Quien me da una mano? no tengo sonido

Hola, quisieran qe me den una mano, hace poco formatee la pc y not engo sonido ya instale todo y sigo sin sonido, si alguien me da una mano, se lo agradeceria

--------[ EVEREST Ultimate Edition ]------------------------------------------------------------------------------------

Version EVEREST v5.30.1990 Beta/es
Homepage http://www.lavalys.com/
Report Type Report Wizard [ TRIAL VERSION ]
Computer FELIPE
Generator Jurgensen
Operating System Microsoft Windows XP Professional 5.1.2600 (WinXP RTM)
Date 2011-03-09
Time 18:19


--------[ Summary ]-----------------------------------------------------------------------------------------------------

Computer:
Computer Type Equipo multiprocesador ACPI
Operating System Microsoft Windows XP Professional
OS Service Pack [ TRIAL VERSION ]
Internet Explorer 6.0.2900.5512
DirectX 4.09.00.0904 (DirectX 9.0c)
Computer Name FELIPE
User Name Jurgensen
Logon Domain [ TRIAL VERSION ]
Date / Time 2011-03-09 / 18:19

Motherboard:
CPU Type Intel Pentium 4, 3000 MHz
Motherboard Name ASUSTeK Computer INC. P4S800
Motherboard Chipset SiS 648FX
System Memory [ TRIAL VERSION ]
BIOS Type Unknown
Communication Port Puerto de comunicaciones (COM1)
Communication Port Puerto de impresora ECP (LPT1)

Display:
Video Adapter NVIDIA GeForce4 MX 4000 (Microsoft Corporation) (64 MB)
Monitor Monitor Plug and Play [NoDB] (174320000080)

Multimedia:
Audio Adapter SiS 7012 Wave

Storage:
IDE Controller Controladora SiS PCI IDE
Floppy Drive Unidad de disquete
Disk Drive Maxtor 4R120L0 (114 GB, IDE)
Optical Drive TSSTcorp CD-R/RW SH-R522C
Optical Drive TSSTcorp DVD-ROM TS-H352A
SMART Hard Disks Status OK

Partitions:
C: (NTFS) [ TRIAL VERSION ]
Total Size [ TRIAL VERSION ]

Input:
Keyboard Teclado estándar de 101/102 teclas o Microsoft Natural PS/2 Keyboard
Mouse Mouse compatible con HID

Network:
Primary IP Address [ TRIAL VERSION ]
Primary MAC Address 00-11-D8-86-F7-52
Network Adapter Adaptador Fast Ethernet SiS 900-Based PCI (192. [ TRIAL VERSION ])

Peripherals:
Printer Microsoft Office Document Image Writer
USB Device Dispositivo de interfaz humana USB

DMI:
DMI BIOS Vendor
DMI BIOS Version
DMI System Manufacturer System Manufacturer
DMI System Product System Name
DMI System Version System Version
DMI System Serial Number [ TRIAL VERSION ]
DMI System UUID [ TRIAL VERSION ]
DMI Motherboard Manufacturer ASUSTeK Computer INC.
DMI Motherboard Product P4S800
DMI Motherboard Version REV 1.xx
DMI Motherboard Serial Number [ TRIAL VERSION ]
DMI Chassis Manufacturer Chassis Manufacture
DMI Chassis Version Chassis Version
DMI Chassis Serial Number [ TRIAL VERSION ]
DMI Chassis Asset Tag [ TRIAL VERSION ]
DMI Chassis Type Tower
DMI Total / Free Memory Sockets 3 / 1


--------[ DMI ]---------------------------------------------------------------------------------------------------------

[ BIOS ]

BIOS Properties:
Size 64 KB
Boot Devices Floppy Disk, Hard Disk
Capabilities Unknown
Supported Standards DMI, ACPI
Expansion Capabilities AGP, USB

[ System ]

System Properties:
Manufacturer System Manufacturer
Product System Name
Version System Version
Serial Number [ TRIAL VERSION ]
Universal Unique ID [ TRIAL VERSION ]
Wake-Up Type Power Switch

[ Motherboard ]

Motherboard Properties:
Manufacturer ASUSTeK Computer INC.
Product P4S800
Version REV 1.xx
Serial Number [ TRIAL VERSION ]