I have built two matching frontend machines. They are low power AMD dual core processors (athlon 4450e, 2.3 GHz) on nvidia 8200 motherboards (one is a Biostar GF8200-m2+ and the other os an ASUS m3n78-vm) with 4GB or memory. I got a Kill-A-Watt meter, and they run at about 50W idle, and 80W or so on full CPU. This is with the power set at OnDemand under Ubuntu 9.10.<div>
<br></div><div>I realize that the other way to deal with battery usage is to try to get the nvidia chipset power savings working. I read a bit on the internet and found that there was an option for the nvidia drivers </div>
<div><span class="Apple-style-span" style="font-family: monospace; font-size: 13px; white-space: pre; ">Option "RegistryDwords" "PowerMizerLevel=0x2"</span></div><div><span class="Apple-style-span" style="font-family: monospace; font-size: 13px; white-space: pre; ">that goes in the device section of the <a href="http://x.org">x.org</a> file, and is supposed to put the chipset in a low power mode. I did it, and the nvidia configuration program, still shows the clock at 500 MHz, which is the same as usual (I think). In reading up a bit on it, I am wondering if this is mostly about computers on battery power, and not on AC power.</span></div>
<div><span class="Apple-style-span" style="font-family: monospace; font-size: 13px; white-space: pre; "><br></span></div><div><span class="Apple-style-span" style="font-family: monospace; font-size: 13px; white-space: pre; ">Has any played (successfully) with it? I am hoping to get my idle power usage down another few watts, and that in combination with suspend and resume will increase the WAF of my system.</span></div>
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