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Can I use SATA-II??
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Mac Enthusiast
Join Date: Nov 1999
Location: Hanson, MA
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Hi all,
Sorry if this is a dumb question. I'm looking at a 2nd hard drive for my G5 tower. I know my current drive is a SATA-150 drive, I think? Anyway, can I use the new SATA-II drives? And is that the same as SATA-300? I'm so confused. Thanks.
Tom
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Moderator  Join Date: May 2001
Location: Hilbert space
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Have you had a look at the storage FAQ?
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I don't suffer from insanity, I enjoy every minute of it.
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Mac Elite
Join Date: Sep 2006
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You can pop in a second SATA-I drive without a problem.
The SATA-II is the same as the SATA 300. It refers to speed in Mbytes/sec. SATA-I was 150 Mbytes/ sec. To use the SATA-II drives you will need a controller card.
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Dedicated MacNNer
Join Date: Nov 2004
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Originally Posted by Sherman Homan
You can pop in a second SATA-I drive without a problem.
The SATA-II is the same as the SATA 300. It refers to speed in Mbytes/sec. SATA-I was 150 Mbytes/ sec. To use the SATA-II drives you will need a controller card.
Not quite right. To get the full speed of SATA-II, you need a controller card. But the SATA standards are forward and backward compatible. So you can put a SATA-II drive on a SATA-I controller (and vice versa) and it will work fine.
/edit: and just a note on the speed thing. SATA-I doesn't really saturate its bandwidth completely, so SATA-II really isn't a whole lot faster.
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I love lamp! I love lamp...
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Mac Elite
Join Date: Sep 2006
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You are right, they are forward/backward compatible. I assumed that if he was interested in spending the extra money for a SATA-II he would want the speed increase and that requires a card. Otherwise, why bother?!
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
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No, you can't use SATA-II, because it doesn't exist anymore. When you say "SATA-II" you could mean "SATA 3Gb/s" "SATA-IO" or a number of other things.
Please, join the fight to stop people from using deprecated and ambiguous terms.
(Last edited by mduell; Oct 2, 2006 at 07:03 PM.
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Dedicated MacNNer
Join Date: Nov 2004
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Originally Posted by Sherman Homan
You are right, they are forward/backward compatible. I assumed that if he was interested in spending the extra money for a SATA-II he would want the speed increase and that requires a card. Otherwise, why bother?!
1. The speed difference is barely noticible.
2. The price difference is almost non-existant. (but the price of a SATA 3Gb/s controller for a Mac is pretty large!)
Sorry about the naming issue.
/edit: looking around more closely at NewEgg, there is about a $10 difference between SATA150 and SATA 3Gb/s drives at 300gig. So I stand corrected!
(Last edited by BigBadBiologist; Oct 2, 2006 at 08:27 PM.
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