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Can booting of a CF card extend battery life?
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Mac Elite
Join Date: Sep 2000
Status:
Offline
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Has anyone ever tried booting their Mac off of a Compact Flash card via a PCMCIA card reader? I know that this was possible back in OS 9 on older PowerBooks. I'm interested in it now for the purposes of extended battery life. Now that 2 GB CF cards are available and prices are falling, it seems like a cool thing to try.
Currently I only have a 128 MB card and a USB adapter, so I would need to buy some gear to test this out, but I am intrigued. Is it possible just to put the swap partition on the card? Would that increase performance or battery life?
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Addicted to MacNN
Join Date: Oct 2001
Location: BFE
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I used to run a RAM disk in OS9 on my Pismo and it significantly boosted battery life. You have to put all your apps and files on it so it doesn't spin up the HD.
Until you get a CF card big enough to hold a startup disk, you won't know will you (unless someone else reports you can).
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I'm a bird. I am the 1% (of pets).
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Forum Regular
Join Date: Jan 2000
Location: Toronto, ON
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I suspect that things would also be Incredibly Slow.
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Fresh-Faced Recruit
Join Date: Jan 2005
Location: Houston, Texas
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Why would it be slow? If it were flash memory as opposed to Mini HD's, the flash memory will transfer data a lot quicker than your HD.
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01110011011011100110111101110111011000110111001001 1000010111001101101000
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Junior Member
Join Date: Jan 2005
Location: Dallas, TX
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Originally posted by Phiber:
Why would it be slow? If it were flash memory as opposed to Mini HD's, the flash memory will transfer data a lot quicker than your HD.
Might want to google that..
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Mac Elite
Join Date: Oct 2004
Location: Downtown Austin, TX
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Flash memory, especially its access speeds, are wwaaayyyy slower than even the slowest notebook HD.
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Fresh-Faced Recruit
Join Date: Jan 2005
Location: Houston, Texas
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Interesting. I stand corrected.  
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01110011011011100110111101110111011000110111001001 1000010111001101101000
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Forum Regular
Join Date: Jan 2003
Location: Hong Kong
Status:
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I think for Mac OS 9, the slow speed is acceptable. But come to Mac OS X... and using your boot disk as virtual memory... forget it.
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