Strange Buzzing noise from my ASUS P6T7 MB

[SiriusDoggy]

So I've had my system up and running for a couple months now and yesterday after it was running for about 8 hours it started making this buzzing noise that goes off twice every 10 seconds. My first thought was it was overheating and some sort of alarm so I rebooted and went to the BIOS to check the CPU and MB temps. They are running normal as far as I can tell.
CPU 42c - 107f
MB 40c - 104f
This was after being on almost all day.

I recorded a 1 minute video so you can hear the noise. It's not the BIOS beep noise, it's more like a buzzer type noise. It appears to be coming from around the CPU as you can tell when I move the flip camera around it gets louder when around the CPU.
ASUS P6T7 Motherboard noise

Here's the specs:
ASUS P6t7 WS Motherboard
i7 950 Processor
CoolerMaster V10 CPU/Memory cooler
12GB OCZ Gold Memory
PNY Quadro FX 4800 video card
2x 300GB SAS drives - RAID 0 OS drive
2x 1TB drives for data.

Any help woulod be greatly appreciated.

Happy holidays!

FYI - It started after the system was running for about 8 hours but now does it constantly, immediately at power on.

[David M]

Take a roll from a paper towel, put it up to your ear and start moving the other end of the roll around your computer. I know it sounds bizarre, but it works.

[jdeb]

sounds like something is caught up in your v10 cpu fan. I would try that first, unplug the v10 and see if it goes away. Nice computer by the way

[SiriusDoggy]

David - great idea!
I tried that and was able to narrow the sound down to the CoolerMaster V10! Strangely though, it wasn't one of the fans but the noise dissappeared after I unplugged the TEC cooling power cable on the bottom side of the V10.