ASUS M5A78L-M/USB3 Compatibility With Corsair XMS3 2x2GB 1600MHz 1.65V?

I have a problem with the sound on my board "popping / clicking sound" like when you power on your speakers but it's constantly does that and even when on standby...I will start from the very first day when I built my PC.Well I built my PC from following parts :

Motherboard: ASUS MA578L-M/USB3 PSU: ALPINE 700W
RAM: Corsair XMS3 2x2GB 1600MHz 1.65V
GPU: Gainward nVidia GTX 550Ti 1GB / 192bit Golden Sample (also knows as "GS")
CPU: AMD Phenom II X4 955 Black Edition 3.2GHz / 8MB Cache
HEAT-SINK: Coolermaster Vortex Plus CPU Cooler
DVD driver: Pioneer DVR-S19LBK which is LightScribe as well
HDD: Samsung Spinpoint F1 don't know which model exactly but spec. > 1TB / 7200RPM /3Gbps.

From the very beginning I had Windows XP 32bit (and of course all of my 4gigs didn't worked, and also I've been suffering sound delay eg. you've been shot and you see that but you'll hear it in about 2 seconds, so NOT GOOD) then I went on Windows 7 Ultimate 64bits (note that I haven't got a speakers JUST > HEADPHONES) so it solved the problem with RAM's (I can use all of them properly now) and I am happy with that, but it was annoying to be sitting all the time on the headphones, so I bought "Logitech X-530 5.1 speakers BRAND NEW ones. And the story began from that moment. I started to be hearing weird sounds and the sound takes a half of a second like "popping/clicking or beeping" or I don't know how it would be called like"..So I tried to bring whole motherboard back to the shop where I bought them, left it to them..After a couple of days I'm back and got told like "the thermal paste was on cpu's socket and cpu's pins "SOMEHOW" ?!?!?....got told again that I could choose that "Motherboard would be sent to ASUS supplier to clean the socket", but CPU I needed to clean my self but the guy was not too sure about my cpu's life and will it work properly or I don't know.. So it is sent now "the MOTHERBOARD" but I've been told to wait for it for another 28 days to get it back, but I couldn't wait for that much and I bought another one, exactly the same one I got sent but just BRAND NEW ONE. So brought home, CLEANED CPU TO THE CONDITION AS IT WAS NEW, added a bit of thermal paste on the surface of cpu, inserted everything onto they belonged positions "ABSOLUTELY EVERYTHING AS IT SHOULD BE" = GOT THE SAME POPPING SOUND.....Well then I tried my friend's exactly the same cpu as I have "AMD Phenom II X4 955 Black Edition etc." = SAME POPPING SOUND..So I'm getting to the conclusion that I need to check "THE RAM MODULES" Cause: NEW MOTHERBOARD SAME CPU *friend's one is doing the same popping sounds as my one (I've even tried my cpu on friend's computer and it goes well just 110% well as it should be")