Hi,
Whenever I boot my computer it makes a high pitch humming noise. I thought that it was speakers but one day I disconnected them and still the noise is there. I am have an old p4 machine with 1GB ram. There is a 160 Gb hard drive with an LG DVD writer. Everything is out of warranty. I do not understand the exact cause of this problem. Is any part of my system is damaged. I worry about this. Please help.
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