Caps are an unlikely problem with computers that new. Usually the "black box" (as I can them) PRAM batteries that the mid-90's Performas use don't leak. However, by now it's most certainly dead.
If you want to make a quick PRAM batt, just cut off the wire + connector from the PRAM batt and then connect the ends to 3 AA or AAA batteries in series (red wire goes to positive end). Wrap it in some tape, plug it in and there you go!
The Performa 6200 is one of those 5xxx/6xxx models that may have a faulty CPU or Cache, which can cause random system freezing. There's an Apple utility that can check if your system is affected:
http://support.apple.com/kb/TA35668?viewlocale=en_US
If you want to make a quick PRAM batt, just cut off the wire + connector from the PRAM batt and then connect the ends to 3 AA or AAA batteries in series (red wire goes to positive end). Wrap it in some tape, plug it in and there you go!
The Performa 6200 is one of those 5xxx/6xxx models that may have a faulty CPU or Cache, which can cause random system freezing. There's an Apple utility that can check if your system is affected:
http://support.apple.com/kb/TA35668?viewlocale=en_US