installing a VIDEO card should not automatically preempt or disable a system's audio functionality. and that cards audio hdmi is notorius for conflicting or trying to reinstall the catalyst drivers.t's nice that a video card has onboard sound. No sound through the onboard audio jack, no sound through the HDMI, even tried adding a new sound card.no sound.
onboard disable in the bios or the cards ati hdmi drivers need to uninstalled with catalyst utility.When I installed the card, my cpu was spiking up to 100% then down to 50% then stay there. posted here too: ĭude if your running a sapphire 4850 hd 512 gddr3 you need to run either the onboard sound and graphics or the 4850's hdmi. This is a serious problem as it basically makes my system unusable. I also took out my tv tuner and unplugged everything except (DVI-to-VGA to monitor) and (USB keyboard/mouse), and still get the bug. But I know it doesn't for me, because I disabled onboard LAN in BIOS and still got the same bug. One of those links suggests it has something to do with onboard ethernet LAN.
Has anyone out there ever seen any ATI video card work correctly (no system interrupts 100% of 1 cpu craziness) on any version of Windows 7, without this error? Btw I'm using fresh install Windows 7 Ultimate 64-bit (same error on 32-bit too). Here is an example of other people reporting the same (or similar) problem: Or, is there a work-around? I am glad to try a work-around, I don't want to have to revert back to my old 32-bit Windows XP :-(, I am hoping to stick with my new fresh install of 64-bit Windows 7. Not good! Does anyone at least know about this problem? This System Interrupts bug for my ATI Radeon HD 4850 is wasting 100% of 1 of my 2 CPU's. I tried ATI CCC (Catalyst Control Center) 9.7 and 9.9, and neither fixed the problem. My Radeon 4850 runs fine in Windows XP 32-bit, but it's totally broken for both (my fresh install Windows 7 64-bit) (and my upgrade to Windows 7 32-bit). Because I took it out, replaced it with my old video card, and the old video doesn't have this problem (in the same PCI-E slot too btw). xperf.exe showed the device causing the interrupts as "Unknown", but I know it's the ATI video card. In other words, it's basically using about 100% of 1 of my 2 CPU cores. Resource Manager shows System Interrupts taking an average of around 48% CPU use.
So, the Task Manager shows up to 50% CPU use even when computer is idle. The problem is that 1 of my 2 cores is constantly in use. I have an HP media center m7248n, with an ATI Radeon HD 4850, trying to run a fresh install of Windows 7 64-bit.