Is it possible to set a multiplier higher than 12.5 safely with L3 and L4 bridges?

[mx]

Will it damage the XP processor if you set a multiplier higher than 12.5 via the L3 AND L4 BRIDGES?:eh?:

[TranceBear]

Originally posted by mx
Will it damage the XP processor if you set a multiplier higher than 12.5 via the L3 AND L4 BRIDGES?:eh?:

I feel it would be easier and safer to do it by the typical unlocking method.