- Joined
- Jul 26, 2009
I am having a major problems with a high pitched beeping/cracking/hissing sound coming from my speakers. The sound starts about halfway through the Windows startup screen. The system is the workstation in my signature.
The speakers are powered studio monitors and do not make the sound with any other source and I have even tried using the same wiring and power with the computer running but using my phone as a source to eliminate any local EMI source.
Thinking there might be a problem with my sound card, I tried the onboard audio controller and a Fiio E17 USB DAC. The problem persisted with all 3 sound sources.
Within the system I have removed all the hard drives, DVD drive, every PCI/PCIe card except 1 graphics card (have tried leaving both in the system in different slot). I have also disconnected all but the essential fans on my CPU, 260GTX, and PSU. So all that is left in the system is the CPU (stock speeds), 1 stick of RAM, SSD, and PSU. While I was in there, I thoroughly dusted everything, not that it was particularly dirty.
Windows 8 and all hardware drivers are up to date and there is no system instability.
However, when I opened the case and disconnected some extra fans, I noticed that I could hear the same buzzing noise that is emanating from my speakers even with my speakers disconnected. It sounds like it is coming from the CPU area of the motherboard. Thinking it might be a power regulating problem, I turned off SpeedStep in the BIOS and disabled all CPU power control in Windows. Needless to say, that didn't help either.
Also, I have noticed that if I hold down a key on my keyboard, the sound changes from a random collection of high pitched beeps, crackles, and hissing to a consistent, high pitched, high rate beepish sound.
It seems to me that it should be software based since it starts ate the exact same point about halfway through the Windows startup screen and does not start regardless of how long I leave the system in the BIOS settings. That leads me to think that its not just a capacitor charging and then complaining.
Any ideas?
Thanks in advance for the help!
The speakers are powered studio monitors and do not make the sound with any other source and I have even tried using the same wiring and power with the computer running but using my phone as a source to eliminate any local EMI source.
Thinking there might be a problem with my sound card, I tried the onboard audio controller and a Fiio E17 USB DAC. The problem persisted with all 3 sound sources.
Within the system I have removed all the hard drives, DVD drive, every PCI/PCIe card except 1 graphics card (have tried leaving both in the system in different slot). I have also disconnected all but the essential fans on my CPU, 260GTX, and PSU. So all that is left in the system is the CPU (stock speeds), 1 stick of RAM, SSD, and PSU. While I was in there, I thoroughly dusted everything, not that it was particularly dirty.
Windows 8 and all hardware drivers are up to date and there is no system instability.
However, when I opened the case and disconnected some extra fans, I noticed that I could hear the same buzzing noise that is emanating from my speakers even with my speakers disconnected. It sounds like it is coming from the CPU area of the motherboard. Thinking it might be a power regulating problem, I turned off SpeedStep in the BIOS and disabled all CPU power control in Windows. Needless to say, that didn't help either.
Also, I have noticed that if I hold down a key on my keyboard, the sound changes from a random collection of high pitched beeps, crackles, and hissing to a consistent, high pitched, high rate beepish sound.
It seems to me that it should be software based since it starts ate the exact same point about halfway through the Windows startup screen and does not start regardless of how long I leave the system in the BIOS settings. That leads me to think that its not just a capacitor charging and then complaining.
Any ideas?
Thanks in advance for the help!
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