You can see as the voltage is rising so if the amount of current the IMC has to pull to get a zero on the line.