Dead CPS-3 SIMMS?

[santa978]

can dead CPS-3 Simms be revive ? I have 2 of the 64MB and 3 of the 128MB, when I turn on the Cab i get nothing not even sound, the cab is ok CPS2 games turn on with out a problem.
Im runnin superbios on the CPS3 so in not a dead battery =(