Z77A-G45 - Static sounds on USB ports

(pls move to correct forum, srry for the :censored:up)
Hi all,
Problem:
I recently bought a Z77A-G45 for my new rig. However it has static\electrostatic noise on the USB ports. Meaning as soon as i plug in USB speakers or my Razor Carcharitas headset (USB powered) i hear static noise of the insides of my computer. Normal 3.5mm audio output is without static, even when amplified via external amplifier.
These noises are loudest while browsing or other internet traffic, however they are always present and start right after POST.
Troubleshooting tried:
- Different BIOS settings regarding USB
- Even the problem also exist outside the OS, i tried different combination of drivers (beta & officia) for NIC & Audio
- Check and measured all grounding (and checked for ground-loop)
- Removed all hardware except for MOBO+CPU+PSU+RAM and disconnected everything external including front-panel, to insure my perhipicals are not causing the problem
- Did a 10pass memtest
- Flashed the latest stable BIOS
- Separated all cables inside the case and grouped all power & data so no interference is present
- Tried my old Spire 650 Watt PSU
My build setup:
- Coolermaster CM 690 II advanced
- MSI Z77A-G45
- Intel i5-3570k 3.4Ghz (Ivy) (CPUID: 0306A9
- Scythe Mugen 3 PCGH-Edition
- Corsair 8GB (2x4 dualchan in sock 2&4) 1600-999 Vengeance LP
- Samsung 840 Basic 256GB
- Seasonic G450 Powersupply (80+ gold cert)
- Sapphire HD7950 (+boost)
Details MSI Z77A-G45:
- S/N: 601-7752-040B1209097231
- BIOS: V2.9 / 20130118
Kindly help me troubleshoot to decide if my product is defect and need RMA, or if this is fixable.
EDIT: as i also had the boot problem i just updated to BIOS A02 2.10, however problem still persists as soon as computer is powered-up, i honestly do think this is hardware related ?
KR
Kamaradski

That doesn't appear to be a US model, and this is the forums for Toshiba USA. You may want to contact Toshiba in your region. If it's a European model, you could check the Toshiba Europe forums.
- Peter

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Did you check out this page to see if your computer has been tested by HP with Windows 8, prior to upgrading to Windows 8?
HP is not going to support hardware for Windows 8 on any system purchased before Oct 1st 2011. I realize your issue began prior to upgrading to Windows 8, but don't think the upgrade is the way to fix it.
Did you backup everything in Windows 7 in order to downgrade, prior to upgrading to Windows 8?
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Message was edited by: Jaycyn

I have a 27-inch i7 iMac running 10.6.2 and I can confirm that replacing the kernel extension from 10.5.6 works just fine. I had been having this problem every since 10.6.2 (for some reason it worked up until then). I don't think this fix will work if you are booting with the 64-bit kernel (the default on ALL macs is to boot the 32-bit kernel so you would specifically have to be doing this). I haven't tested it in 64-bit though.
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http://evo-wiki.cern.ch/twiki/pub/FAQ/AudioProblemMacOSX1057/AppleUSBAudio.kext. zip
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Z77A-G45 - Static sounds on USB ports

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