Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Just installed Windows 7. After install everything was working fine until i noticed that i had no sound.

It is a AMD Athlon x64 Dual

Sound works in XP, has these sound drivers

  Yamaha DS1 WDM
  HD Audio Render

I tried finding the above drivers, but no luck.

Update: System info:

  Board: ASUSTeK Computer INC. A8R-MVP Rev 1.xx
  Sound Card Model: LW-SC4C
  Windows Version: Windows 7 Ultimate (x64)
share|improve this question
Assuming the sound is on-board the motherboard, what kind of motherboard (make/model)? – Ƭᴇcʜιᴇ007 Jun 12 '10 at 13:29
Board is: ASUSTeK Computer INC. A8R-MVP Rev 1.xx – bobsr Jun 12 '10 at 14:09

You can troubleshoot the problem by booting to an Ubuntu Live DVD (or similar), to determine if it is a hardware or software issue.

If the audio hardware has failed, or you do not want to troubleshoot your Windows installation any further, an easy solution is to purchase a very inexpensive USB sound device. They look just like a USB thumb drive and will plug into a USB port on the back plane of your computer where it will essentially be a replacement sound card. (For example, Deal Extreme has them for less than $4 including shipping)

I found this work-around to be very convenient and flexible solution rather than wasting my time trying to fix the problem.

share|improve this answer

As far as I know, HD Audio Render is a generic driver type for an HD audio card. You should be able to follow these instructions to find out the manufacturer and model of your audio card and then find the appropriate drivers. If you find the vendor & device string and need help finding the driver, you can always edit your original question or leave a comment on this answer. Cheers!

share|improve this answer
Model no is: LW-SC4C , can not find any information on PCIVendor – bobsr Jun 13 '10 at 8:57

it happens when windows enables wrong output to sound , I had this problem too. you shoud do this procedure ,

1) Open Control Panel (All items view)and double click the Sound icon.

enter image description here

2) In the Sound window you will notice the Speakers and other audio devices connected under Playback tab.

enter image description here

3) Now click on Speakers and then click Properties button as highlighted above.

4) In the Speaker Properties dialog box select Use this device to enable Speakers in the Device usage dropdown list at the bottom.

enter image description here

5) Click Apply and then OK button

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.