How can I install Snow Leopard on HP Pavilion DV7=4077cl one of the problems is the switchable graphic. I have tried lots of different Hackint0sh dvds..((((

My Specs are:


SPECIFICATIONS

Processor and Memory:
Intel® Core™ i3-350M processor
2.26GHz processor speed
3MB L3 cache
4GB DDR3 System Memory (2 DIMM)
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x
Attached device PCI device at bus 127, device 2, function 1

Chipset
Northbridge Intel Havendale/Clarkdale Host Bridge rev. 02
Southbridge Intel HM55 rev. 05
Graphic Interface PCI-Express

DMI BIOS
vendor Hewlett-Packard
version F.23
date 10/21/2010

DMI Baseboard
vendor Hewlett-Packard
model 149C, revision 65.35

Hard Drive and Multimedia Drives:
640GB (5400RPM) SATA hard drive
Blu-ray ROM with SuperMulti DVD±R/RW double layer support protection
5-in-1 integrated Digital Media Reader for Secure Digital cards, MultiMedia cards, Memory Stick, Memory Stick Pro, or xD Picture cards

Audio, Video and Graphics:
Altec Lansing speakers
ATI Mobility Radeon™ HD 5470 switchable graphics with 512MB DDR3 with up to 2202MB total graphics memory (Intel(R) HD Graphics)

Connectivity:
Integrated 10/100/1000 Gigabit Ethernet LAN (RJ-45 connector)
Wireless LAN 802.11b/g/n WLAN

Ports/Slots:
4 USB 2.0, 4th port shared with eSATA
1 HDMI
1 eSATA + USB 2.0
1 VGA (15-pin)
1 RJ-45 (LAN)
1 Headphone-out
1 Microphone-in

Display, Keyboard, Pointing Device and Webcam:
17.3" diagonal High Definition+ HP BrightView LED display (1366 x 768)(1600x900)
101-key compatible with island-style full-size keyboard with integrated numeric keypad
HP ClickPad with On/Off button
HP TrueVision Webcam with integrated digital microphone