SoftBank Group Corp. has held talks with Ampere Computing LLC about investing in the maker of server-computer processors, an attempt to diversify its bet on the booming chip sector, according to people familiar with the situation.

Ampere has held similar talks with multiple would-be investors, but doesn’t currently need to raise money, according to one of the people, who asked not to be identified because the discussions were private.

SoftBank has offered hundreds of millions of dollars for a stake that would value Ampere at more than $8 billion.