![driver microsoft audio high definition driver microsoft audio high definition](https://matthewvaneerde.files.wordpress.com/2010/08/1-device-manager.png)
If anyone knows how to view hardware interrupts with Process Monitor from sysinternals would you mind explaining it for me please? I don't understand it and Google has not turned up much in the way of instructions for that specifically. This was causing high CPU load due to hardware interrupts. The problem boils down to the fact that my older hardware (motherboard and cpu) don't have enough IRQ availability. This is the thread on AMD forums where I first found the information about this: I use Windows XP and it is displayed as Microsoft UAA Bus Driver for High Definition Audio
![driver microsoft audio high definition driver microsoft audio high definition](https://matthewvaneerde.files.wordpress.com/2010/08/3-search.png)
In Windows Vista / 7 it is displayed as ATI HD Audio according to one of the screen shots. Now let me back track a bit and say that I am not sure if the HD Audio driver is installed with the rest of the catalyst drivers or if it is a driver provided by Microsoft. Specifically the HD Audio driver included with them. I did some more research and found that it is in fact not the card itself overloading the cpu but the catalyst drivers. Well this noise has persisted despite everything I have tried and really annoyed me more then anything. Based on the help given it was believed that the card, being much newer then the cpu, was running faster then the cpu could handle. Thanks to the help of those that replied I was able to determine the problem was not what I originally thought it was. I previously posted a thread about a problem I have been experiencing with my ATI Radeon HD4650 and the Catalyst Drivers.