At 11:48 PM -0700 3/18/2012, John Carmonne wrote:
Upon closer inspection with TinkerTool I found a 16GB file called
"sleepimage". and erased it. So I checked some more drives and
some have it and some don't.
Macs support two Sleep Modes.
Normal sleep powers down everything except RAM. Keeping the memory
"refreshed" uses battery power.
Safe Sleep (hibernate) snaps your memory's contents to the HD then
powers down everything. This makes waking take a bit longer, but it
means you can hibernate for a long long time without running out of
battery power.
Safe Sleep is supported by most Macs since Sept 2003. I think all
the laptops come with Safe Sleep enabled *by default*.
The basic settings are in the Energy Saver system prefs. There are
quite a few apps that have the settings also.
- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth.
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