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Thread: Crackling Audio on EP45-UD3R front panel audio




  1. #1
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    Default Crackling Audio on EP45-UD3R front panel audio

    Hello,

    Using this older board in a new "office" workstation build with Windows 7 x64, 8GB of RAM etc - it's all working great - except for the front panel audio. I have this board housed in an Antec P182 and have done a bunch of research on how crappy their front panel cabling is when using the front panel audio plug via headphones. Known to be full of static, not grounded and a hundred other excuses.

    So I put a Silverstone FP32 (SilverStone Technology Co., Ltd.- FP32) in here - thinking that their wiring was better, grounded better and hopefully I could play back audio with no static in the phones.

    Well - imagine my surprise after all the rewiring - to find out that even when this standalone panel is installed and connected to the EP45-UD3R HD front panel header - I still get static in the phones when anything happens onscreen with what appears to be "graphics". If I move a window, scroll the mouse etc - I hear the "action" in the form of static over the headphones.

    Obviously some sort of IRQ conflict or possible something else.

    Anyone have any ideas on what I can do (if anything) to remedy this. I do have a pair of AudioEngine speakers connected to the 2-channel rear panel jack and do not seem to have any issue there.

    Appreciate any tips you can share.

    VP

  2. #2
    Join Date
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    Default Re: Crackling Audio on EP45-UD3R front panel audio

    tried disabling eist or c1e in the bios? tried unplugging the front panel usb headers from the motherboard and see if noise stops?
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  3. #3
    KayossZero's Avatar
    KayossZero is offline Junior Member
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    Lightbulb Re: Crackling Audio on EP45-UD3R front panel audio

    My EP45-UD3P (essentially your mobo~) had the same issue with my Antec 1200V1 Case, I would hear static-hiss 24/7 if I tried to use my Sennheiser PC350 headset on the front ports. No issue on the on-board back though. Like you I thought it was purely my case as I had found some comments on other forums with users saying their 1200V1's had the same problem. I never bothered to buy a stand alone front panel unit to see if that would work better however, when I built my new system with a Gigabyte Z77-UD5H but keeping my current 1200V1 case, I was pleasantly surprised to find the front panel audio worked perfect now.

    I know the UD5H has been reviewed to have a great quality on-board audio solution for it's price/tier so I'm guessing that's what is making the difference, maybe the UD3P/R had really poor quality (for the Front Panel at least) components and required a flawless system setup or something to minimize the static or maybe we got bad boards FP audio wise.

  4. #4
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    Default Re: Crackling Audio on EP45-UD3R front panel audio

    Looks like I ma making progress. Taking wazza's suggestion...I checked EIST and C1E - both were already disabled. BUT - I did have the 1394 and both USB cables from the Silverstone FP-32 attached to the UD3R. So I yanked all those cables - and left only the front panel HD Audio connector in place - and low and behold - the static is now gone from the front audio port via headphones when moving anything on screen.

    Looks like one or more of those USB (and/or 1394) was the issue. I will now try to reconnect the FP cables that came with the Antec (USB for starters) to see if the noise stays gone.

    Will update in a bit.

    VP

  5. #5
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    Default Re: Crackling Audio on EP45-UD3R front panel audio

    OK - I reconnected the Antec internal cables to the UD3R internal USB and 1394 headers and left the Silverstone in place to handle just the HD audio connector. It's all good now. As much as I would like to cut down on internal cable crap - this is probably the best solution as everything is working.

    Must say that I am surprised that even the Silverstone exhibits the same crappy grounding or some other issue that causes static in it's audio cable when it's USB (and/or 1394) are connected to this board. In that regard - it's no better than the universally despised Antec cabling.

    VP

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