Sitting in a box for many years..... Moisture. First reach in and unpug/replug a couple of times anything that even looks like it may be plugged... RAM, drives, CPU [yep, even though the pins should be gold plated...], any cables [both ends]. Then leave the thing switched on for a day or two, or five... interfere with it now and then to get the hdd spinning up. Generated heat may remove the effects of moisture after a bit.
A rundown CMOS battery: it will only lose the date and time, anything else is not important at this stage.
gerbil
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4,208 posts since May 2005
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