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Things to try when dealing with sound distortion

written by Simon (Moderator) | 01/07/2005 | 20:25

Here are some suggestions to try when fighting the sound distortion problems (or pops/crackles).

Motherboards with an ALi 800N chipset:
1) Make the following BIOS adjustments:
- Set “CPU snoop count” to “Low”
- go to “Main => IDE Devices => Primary IDE Master” in the CMOS setup. Press Enter and set “32 Bit Transfer Mode” to OFF.
2) Update the BIOS.

Motherboards with nForce2 chipsets: The sound gets distorted while typing on the keyboard.
This occurs only when using a PS/2 keyboard.
1) If using an ASUS board, put the “Typematic Rate” up one step in CMOS Advanced Settings.
2) If using an Abit board which has this option, set “FSB Spread Spectrum” to “Disabled”

Make sure to have the latest chipset drivers installed.
The problem doesn’t occur with an USB keyboard.

ASUS P4P800:
When using an ASUSP4P800(C) series motherboard with Hyper Threading enabled, the problem might be caused by HDTV, Gigabit Ethernet or 3COM 905B LAN cards.
This problem has been confirmed only to affect the P4P800 series.

You need to make the following BIOS adjustments:
1) Disable “32Bit Data Transfer Mode” for the HDD.
2) Disable “Spread Spectrum” in the Chipset menu.
3) Set the “PCI Latency Timer” to “32” in the PCI/PnP menu.

If that doesn’t solve the problem, disable the mentioned devices or Hyper Threading.
　
ASRock K7S8X/SiS chipset based boards:
When using a SiS chipset based motherboard, you need to install the SiS IDE drivers. It has been reported that the problem occurs frequently with old BIOS versions, so it is recommended to update to the latest version.

The problems might be also caused by:
-excessive overclocking
-not installing the chipset drivers and Windows Service Packs
- virus/spyware infection
- the hard drives and optical disc drives not being connected correctly.

If any of the above will work on a board not listed here, please post the model.

Also, do not forget to deal with the basic things first, like the ones mentioned in this FAQ:
http://www.audiotrack.co.kr/spboard/board.cgi?id=FAQ&action=view&gul=39&page=1&go_cnt=0

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