Computers are very finicky. They are not really, due to compatibility and the actual replacement process. It is very hard to get it out, but the hardest part is getting it back in, with everything plugged in properly.
It is very risky field replacing one if you don't know EXACTLY what you are doing. So if you have the right board, and a computer that isn't too picky, AND you know exactly how to do it, then yes; but I don't recommend it.
a field replaceable unit
Field Replaceable Units
An LRU is a unit that can be replaced in the field.
Field Replaceable Unit
field replaceable units (FRU)
Field Replaceable Unit...Some of the most common are: Processors, Floppy disk drive, DVD/CD drive, Hard drive, drive cables, the motherboard, expansion cards, RAM, power supplies, keyboards, monitors, CMOS batteries...
What component may be considered a field replacement unit?
i/o card
A CRU is a Customer Replaceable Unit. A FRU is a Field Replaceable Unit. A FRU needs to be replaced/repaired by a qualified field support person, while a CRU could be replaced by the user/customer.
No, a processor is not fixed to the motherboard. Most modern processors are designed to be easily removable and replaceable using a socket on the motherboard. This allows for easy upgrades or replacements without replacing the entire motherboard.
FRU (Field Replaceable Unit)
Generally yes. I recommend using a power supply tester- these are not expensive and readily available.