WDGC Posted April 4, 2006 Share Posted April 4, 2006 With my current machine the S3 mode is the default setting and using standby seems to turn off just about everything, including the CPU fan. My previous machine had the S1 mode as the default setting and it seemed to me only the HDD and monitor were turned off with, as far as I can recall, the CPU fan still running.Broadly speaking, are these the differences between the two modes? Link to comment Share on other sites More sharing options...
WDGC Posted April 5, 2006 Author Share Posted April 5, 2006 I was mainly concerned about the CPU fan being turned off in S3 mode, but after reading this Wikipedia article see this is as intended, with the CPU itself being powered off in modes S2 and S3.http://en.wikipedia.org/wiki/Advanced_Conf...Power_Interface Link to comment Share on other sites More sharing options...
nmX.Memnoch Posted April 5, 2006 Share Posted April 5, 2006 S3 offers something closer to a true powered off state than S1 does. There are still a few things running with low voltages, but it still uses much less power than S1.As you found out, the CPU fan being powered off in the S3 state is perfectly normal. Link to comment Share on other sites More sharing options...
Fulvian Posted April 8, 2006 Share Posted April 8, 2006 AFAIK, before entering S3 mode, everything (including processor's current state) is saved in memory, and thus memory is the only component that's still getting fully powered, because it holds all the data needed to return from S3 state to normal state. Link to comment Share on other sites More sharing options...
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