It depends on your motherboard jihad. What MB do you have? The newer celerons (above 500 Mhz) are based on the Coppermine core. As a result they require lower voltages than the older celerons did. Some motherboards cannot do this. The work around is a slotket card that has it's on voltage regulator. (Powerleap makes one that does just that.)
Regardless though, you will need a slotket adapter card.
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