Jeopardy state Query

Hi Team,

I have a query,If I have a 2 node cluster set up( S1 -S2) and system S2 went into the state of Jeopardywhat would be the impact on the service group if

a) SG has no critical resources setup

b) SG has critical resource set up

What would be the steps to rectify the this Jeopardy state.

Please guide.

Thanks..