Dell Inspiron 1720 (Mid 2007) - Manual (Page 182)

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Specifications
Video type: discrete video card
Data bus PCI Express X16
Video controller nVIDIA GeForce 8400M G or nVIDIA
GeForce 8600M GT
Video memory 128 MB (GeForce 8400M G) or 256 MB
(GeForce 8600M GT)
LCD interface LVDS
TV support NTSC or PAL in S-video, composite, and
component modes
Audio
Audio type two-channel high-definition stereo
Audio controller Intel HDA Azalia
Stereo conversion 24-bit (analog-to-digital and digital-to-
analog)
Interfaces:
Internal Intel High Definition Audio
External microphone-in connector, stereo
headphones/speakers connector
Speaker two 4-ohm speakers
Internal speaker amplifier 2 Watts per channel into 4 ohms
Volume controls program menus, media control buttons
Display
Type (active-matrix TFT) 17-inch WXGA+
17-inch WXGA+ with TrueLife
17-inch WUXGA with TrueLife
Video (continued)