Treasury secretary questions whether the chipmaker pursued illicit AI chip sales and points to export-control scrutiny as the board searches for a permanent chief executive.
Jensen Huang resigned as Nvidia's president, CEO and board member effective immediately; CFO Colette Kress is interim CEO ahead of Nov. 17 results.
The Nvidia founder and CEO stepped down after reported affairs, one with a woman U.S. intelligence concluded was a Chinese spy, thrusting the AI chipmaker into its biggest crisis.
Nvidia's board launched an independent investigation into CEO Jensen Huang's relationship with a woman U.S. officials suspect of spying, as lawmakers push tighter China chip rules.
The AI chipmaker's co-founder stepped down effective immediately, ending 33 years at the company as shares fell and a $1.7 trillion sell-off deepened.
Colette Kress, Nvidia's finance chief since 2013, is running the chipmaker as interim CEO while the board hunts for a permanent successor.
Elon Musk and tech figures are urging Nvidia's board to bring back ousted CEO Jensen Huang, as interim chief Colette Kress steadies a company reeling from a $490bn week.
A grassroots campaign and an internal employee push follow the co-founder's abrupt Nov. 11 resignation amid an affair scandal tied to alleged Chinese intelligence links.