Videos keep stuttering and sometimes losing sound.

make sure the mb has the f8 bios for the newest cpu code. in the bios turn on xmp profile. if you used the driver cd with the mb check that your running the newest drivers. check under device manager that there no missing drivers.
i dont know if it a typo or a hack when i tried to download the sound drivers they would not when i used the ftp on there server i got a Russian spam web page. the drivers on real are 2.x the ones on that web page say 3.x. with new build make sure java and flash are updated and with most online video now most use some form of compression. you may be missing a few audio and video codac. also with web video right click on the video window and make sure it set to unlimited download..it let windows buffer more of the online videos.

having the same problem but luckily i found this

http://www.tweaking.com/content/page/windows_repair_all_in_one.html

solved my sound stuttering problem while listening to online radios and playing local music file. give it a try.. and here is my pc specs.
Motherboard
CPU Type QuadCore AMD A8-5600K, 3900 MHz (39 x 100)
Motherboard Name MSI FM2-A75MA-P33 (MS-7721) (1 PCI, 1 PCI-E x1, 1 PCI-E x16, 2 DDR3 DIMM, Audio, Video, Gigabit LAN)
Motherboard Chipset AMD A75, AMD K15.1
System Memory 3280 MB (DDR3-1600 DDR3 SDRAM)
DIMM3: Crucial CT25664BA160B.C8F 2 GB DDR3-1600 DDR3 SDRAM (11-11-11-28 @ 800 MHz) (10-10-10-27 @ 761 MHz) (9-9-9-24 @ 685 MHz) (8-8-8-22 @ 609 MHz) (7-7-7-19 @ 533 MHz) (6-6-6-16 @ 457 MHz)
DIMM4: Crucial CT25664BA160B.C8F 2 GB DDR3-1600 DDR3 SDRAM (11-11-11-28 @ 800 MHz) (10-10-10-27 @ 761 MHz) (9-9-9-24 @ 685 MHz) (8-8-8-22 @ 609 MHz) (7-7-7-19 @ 533 MHz) (6-6-6-16 @ 457 MHz)
BIOS Type AMI (12/02/2013)
Communication Port Communications Port (COM1)
Communication Port Printer Port (LPT1)

Display
Video Adapter AMD Radeon HD 7560D (768 MB)
Video Adapter AMD Radeon HD 7560D (768 MB)
Video Adapter AMD Radeon HD 7560D (768 MB)
3D Accelerator AMD Radeon HD 7560D (Trinity)
Monitor Philips 202EL [20" LCD] (AU41121000211)

Multimedia
Audio Adapter ATI Radeon HDMI @ AMD K15.1 - High Definition Audio Controller
Audio Adapter Realtek ALC887 @ AMD Hudson-3 FCH - High Definition Audio Controller

Storage
IDE Controller AMD SATA Controller
Storage Controller Microsoft Storage Spaces Controller
Disk Drive ExcelStor Technology J9250S (232 GB)
Disk Drive ST500DM005 HD502HJ (500 GB, 7200 RPM, SATA-II)
SMART Hard Disks Status OK

Partitions
C: (NTFS) 146.1 GB (84.5 GB free)
D: (NTFS) 232.9 GB (208.3 GB free)
E: (NTFS) 319.3 GB (318.7 GB free)
Total Size 698.3 GB (611.5 GB free)

Input
Keyboard Standard PS/2 Keyboard
Mouse HID-compliant mouse


Network Adapter Realtek PCIe GBE Family Controller (192.168.1.2)

Peripherals
Printer Fax
Printer Microsoft XPS Document Writer
USB1 Controller AMD Hudson-3 FCH - USB OHCI Controller
USB1 Controller AMD Hudson-3 FCH - USB OHCI Controller
USB1 Controller AMD Hudson-3 FCH - USB OHCI Controller
USB2 Controller AMD Hudson-3 FCH - USB 2.0 EHCI Controller
USB2 Controller AMD Hudson-3 FCH - USB 2.0 EHCI Controller
USB3 Controller AMD Hudson-3 FCH - USB 3.0 xHCI Controller
USB3 Controller AMD Hudson-3 FCH - USB 3.0 xHCI Controller
USB Device USB Input Device

DMI
DMI BIOS Vendor American Megatrends Inc.
DMI BIOS Version V11.5
DMI System Manufacturer MSI
DMI System Product MS-7721
DMI System Version 3.0
DMI System Serial Number To be filled by O.E.M.
DMI System UUID 00000000-00000000-0000D43D-7EBD08F9
DMI Motherboard Manufacturer MSI
DMI Motherboard Product FM2-A75MA-P33 (MS-7721)
DMI Motherboard Version 3.0
DMI Motherboard Serial Number To be filled by O.E.M.
DMI Chassis Manufacturer To Be Filled By O.E.M.
DMI Chassis Version 3.0
DMI Chassis Serial Number To Be Filled By O.E.M.
DMI Chassis Asset Tag To Be Filled By O.E.M.
DMI Chassis Type Desktop Case