Posted on 2003-04-01
Hi, I recently got a new PC, but the fans (2 power, 1 MB, huge CPU for AMD +2200, 1 video card, 1 case fan) were so loud I decided to put the PC in the closet and put all the wires through a hole in the wall about 2 inches in diameter. Because I was short on my VGA monitor cable, I bought a cheap 6' extension cable. Now I am getting shadowing on my monitor (eg. white letters about a 1/2 charactor width after black letters). Also my speakers have a background low fuzzy sound even when the volume control is turned off (indicating interference - to me, no expert).
Through the hole is:
power for computer
power for external Zip drive
output to monitor, keyboard, mouse
output to USB hub
output to speakers and line in/microphone to audio card
CAT5 to router from NIC
stereo speaker wire on the floor beside all these others
cable TV wire (about 1 foot away through separate hole in same wall
phone line about 1/2 foot away
stereo about 1 1/2 foot away
TV about 3-4 feet away
questions (assuming this is a signal interference problem):
1) what else could it be?
2) what would be the cause of the most (strongest) interference?
3) what could I wrap around my cheap VGA cable (and audio output) to prevent interference?
4) would physically separating certain cables alieviate certain interferences?
Any other suggestions? Questions?
thanks for any help.