LH3000 does not boot (video)

[Rafael Gonzalez]

I was reinstalling my HP LH3000r server.I deleted the RAID and created a new one. When I rebooted the system it did not see the CD-ROM so I tried to clear CMOS and reset the switch 5 on. Then I powered up the server and when it finished to boot I powered off again (following the installation guide)and reset the switch off. However when I powered it back on it aparently boots ok but I can see anything on the monitor. No error messages on the front panel, all lights green (power, disks, etc). Following someones case in this forum I powered it down for more than five minutes, removed any extra memory module, it does not have any PCI card....
I do not know what else I can do.
I tried clear CMOS again but no luck.
Any ideas???

[Greg Carlson · Accepted solution]

Rafael,

I wrote this in a previous post:

Troubleshooting No Video can be rather difficult.
First step--> unplug the server for 5 minutes to clear out the cache--> While it is unplugged flip switch 5 to ON to clear CMOS.. Also while powered off reseat CPU/VRM, Memory and system board.
If this resolves the no video you had CMOS/Bios corruption.. Next step would be to power off server, flip switch 5 back to OFF and then flash BIOS.
If this doesn't resolve it->

Check power supply LED's on back of the server. The LH3000 requires 2 minimum power supplies to run. Are they both green when you power on?
Remove all keyboard and mouse--> If still unresolved-->
Next Remove all PCI cards--> If still unresolved-->
Power server on and as soon as fans spin up unplug the front control panel from the power management board (If this resolves the issue you can run the server without it and will need to replace it. This solves a lot of no video issues on a LH3000) If that still gives no change cable the Front panel up and remove all memory--> if you get a beep code with no memory your likely looking at a CPU/VRM or system board as the culprit at that point.. If you have a dual CPU server it is ok to run it as a single CPU/VRM without a CPU terminator for short durations for troubleshooting purposes. If you are only at single CPU,VRM you can leave the primary slot open and have the CPU in CPU Slot 2,VRM 2.

Please post your results!

Good Luck..
Greg

[Rafael Gonzalez]

I have removed Processor, Memory, etc and put them back and it works. But I still have another problem. I cannot boot with the CD-ROM HP Netserver Navigator to start the installation. BIOS does detect it and it is set to start first with CD-ROM (startup sequence) but it comes up with "Operating System not found". It did work before and I could create a new array, update Bios and follow all several steps on the Netserver Navigator utility. However as soon as I created a new array and rebooted the system it no longer starts with CD-ROM.
Any clues????????
Thank you

[Terri Harris]

I would use the HP Instant Support Active Chat to expedite the troubleshooting on this LH3000. Go to this web site:
http://instantsupport.hp.com

or call Netserver technical support at:

(970) 635-1000, option 1, 1, then 2.