negev
08-09-2008, 09:47 AM
I'm curious about the vdroop compensation on the blackops. If I understand vdroop correctly, it exists as a kind of safety feature, because if the input voltage to the CPU was kept constant at 1.2v, going from 100% load (eg 100A) to idle would cause a momentary spike in voltage due to the voltage regulation needing a brief moment to adjust to the sudden lower power draw.
Does anyone have any data on how the blackops board handles vdroop compensation? I'm reluctant to use it without seeing evidence that it won't cause vcore spikes when going from 100% load to idle. If anyone has an example graph of vcore voltage measured with something accurate like an oscilloscope, with vcore at say 1.4v with vdroop compensation enabled and the processor going from idle to max load and back to idle please post it here :)
Does anyone have any data on how the blackops board handles vdroop compensation? I'm reluctant to use it without seeing evidence that it won't cause vcore spikes when going from 100% load to idle. If anyone has an example graph of vcore voltage measured with something accurate like an oscilloscope, with vcore at say 1.4v with vdroop compensation enabled and the processor going from idle to max load and back to idle please post it here :)