Effectively undervolting E5200 - how?
Posted: Wed Dec 07, 2011 5:56 am
Hola,
I have a server (E5200 + GA-G41M-ES2L + 2 HDDs) – naturally in this case, speed is much less important than power consumption. So I thought it would be a good idea to toy around voltages: I whipped out my cheap power consumption meter, and entered the BIOS.
I found very little usable info on how to effectively do this, so what I did was simply lower the multiplier to the minimum and lower the vCore step by step. I've gone down to 0.85 (from the default 1.2), but – while the system was stabile, I found no traces of lower consumption.
Before the system idled at around 48W, after the setting it was like 45-46W. As I have a cheap measuring device (with a fault rate of prop. 3-4W), this could be next to nothing.
Is there something I did wrong? What is the lowest Watt rate one can get via such settings?
Thanks
I have a server (E5200 + GA-G41M-ES2L + 2 HDDs) – naturally in this case, speed is much less important than power consumption. So I thought it would be a good idea to toy around voltages: I whipped out my cheap power consumption meter, and entered the BIOS.
I found very little usable info on how to effectively do this, so what I did was simply lower the multiplier to the minimum and lower the vCore step by step. I've gone down to 0.85 (from the default 1.2), but – while the system was stabile, I found no traces of lower consumption.
Before the system idled at around 48W, after the setting it was like 45-46W. As I have a cheap measuring device (with a fault rate of prop. 3-4W), this could be next to nothing.
Is there something I did wrong? What is the lowest Watt rate one can get via such settings?
Thanks