so i switched my hd 5770 for a 8800gts because my 5770 broke and my sound vanished (no longer have a graphics card) now when my speakers are in they make a high pitch squeeling noise and i dont know what the problem is, will buying a sound card stop this from happening becuase i have a feeling my onboard sound is completely broken
check that your video card in all the way and the power connected to the video card is fine. check your 12v rail of your power supply if it a cheap or old power supply it could be making ac ripple and sending into the mb and your sound card/speakers are picking it up. or the 12v rail is to low to run the older video card. check your pc to see if there a sound card or another card next to the video card..you could have an irq or dma issue. check the bios to make sure the irq set to auto and the sound set to default. check your speakers that there in the right port...also try a set of head phones. also check that all your power and front panel cables are not near each other.