Hans D. Baumeister

Hans D. Baumeister

Upgrading the Harddisk of my 2007 20” iMac

The original harddisk of my iMac purchased in April 2007 had 250GB, which - of course - filled up mighty quickly. I added an external dual drive box and set these two Terabyte drives up as RAID-1. I synchronise this regularly with a NAS box, also with RAID-1 setup, so the RAID-1 on the iMac is really somewhat overkill. The issue with it is: to save power, I have the drives spin down after some time (Apple doesn’t permit specifying a time), but they spin back up for seemingly unrelated tasks (that don’t require the RAID-1 data).

This is pretty annoying, as you constantly sit around, waiting for the drives to spin back up to do even simple things. So I decided to pimp the iMac with a new hard drive.
I did some research on upgrading, and was happy to find out that my device belonged to those that are still relatively simple to upgrade. The current generation of iMacs is - apparently - a real nightmare.

I used the excellent photo set found at this URL. These instructions are, for the most part, perfect and really well executed; however, my machine looked differently inside, even though it was only built a couple of months later. Also I have a couple of tips and tricks that may help you in successfully upgrading your iMac.
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