Dell Vostro 1540 Owner's Manual page 80

Audio
Type
Controller
Stereo conversion
Interface:
Internal
External
Speakers
Volume controls
Video
Video type
Data bus:
UMA
Discrete
Video controller:
UMA
Vostro 1450/Vostro 1550
Vostro 1440/Vostro 1540
Discrete
Vostro 1440
Vostro 1450
80
2.1 channel high definition audio
IDT 92HD87B1
24-bit (analog-to-digital and digital-to-analog)
high definition audio
microphone-in/stereo headphones/external
speakers connector
2 x 2 Watt
keyboard function keys and program menus
• integrated on system board
• discrete
integrated video
• PCI-E x16 Gen1
• PCI-E x16 Gen2
Intel HD Graphics
• Intel HD Graphics
• Intel HD Graphics 3000
Intel HD graphics
AMD Radeon HD 7430M
AMD Radeon HD 7450M