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SSD + Icy Dock in PowerMac G5 Dual Core?

I tried to install the OWC Mercury SSD 3G in the lower drive bay of my G5 but the computer crashed. It didn't work.
 
Last edited:
I reinstalled it in my MacPro and it works without problems. I guess the slow SATA 1 of my G5 doesn't like the OWC SSD.
 
Resolved!

Today, I was able to install my Mercury OWC SSD with an Icy Dock in my G5 Dual Core 2.3.
I installed it in the upperbay of the internal SATA1.
No crashes anymore (I guess the SSD was slightly damaged before)
The computer boots up significantly faster and the applications launch faster too.
The slow SATA1 bus remains however a bottleneck.

Disk Test 93.11 (before with Maxtor HD)
Sequential 125.65
Uncached Write 131.55 80.77 MB/sec [4K blocks]
Uncached Write 112.99 63.93 MB/sec [256K blocks]
Uncached Read 140.85 41.22 MB/sec [4K blocks]
Uncached Read 120.74 60.68 MB/sec [256K blocks]
Random 73.95
Uncached Write 42.81 4.53 MB/sec [4K blocks]
Uncached Write 85.48 27.36 MB/sec [256K blocks]
Uncached Read 93.20 0.66 MB/sec [4K blocks]
Uncached Read 120.50 22.36 MB/sec [256K blocks]

Disk Test 249.75 (after with OWC SSD)
Sequential 160.48
Uncached Write 242.31 148.78 MB/sec [4K blocks]
Uncached Write 202.22 114.41 MB/sec [256K blocks]
Uncached Read 84.71 24.79 MB/sec [4K blocks]
Uncached Read 247.02 124.15 MB/sec [256K blocks]
Random 562.84
Uncached Write 431.60 45.69 MB/sec [4K blocks]
Uncached Write 351.08 112.39 MB/sec [256K blocks]
Uncached Read 2827.26 20.03 MB/sec [4K blocks]
Uncached Read 629.82 116.87 MB/sec [256K blocks]
 
Last edited:
Mac Hammer Fan said:
Today, I was able to install my Mercury OWC SSD with an Icy Dock in my G5 Dual Core 2.3.
I installed it in the upperbay of the internal SATA1.
No crashes anymore (I guess the SSD was slightly damaged before)
The computer boots up significantly faster and the applications launch faster too.
The slow SATA1 bus remains however a bottleneck.

Disk Test 93.11 (before with Maxtor HD)
Sequential 125.65
Uncached Write 131.55 80.77 MB/sec [4K blocks]
Uncached Write 112.99 63.93 MB/sec [256K blocks]
Uncached Read 140.85 41.22 MB/sec [4K blocks]
Uncached Read 120.74 60.68 MB/sec [256K blocks]
Random 73.95
Uncached Write 42.81 4.53 MB/sec [4K blocks]
Uncached Write 85.48 27.36 MB/sec [256K blocks]
Uncached Read 93.20 0.66 MB/sec [4K blocks]
Uncached Read 120.50 22.36 MB/sec [256K blocks]

Disk Test 249.75 (after with OWC SSD)
Sequential 160.48
Uncached Write 242.31 148.78 MB/sec [4K blocks]
Uncached Write 202.22 114.41 MB/sec [256K blocks]
Uncached Read 84.71 24.79 MB/sec [4K blocks]
Uncached Read 247.02 124.15 MB/sec [256K blocks]
Random 562.84
Uncached Write 431.60 45.69 MB/sec [4K blocks]
Uncached Write 351.08 112.39 MB/sec [256K blocks]
Uncached Read 2827.26 20.03 MB/sec [4K blocks]
Uncached Read 629.82 116.87 MB/sec [256K blocks]
Click to expand...

Not worth investing that into a G5, why didn't you get a Mac Pro? 2006/2007 or whatever.
Anyone that can answer why the SSD is so slow in a G5 but not on modern macs?
 
Intelligent said:
Not worth investing that into a G5, why didn't you get a Mac Pro? 2006/2007 or whatever.
Anyone that can answer why the SSD is so slow in a G5 but not on modern macs?
Click to expand...
Once again a useless post...

The SSD will not run at full speed due to the SATA I chip set on board. There still is a good reason and upgrade by using an SSD in a G5.
 
Intelligent said:
Not worth investing that into a G5, why didn't you get a Mac Pro? 2006/2007 or whatever.
Anyone that can answer why the SSD is so slow in a G5 but not on modern macs?
Click to expand...

I want to run Classic applications on an old but fast PowerMac.
And believe me, the speed improvement is noticeable. 😉
 
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