I have downloaded the "IDT High Definition Audio CODEC" from Windows Update.
But it failed to install on my XPS420.
Anybody with the same problem?
Here is some info posted by one of the VIP's Fireberd
There is a new update from Microsoft that came out yesterday "IDT High Def Codec". IDT is the company that recently bought Sigma-Tel and any new updates will apparently say IDT rather than Sigma Tel. However, the update corrupts the sound and there is no speaker sound output and on some, according to posts on the Desktops Audio Section causes a "Code 10" Error. I got it on my homebuilt Intel DP35DP motherboard with Sigma Tel yesterday and as I was using headphones at the time, through the front panel headphone jack, I assumed all was well. As it turned out with the IDT update there was no rear speaker sound.
The fix is to use the System Restore to get back to the configuration before the IDT update. Just uninstalling the IDT and/or reinstalling the Sigma Tel did not fix the problem (probably Registry entries that are not changed).
Home Built Sandy Bridge P8P67 i7 2600k @ 4.5 GHz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound CardDell Studio XPS 1645 Window 10 Pro
Forum member since 2003
Yes, I encountered the same problem. I went here and re-installed the sigmatel driver that I had removed prior to installing sp1...(that did fix it for me)...
XPS 420 with Vista Ultimate 64-bit - Q6700 - 8 GB 800 MHZ Mushkin RAM - 2 500 GB Samsung - 425 Watt PSU
Nvidia 8800gt - 24" Gateway LCD