I am getting (seemingly random) disk I/O errors on my bootdrive. At first I thought it was caused by a faulty hard drive, but now I've replaced it and I still get those errors.
These are the steps I have followed beginning from the first time I noticed something was wrong:
- Laptop hangs with just Google Chrome and Postbox (an e-mail application)
- I restart the laptop, but it never gets past the screen with the grey apple.
- Started Apple Hardware Test by holding "D" during startup. This came up with no errors
- Through Verbose mode, and Disk Utility of the install CD I saw that it had disk I/O errors.
- I switched the Momentus XT drive for the stock Apple HDD.
- Installed a fresh copy of Snow Leopard
- Recovered everything from a Time Machine backup
After a day it started giving disk I/O errors again in Console. This makes me think that an app or a setting is causing this as it is unlikely that both the hard drives are corrupted.
How can I pinpoint which application is the cause?
Below are my system details:
MacBook Pro 5,3 2.66 Ghz / 8GB RAM Snow Leopard 10.6.8 First HDD: Seagate Momentus XT 500GB Second HDD: Stock Apple Hitachi 320GB