Download and install C-Media CMI8738/C3DX PCI Audio Device - driver id 1780631
ADWITS PCIe 3D Stereo Sound Card with CMedia CMI8738 Audio Chip,PCI Expresss 1x to 5.1CH Internal Sound Card for Windows XP Vista 7/8 / 10/2000, Black : Amazon.in: Computers & Accessories
PCI Audio Digital Sound Card 5.1 Channels CMI8738 Chipset for Desktop – RIITOP