Besoin d'assistance

Bonjour,
J'ai tout d'abord un pb de son depuis que j'ai fait mon portable de vista a win 7. je ne trouve pas le pilote compatible sous win7.
Ensuite je voudrai changer de processeur opter pour un DualCore AMD Turion 64 X2 TL-60 et de Ram pour 3 ou 4 Go. Voici la configuration de HP dv9700 ci--dessous, j'attends vos avis.

Computer:
Computer Type ACPI x86-based PC (Mobile)
Operating System Microsoft Windows 7 Ultimate
OS Service Pack [ TRIAL VERSION ]
Internet Explorer 8.0.7601.17514
DirectX DirectX 11.0
Computer Name GERALD-PC
User Name Gerald
Logon Domain [ TRIAL VERSION ]
Date / Time 2011-11-28 / 10:35

Motherboard:
CPU Type Mobile DualCore AMD Turion 64 X2 TL-50, 1600 MHz (8 x 200)
Motherboard Name Hewlett-Packard HP Pavilion dv9700 Notebook PC
Motherboard Chipset nVIDIA nForce 7150M-630M, AMD Hammer
System Memory [ TRIAL VERSION ]
DIMM2: Nanya NT2GT64U8HD0BN-3C [ TRIAL VERSION ]
BIOS Type Phoenix (03/22/11)

Display:
Video Adapter NVIDIA GeForce 7150M / nForce 630M (128 MB)
Video Adapter NVIDIA GeForce 7150M / nForce 630M (128 MB)
3D Accelerator nVIDIA GeForce 7150M
Monitor AU Optronics B170PW06 V2 [17" LCD]

Multimedia:
Audio Adapter nVIDIA MCP67 - High Definition Audio Controller

Storage:
IDE Controller Ricoh Memory Stick Controller
IDE Controller Ricoh SD/MMC Host Controller
IDE Controller Ricoh xD-Picture Card Controller
IDE Controller Standard Dual Channel PCI IDE Controller
Storage Controller AEFHNNUX IDE Controller
Disk Drive TOSHIBA MK1237GSX ATA Device (120 GB, 5400 RPM, SATA-II)
Optical Drive XABQT 1IV4TM7 SCSI CdRom Device
SMART Hard Disks Status OK

Partitions:
C: (NTFS) [ TRIAL VERSION ]
E: (NTFS) 36765 MB (25410 MB free)
Total Size [ TRIAL VERSION ]

Input:
Keyboard HID Keyboard Device
Keyboard Standard 101/102-Key or Microsoft Natural PS/2 Keyboard with HP QLB
Mouse Synaptics PS/2 Port TouchPad

Network:
Primary IP Address [ TRIAL VERSION ]
Primary MAC Address 00-1E-68-80-57-3E
Network Adapter Broadcom 4321AG 802.11a/b/g/draft-n Wi-Fi Adapter
Network Adapter NVIDIA nForce Networking Controller (192. [ TRIAL VERSION ])

Peripherals:
Printer Adobe PDF
Printer Fax
Printer Microsoft XPS Document Writer
Printer Send To OneNote 2007
FireWire Controller Ricoh RL5C832 IEEE1394 Controller
USB1 Controller nVIDIA MCP67 - OHCI USB 1.1 Controller
USB1 Controller nVIDIA MCP67 - OHCI USB 1.1 Controller
USB2 Controller nVIDIA MCP67 - EHCI USB 2.0 Controller
USB2 Controller nVIDIA MCP67 - EHCI USB 2.0 Controller
USB Device Unknown Device
Battery Microsoft AC Adapter
Battery Microsoft ACPI-Compliant Control Method Battery
Battery Microsoft Composite Battery

DMI:
DMI BIOS Vendor
DMI BIOS Version @
DMI System Manufacturer Hewlett-Packard
DMI System Product HP Pavilion dv9700 Notebook PC
DMI System Version Rev 1
DMI System Serial Number [ TRIAL VERSION ]
DMI System UUID [ TRIAL VERSION ]
DMI Motherboard Manufacturer Quanta
DMI Motherboard Product 30D1
DMI Motherboard Version 85.26
DMI Motherboard Serial Number [ TRIAL VERSION ]
DMI Chassis Manufacturer Quanta
DMI Chassis Version N/A
DMI Chassis Serial Number [ TRIAL VERSION ]
DMI Chassis Asset Tag [ TRIAL VERSION ]
DMI Chassis Type Notebook

Merci.