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Old Jul 30, 2010, 12:32 PM   #1
mouztrpd
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Can you use SD card as start up disk?

Instead of paying for the solid state drive in the new iMac is possible to use a SD card as the start up disk?
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Old Jul 30, 2010, 12:33 PM   #2
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I know it's possible on Windows...never tried it on my Mac.
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Old Jul 30, 2010, 12:34 PM   #3
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I don't know, but SD cards don't use the same technology as SSDs, and it will be abysmally slow, unless you can find an SD card with read and write speeds above 30MB/s, as most are only around 5-10MB/s.

http://en.wikipedia.org/wiki/Secure_Digital#Speeds

Internal S-ATA HDDs have read and write speeds of around 75MB/s and more.

Last edited by spinnerlys; Jul 30, 2010 at 12:50 PM. Reason: minor uckfup
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Old Jul 30, 2010, 12:35 PM   #4
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What for, so that it is slower than a hard disk?
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Old Jul 30, 2010, 12:40 PM   #5
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How fast can you write to an SDXC?
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Old Jul 30, 2010, 12:43 PM   #6
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Quote:
Originally Posted by Man-Droid View Post
How fast can you write to an SDXC?
I think 12X is the fastest right now.
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Old Jul 30, 2010, 12:43 PM   #7
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Quote:
Originally Posted by Man-Droid View Post
How fast can you write to an SDXC?
up to 104 Megabytes per second
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Old Jul 30, 2010, 12:45 PM   #8
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Originally Posted by Blu-Ray View Post
up to 104 Megabytes per second
Current cards write up to 35 MB/s.
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Old Jul 30, 2010, 01:03 PM   #9
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Even with the faster SDXC cards coming, they will be much slower than using a hard drive. You are better off using the SD for storage.
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Old Jul 30, 2010, 01:35 PM   #10
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Thanks, now I know.
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