11-19-2007, 04:11 PM #1
160GB Hard Drive reads 148GB Hard Drive :(
- Member Since
- Oct 10, 2007
- MacBook 1.83Ghz Core 2 Duo, 1GB ram, 160GB HD. iMac 20" 2Ghz Core 2 Duo Aluminum, 2GB ram, 250GB HD
I bought a 160GB Hard Drive for my MacBook new and when I open DisK Utility, it reads the Hard Drive as 148GB instead of 160GB.
Is this right? Or have I been given a Hard Drive that is 148GB instead of 160GB.
PS... Mac OSX isn't installed yet on the drive because it is new.
11-19-2007, 04:14 PM #2
Formatting a disk will make the disk appear "smaller".
Even if there is nothing installed, the disk is still formatted.__________________________________________________
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11-20-2007, 11:25 PM #3
- Member Since
- Sep 29, 2007
1024MB per gig, not 1000MB. It's the way bytes are counted.
11-20-2007, 11:44 PM #4
As everyone else stated, there are two things that can change advertised versus usable space.
1. Most advertised sizes are not formatted sizes (since different filesytems will take different amounts of space)
2. Advertised space usually considers 1GB = 1000MB. It will usually say on the box. OSes always consider 1GB = 1024MB.
11-20-2007, 11:48 PM #5
Also theres the amount of space sectors and stuff take up so they mathematically with the 1GB=1024MB, 1 MB=1024kB, 1kB=1024 bytes... I'm fairly sure formatted capacities vary for different file systems too.
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