hp proliant ml 250 g4 wont restart while in windows.

server wont restart in windows.  gets to initializing stage of array controllers on slot 3 and hangs. power off the server at that point and then power it on and server starts fine every time.  you can use shutdown in windows and it will shutdown. but you must manually power it up.

hers whats been done. one scsi hard drive swapped out. one motherboard swapped out. one 641 array controller.  not much left at this point but the two power supplies, processor, and backplane and ram.  any ideas geniuses?  im hoping cuz hp support is baffled too.  
slinuxAsked:
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slinuxConnect With a Mentor Author Commented:
the solution was to replace the backplane the scsi drives were connected to. all is well after the replacement by hp.
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dekkarCommented:
So the server restarts OK... but upon booting... it hangs when trying to find the raid disks? Is it in a raid format? are u able to do some destructive tests ;) like move whatever is in slot 3 out... or to another slot...?

Sounds like a hardware problem doesnt it? It could be a problem with the disks...... You can upgrade the firmware on the disks and controller and see if this fixes it...

I did have to do this to one of our HP servers once.... I didnt think u could upgrade firmware on disks... but there u have it!!
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slinuxAuthor Commented:
it is a raid 5 config.  there are three hot swappable disks installed. have already tried disk swap but issue remains. firmware for disk, comtroller and motherboard is up to date.
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dekkarCommented:
hmmmmmmm weird one.... You have swapped the controller out.... so that take away the possibility of it being ram etc etc...

Do you have any other scsi devices attached? or any other devices attached? Tape drives etc etc.?

Are you able to isolate the ram? Test each stick individually?

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