https://community.hpe.com/t5/netservers/help-with-switch-4/m-p/2692315#M1941 Fpastor,<BR /><BR />Sorry, switch 3 is the switch that is needed on the system board for Config Valid. It is located above and to the right of the CPU carrier board. Save the ECU and BIOS diskettes on the previous link to your desktop and then double click on them to extract them to diskettes. Those diskettes will be bootable.. As for the CD-rom, it should be bannering on POST on the AIC78xx. Check cabling to the CD-Rom and controller if you don't see it. Default config has the CD-Rom as the top boot priority.<BR /><BR />Ciao,<BR />Greg Wed, 27 Mar 2002 22:40:09 GMT Greg Carlson 2002-03-27T22:40:09Z https://community.hpe.com/t5/netservers/help-with-switch-4/m-p/2692314#M1940 Well, I got the ECU, but what's switch 4 or how cand finf it? Any article about flashing the bios? <BR />*dont know why cant run the Navigator CD.<BR />Thanks in advance. Wed, 27 Mar 2002 22:11:34 GMT https://community.hpe.com/t5/netservers/help-with-switch-4/m-p/2692314#M1940 F.Pastor 2002-03-27T22:11:34Z https://community.hpe.com/t5/netservers/help-with-switch-4/m-p/2692315#M1941 Fpastor,<BR /><BR />Sorry, switch 3 is the switch that is needed on the system board for Config Valid. It is located above and to the right of the CPU carrier board. Save the ECU and BIOS diskettes on the previous link to your desktop and then double click on them to extract them to diskettes. Those diskettes will be bootable.. As for the CD-rom, it should be bannering on POST on the AIC78xx. Check cabling to the CD-Rom and controller if you don't see it. Default config has the CD-Rom as the top boot priority.<BR /><BR />Ciao,<BR />Greg Wed, 27 Mar 2002 22:40:09 GMT https://community.hpe.com/t5/netservers/help-with-switch-4/m-p/2692315#M1941 Greg Carlson 2002-03-27T22:40:09Z