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Max HDD size for PM G5?
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Mac Elite
Join Date: Aug 2005
Location: Vancouver, BC
Status:
Offline
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I need to replace one of my internal drives and am looking to go for a 750 GB or 1 TB drive. I can't find any reference to there being a max size and don't think there is but thought I would double check before dropping the $$. Can someone confirm concretely one way or the other?
Thanks!
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Moderator Emeritus  Join Date: Sep 2001
Location: Arizona
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Offline
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A max has not been reached yet.
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I like chicken
I like liver
Meow Mix, Meow Mix
Please de-liv-er
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Mac Elite
Join Date: Aug 2005
Location: Vancouver, BC
Status:
Offline
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Beauty, as I had hoped. Thanks!
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Clinically Insane
Join Date: Oct 2000
Location: Los Angeles
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"The natural progress of things is for liberty to yield and government to gain ground." TJ
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Administrator  Join Date: Jun 2000
Location: California
Status:
Offline
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If the G5s fully implement the LBA-48 spec, then the max addressable HD space is 128 PetaBytes. There is another limit we will run into sooner, unless Apple releases a firmware update.
The Apple Partition Map can handle a maximum disk size of 2 TB. The GUID partition scheme can go much higher, but PowerMacs cannot boot from a GUID partition scheme. So until/unless Apple releases a firmware update, a boot drive in a PowerMac will be limited to 2 TB.
Larger drives could be installed, but would ignore the extra space if they are partitioned with APM. A larger drive with GUID would work fine as a data disk.
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