NVIDIA's board is investigating the behavior of Huang Renxun and considering his departure, with his relationship with Chinese-funded customers and subsidiaries causing ethical controversies; According to SemiAnalysis tracking data, NVIDIA chips restricted to over 1.5GW are still flowing into China, possibly related to Huang Renxun's resignation as CEO just four days after taking office, and the U.S. intelligence community may be pressuring him to leave. During Huang Renxun's 33 years at the helm, NVIDIA's unique structure was highly centralized around him like a kingdom, with about 60 direct subordinates having little decision-making power, the company being large in scale but with few employees, but lacking a successor reserve.