board relacement in solaris server

HI
Can anyone clarify my doubt.V are using two SUN V890 servers.At present the board in t passive node is 1.5 ghz and due to over load we are plannin to remove the board from passive node and insert it in active node and then insert a 1.3ghz board in passive node..will it be possible if so please can anyone give the procedure and details bout that..plz its very urgent...

check sunsolve system handbook.

Pls get a field engineer to advise you and do the FRU placements. Firstly, are your systems fully populated or are you getting any downtime?

@incredible
v are getting a downtime..