Computer Hardware
You should never put floppy drives, hard drives, or even VCR tapes or cassette tapes on top of speakers (or near any other source of magnetism) because of:

EMI
EXE
FYI
RFI
IOU

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Computer Hardware
A brownout is defined as:

has nothing to do with electricity
alternating power out, power on lasting a few minutes
complete power out lasting a few minutes
a slightly elevated voltage lasting from seconds to minutes or more
a slightly decreased voltage lasting from seconds to minutes or more

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Computer Hardware
You run a super wing-ding diagnostic program on your PC, and it reports that your hard drive, microprocessor, RAM, and video card have seen better days. To resolve this problem you should:

get another copy of the diagnostic program
replace each part one at a time, rerunning the diagnostic before replacing the next part.
check to see if you have a software problem
replace everything at once and rerun the diagnostic
run an exhaustive memory check

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