Monday, February 20, 2006 12:20 PM
eforce
The USB 2.0 power bug is back.
Below are the highlights from:
http://processors.ithub.com/blogs/processor/archive/2006/02/17/6128.aspx
"The issue comes down to the way Windows XP Service Pack 2-equipped notebook PCs react to the presence of USB 2.0 devices. With a one of the devices attached, the machines basically burn more power and thus, when switched to battery power, don’t run for the same length of time on a battery charge."
"The condition seems affect each machine differently. However, some Intel Core Duo systems lost 40 minutes or more of battery life, tests run by AnandTech showed."
"Microsoft, the sites say, has described a fix that involves tweaking a machine’s Windows registry. The fix, in and of itself has an interesting story, as Microsoft appears to have originally kept it out of its public knowledge base, meaning PC makers and other close partners had access, but the public did not."
So if you are using Dual Core notebooks already (lucky you), please remember to patch your machine :)
