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If I upgrade my laptop from i3 processor to i5 will it run smoothly? Is it compatible with my current device?
The processor your notebook has is an integral part of the motherboard.
The only way to upgrade the processor would be to replace the motherboard with one listed in chapter 3 of your notebook's service manual that may come with a better processor.
HP 15 Laptop PC Maintenance and Service Guide
It would probably cost as much or more as buying a new notebook with a better processor already included.
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