disable CUDA in the Nvidia driver set, update ur sound driver.
i have the familiar problem
playing APB around 30 min then PC lock up and wierd sounds comes out , need hard reboot
it would be great if i fix this issue without buy new sound card.
Cuz u know that u can send the results of the test dxdiag to support and describe ur problem.
But more ppl complainin about Realtek sounds cards, if all that fails, buy cheapest external sound card (10-20$)
Edited by Loll1pop, 13 April 2013 - 09:40 PM.