The server motherboard maker contracted an outside investigations firm to analyze current and older-model Supermicro motherboards. In a letter to customers, Supermicro explains the review found no evidence of any malicious hardware on or in the boards:
Computer hardware maker Super Micro Computer Inc told customers on Tuesday that an outside investigations firm had found no evidence of any malicious hardware in its current or older-model motherboards.Full details at Reuters. The company that performed the review wasn't mentioned by Supermicro, but Reuters was able to dig up that it was Nardello & Co.
In a letter to customers, the San Jose, California, company said it was not surprised by the result of the review it commissioned in October after a Bloomberg article reported that spies for the Chinese government had tainted Super Micro equipment to eavesdrop on its clients.