PowerBook g4 turns on cd and fans spin for a second and then turn off

Whe

This is what happens. It has no hdd(but it should show? sign, right) the ram was tested in other tibook and works. What should I do?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0