I had replaced motherboard, RAM, and CPU, and Windows 7 rebooted OK on the existing hardrive, sans drivers. I went ahead and used Samsung's tool to clone my spinner to a new 840 Evo. You should use the latter, but don't run the OS optimization stuff. If you have TRIM enabled, you can just leave it as free space, but without TRIM you'll want to actually overprovision the drive leaving 10-20% unpartitioned.Įdit: also, the Samsung Migration tool and Samsung Magician are two different things. Stuff like RAISE on Sandforce drives or other drives that use a NAND die for error correction still typically need overprovisioning to account for blockmap size and leaving LBAs open for internal garbage collection. In which case using this tool would be wasting 10% of your disk. Please remember that some disks now have this over-provisioning built in. If you don't overprovision it can shorten the life of the drive (likely not really measurable) but as the drive gets close to being full write performance will start to heavily degrade. It chops 10% off the disk size (the tool does something special with the partition table, marking the space as raw) that the drive uses internally for load balancing and moving sectors around.
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