Right when you see the "1=SMS Menu, 5 = Default Boot List...", press "F1", not "1". Keep tapping it a few times - that is what I do. You should then be able to navigate those menus and select the...
That is some old hardware.
IBM RS/6000 44P Model 170 (http://www-03.ibm.com/systems/power/hardware/rs6000/entry/44p170/index.html)
It is Power 3 stuff. The current hardware is Power 7. Everything...