Found a Fix For Fermi Downclocking During 3D Apps

So I had my 480 for about a week with flawless performance and then I put a Zalman ZF3000F on it and I started getting down clocking all the time to something like 405/375 (core/memory). I started thinking what changed between that cooler swap and before and I finally figured it out. HD Audio, that was the only thing different between before the cooler and after; because I updated the drivers after putting on the cooler and the ones before did not have HD Audio. Now I know some of you use the HD Audio option so this isn't a complete fix. But for all the people who do not you should try uninstalling HD Audio in control panel and do the required restart.

I thought I had screwed up somehow during the aftermarket install even with two people installing it and years of experience from both parties, but I knew something else had to be causing this. I've read countless threads of people with the same problem and I hope this helps you if you do not need HD Audio out of your mini HDMI slot.

Good luck

Sorry , I don't understand .

I think he is saying to Uninstall this HD Audio Device

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Originally Posted by Russ_64

I think he is saying to Uninstall this HD Audio Device

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Oh , thanks:)

Sorry I dont understand. Your card downclocked when running 3d apps? It was overheating with the new cooler? You disabled hd audio? What is it for?

It is actually not an unknown bug. Using HD Audio controllers used to cause performance loss on Radeon HD4800 (iirc) cards. Some games crash when they are enabled.
I don't like the uninstalling option since they pop up as devices with a question mark (don't they, OP? I wish they didn't for me). I just disable them. Just in case.

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Originally Posted by fordf250

Sorry I dont understand. Your card downclocked when running 3d apps? It was overheating with the new cooler? You disabled hd audio? What is it for?

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My card idles at 36C and full loads at 68C, so yes; it is over heating. Glad you comprehended this topic as well as the others.

i hate those kind of apps so very unuseful. i dont get really the point of HD audio when most people use 3rd party

Might be interesting to do some benches with HD audio drivers installed vs uninstalled for some of the newer ati and nv cards.

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Originally Posted by LedHed

My card idles at 36C and full loads at 68C, so yes; it is over heating. Glad you comprehended this topic as well as the others.

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I have 2 470gtx running sli idling at 52C and full load at 78-80C and they are not down clocking for any benchmark or game. Why would the 480 start to down clock at 68C?

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Originally Posted by fordf250

I have 2 470gtx running sli idling at 52C and full load at 78-80C and they are not down clocking for any benchmark or game. Why would the 480 start to down clock at 68C?

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He's kidding,it wasn't overheating simply because he had Nvidia HD Audio installed their was some problems that made the card downclock during games or something similar

I thought hd audio started with the 4xx cards so it always had it even before the driver update.

I just didn't use a driver with it in it when I first installed the card.

Glad I stumbled across this post, I had the same problem with a evga gtx460SC (I changed to a WB at the same time as updating drivers too! 266.58) had me pulling my hair out with frustration I was starting to think I static damaged my card when I found it doing it at stock clocks but when I went back to the 258.96 drivers the problem went away.

I like keeping my drivers up to date so its nice to see a fix.

Edit: Its also worth noting it happend on my comp which is x64 whereas when the card was in my mates comp, x86, it ran without issues both using the 266.58 drivers.

glad to help

I have had the same issue !

Something in my SLI rig (with 8 (EIGHT) HD audio controllers) was freezing during load :mad:

After messing with the HD Audio, something in the Pcie lanes fix'd and everything goed back to normal.