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This is much like getting your tires balanced this is a counter weight to enable
clean rotation of the HDD Platters, this alignment needs to stay intact for any
hope of HDD repairs
Computer will not turn when I plug in the HDD
This will most likely be a power failure of the PCB and the PCB is drawing more
power than what the whole computer needs to boot, Chance of repair is high but
parts can be an issue
The hard drive Smells
Smell the HDD PCB, if the Drive smells bad then it has had a power Surge and
you need to check for obvious physical damage to the PCB