Alright I will try to download motherboard sound drivers again. Here are some basic information about my PC
Computer TypeACPI x86-based PC
Operating SystemMicrosoft Windows 7 Ultimate
Motherboard
CPU TypeDualCore Intel Core 2 Duo E7200, 2533 MHz (9.5 x 267)
Motherboard NameAsus P5KPL/1600 (3 PCI, 2 PCI-E x16, 4 DDR2 DIMM, Audio, Gigabit LAN)
Motherboard ChipsetIntel Bearlake G31
System Memory[ TRIAL VERSION ]
DIMM1: Transcend JM667QLU-2G2 GB DDR2-667 DDR2 SDRAM (5-5-5-15 @ 333 MHz) (4-4-4-12 @ 266 MHz) (3-3-3-9 @ 200 MHz)
DIMM3: Transcend JM667QLU-2G[ TRIAL VERSION ]
BIOS TypeAMI (05/28/08)
Communication PortCommunications Port (COM1)
Communication PortECP Printer Port (LPT1)
Display
Video AdapterNVIDIA GeForce 8600 GT (1024 MB)
Video AdapterNVIDIA GeForce 8600 GT (1024 MB)
3D AcceleratornVIDIA GeForce 8600 GT
MonitorPhilips 107E (107E6) [17" CRT] (CX 757090)
Multimedia
Audio AdapterVIA VT1708B CE @ Intel 82801GB ICH7 - High Definition Audio Controller [A-1]
Storage
IDE ControllerIntel(R) 82801G (ICH7 Family) Ultra ATA Storage Controllers - 27DF
IDE ControllerIntel(R) 82801GB/GR/GH (ICH7 Family) Serial ATA Storage Controller - 27C0
Disk DriveHitachi HDP725050GLA360 ATA Device (500 GB, 7200 RPM, SATA-II)
Optical DriveHL-DT-ST DVDRAM GH20NS15 ATA Device (DVD+R9:12x, DVD-R9:12x, DVD+RW:20x/8x, DVD-RW:20x/6x, DVD-RAM:12x, DVD-ROM:16x, CD:48x/32x/48x DVD+RW/DVD-RW/DVD-RAM)