1)a ton of anti-spyware programs run in Safe Mode
2) frequent rebooting (as in not running your comp for 3 days straight, so you have plenty of available physical memory and cache)
3)disk defragmentation
4) Also, if your computer is way behind the times (like a 1GHz media PC), you might consider upgrading.
I had that problem for a while before, I eventually just turned off most of my taskbar programs by cleaving everything not called "AOL IM" on msconfig startup. That fixed it for me.
I've dealt with similar issues at work--whatever frequency the BB transmitter works on caused plenty of interference. I've seen it cause CRT displays to jump, and cause buzzing/popping in powered speakers.
On the interference note, it is possible that system/HD activity is causing it--noise in the power feed. Not much you can do except upgrade...
Power line voltage fluctuations take the form of surges (dropped voltage) and spikes (raised voltage). As far as I'm concerned surge protectors are actually spike protectors.
Anyway, speakers and amplifiers are so sensitive that you can also get noise simply from an EM wave when turning other devices on and off.
All the suggestions are good starts.
Did you recently add a wireless device - phone, router, etc.
Or, did you move a wireless device closer to the computer or speaker control box.
I have the same configuration and had the same problem, which turned out to be the combination of my router and the neighbor's router - lots of "noise" in the air these days.
Recommend - moving the wireless device 3-feet away from computer and speakers
Also, the arcing caused by flipping switches in the houses electrical wiring (like an overhead light) will generate bursts of EMI. As has been said before, since it happens when your PC is off and the speakers are on it is an indication that the cheap amps high impedance inputs are recieving EMI. It will be nearly impossible to fix the already broken design. If this is your problem then there is an opportunity for a speaker upgrade.
RichPLS, a failing bearing will most certainly cause a brushed DC motor to emit more EMI. I don't think it will have as noticeable an effect in the brushless DC type motors used in PC cooling fans, ie the coil current may double but that doesn't necessarily indicate there is much more EMI energy. PS these are just guesses about your interesting failing bearing question, and I wouldn't want to quote me or try taking what I said to the bank.
A surge protector might help with a fluctuation that small and short, but an "uninteruptable power supply" would be a far better solution.
I got one of those huge office-sized units free with dead batteries, pulled out the four 6v batteries (expensive) and replaced them with two 12v batteries (cheap).
kk i found out the problem, it comes from a near by plug, it seems that as soon as somtin iz pluged into tah soket the pc somtimes freezes (especially wen playing gamesz) and the popping starts.
i jus need to find new place to plug in laptop lol
I joined the forum simply to comment on this post. I had the same problem. I have a brand new custom computer (I built) q6600 (4.0GHz), 6GBs of ram, 9600gt stalk oc'd 740MHz etc etc. I have a Sony amp system running 2 floor standing polk speakers (250 Watts per Channel).
I couldn't understand why it was making this annoying popping noise, it was only periodic, never constant so I couldn't figure it out. Turns out after 2 hours of research (moving everything 10 feet away and turning system on) that it was my good old Linksys WRT54G and Scientific Atlanta cable modem. Figures! ...which was about 1 foot away from the amp. Moving it 5 feet away solved it completely. Now my router and modem are on 6m (18 Feet) cables 10 feet away from my PC, it may lower my ping for gaming but I don't have to listen to that annoying popping noise anymore.
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