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See ???Quick, On-the-Fly Backups,??? later in this chapter, for a quick and dirty
alternative to shadow copies.
Test for Bad Memory (RAM)
Bad memory can manifest itself in anything from frequent error messages
and crashes to your system simply not starting. Errors in your computer??™s
memory (RAM) aren??™t always consistent, either; they can be intermittent
and can get worse over time.
Problems due to using the wrong kind of memory are not uncommon; to
find out which type of memory you should use, consult the documentation
that accompanies your computer or motherboard. If you have no such literature,
check the web site of the computer or motherboard manufacturer and
find out for sure before you just jam something in there. Odds are, your
friend??™s old memory modules not only won??™t work in your system, but
they??™re probably responsible for that burning smell, too.
The first thing you should do is pull out each memory module and make
sure there isn??™t any dust or other obstruction between the pins and your
motherboard (use a dry tissue or lens-cleaning paper; don??™t use any liquids
or solvents). Look for broken or bent sockets, metal filings or other obstructions,
and, of course, any smoke or burn marks. Make sure all your modules
are seated properly; they should snap into place and should be level and
firm (don??™t break them testing their firmness, of course).
If all that is in order, there are three ways to determine whether your RAM is
actually faulty.
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