It is best to visit Gigabytes website and see which processors are compatible with your motherboard. From there you can pick and choose to see which CPU you would like to get.
Here is a link to their support page for your motherboard.
AM2 socket CPU’s have stopped production. You may have a hard time finding a new one. You can try to see if eBay or Amazon would have a used one. Just be aware that there won’t be any warranty for these CPU’s
AMD Customer Care
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