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IBM Server won't boot up, constalntly reboots

Posted on 2009-04-14
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Last Modified: 2012-05-06
This morning our IBM server rebooted itself.  After the reboot I logged in but before I could check any logs/event viewer it shut itself off.  Now all it does is constantly reboot itself.  The fan that goes loud when you first reboot (and would quiet down after a few seconds) stays loud.  My assumption is that it is the power supply.  When I first unplugged it and let it rest for 5 minutes, then plug it back in, I did get a full boot up.  But again the fan stayed loud so I tried a windows reboot to see if I could get the fan to quiet down.  That was a mistake because again now all it does is reboot itself. Does anyone else have any ideas?  I'm sure I have not given enough information so please let me know what information you might need to help.  I have an IBM service guy on his way but have no specific time when they'll be here so wanted to see if I could solve it in the meantime.

Thank you

Mr ween
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Question by:MrWeen
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Author Comment

by:MrWeen
ID: 24138427
Thought I should add, sometimes when I turn it on, it tries to power itself up and then powers down right away.  Then it'll try again and again and again.  So you can here the loud fan power up and down constantly.  Sometime it'll boot up and get to the "windows 2003 server" logo and then reboot.

Mrween
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Assisted Solution

by:dolomiti
dolomiti earned 1000 total points
ID: 24138566
hi,
how much memory have in the box ? The layout ?
Try to remove all memory and put the minimal quantity, see what happens.
Add step by step another memory tranche, and boot.

See in bios, error, and go, from main menu, to advance cfg, to see BMC logs
(different from first panel log).

bye
vic
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Author Comment

by:MrWeen
ID: 24138944
I will try to reset the memory right now.  As for the bios and its logs.  The server doesn't stay booted up long enough for me to check them.

MrWeen
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Expert Comment

by:dolomiti
ID: 24139050
hi,
my target was not to reset memory and logs, but discover,
in memory, if one of them is failed
( remove and put again not all together)

in bios log, go in advanced an see if there are entries in BMC ones.

bye
vic
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Assisted Solution

by:TekServer
TekServer earned 1000 total points
ID: 24139557
You've definitely got hardware problems.

Your problem is most likely the power supply, as you mentioned.  But before you start troubleshooting the power supply, check a couple of things first:  
(1) is the server under warranty?  If so, stop, and call for warranty support.
(2) visually check the capacitors on the motherboard.  See if any are swollen (not flat on top) or leaking.  (The capacitors look like little cans.)  If you see any bad caps, then you have a bad motherboard which will need to be replaced before you go further with t-shooting the power supply.
(3) do you have a power supply tester?  If so, testing the power output of the power supply may save you some time.

Does the server have redundant power supplies?  If so, try pulling them one at a time to see if the problem is resolved.

If not, try swapping the power supply temporarily (any power supply will do, even if it doesn't fit in the case, as long as it supplies sufficient power (watts)).  If that fixes the problem, you know it's the power supply.

In the unlikely event that you've gotten this far without finding the problem (i.e. P/S is good, no visible bad caps on MB), then your problem is most likely something non-visible on the motherboard, or perhaps some component attached to the motherboard (daughterboard, SCSI card, CPU, memory, etc.).  You might want to check with the IBM website and see if they have a downloadable set of bootable diagnostics (if you don't already have them) that you can download, burn to a CD, and boot from to test various hardware components.  If you can't keep the server up long enough to boot a CD and run diags, then about all you can do is trial and error:  pull components one at a time until you isolate the problem.

Hope this helps!
:)
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Accepted Solution

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MrWeen earned 0 total points
ID: 24167125
Sorry forgot to reply when it was fixed.  It was the power supply.  Got a new one and everything is fine now.  Thanks for the help.  I'm going to split to points between both who replied.

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Expert Comment

by:TekServer
ID: 24207803
Thanks!

Glad we could help.

:)
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