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Beside this, does changing RAM lose data?
Changing the Ram, motherboard, and CPU will not alter the data that is stored on your hard drives. YOU deciding to reinstall your operating systems without backing anything up, because you bought new hardware… THAT would cause you to lose your data. Changing Ram, Motherboard and CPU will not affect your data.
Subsequently, question is, do you need to reinstall Windows after replacing RAM? No, you don't need to reinstall your operating system. With Windows XP / Vista it is possible that you need to reactivate (my experience is that about 1 out of 10 XP/Vista needed reactivation after RAM upgrade), however this should go better with Windows 7.
People also ask, what will happen if RAM is removed?
Removing the RAM while the current is flowing will be very likely to create sparks and strong currents that will wreak havoc on your system. If you're lucky enough not to cause any physical damage, the system will likely hang.
Can data be recovered from RAM?
Indeed, all data is lost from RAM when the power supply is disconnected; so it is volatile in this context. However, Georgiadis and colleagues have now shown that data held in RAM is not lost if the computer is switched off but the mains electricity supply not interrupted.