Although many here have already upgraded their PS3 HDD, those who haven't yet due to being intimidated by the task may wish to check out the following guide:
It's not as intimidating as it looks. If you can handle a screw driver, you can swap out your PS3 hard disk.
PS3 Hard Drive Upgrade Options:
Western Digital - 320GB
Western Digital - 500GB
Since we were the guinea pigs, we'll briefly inform you of where we went wrong and how you can upgrade without error.
1. Careful with the screws - I make this the first point even before backing up because of issues we both had. I could be wrong, but the PS3 screws are made of some soft metal such as pewter. We both stripped out at least one screw.
2. Backup Data - Either flash drives or external hard drives can be used for this process. If you NEED all your saved games back, make sure you have a FAT32 external hard drive, and run the backup utility from "System Settings" then "Backup Utility".
Finally, check out the video below if you haven't seen it yet:
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