Unexpected Shutdown Dell Server Poweredge SC 1430

We have a Dell power edge server SC 1430 that was working fine until Thursday evening
Thursday evening the server shutdown and when I hit the power button it restarted and then it shut down again. The only error in the log was that an unexplained shutdown occurred at...

The server is plugged into a UPS with three other servers. We did move it to another ups and it still shutdown

It does shutdown in pairs of two. Two times in a row then it will stay up for 5 hours

Dell has done testing and found nothing. They suggest I buy a new power supply.  They tested the motherboard and fans and could not find an issue

Friday morning it again was shutdown. I restarted and it shutdown again after i logged into it


This morning (Saturday) in 11 minutes it rebooted 2 times and each of these times after I logged in it rebooted again. So it rebooted a total of 4 times.

Any ideas?
syarmushAsked:
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charlestasseCommented:
one thing that you can do, is to identify if the issue is OS related.

Boot the server to the Dell 32-Bit Diagnostics and run a continuous loop over the weekend or boot the server to a Linux Live CD OS and see if it shutsdown there.
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bahigeCommented:
Install or run Dell Open Manage Managed Node on the server.  You can get it by looking for the management drivers for the server from support.dell.com.  Open Manage will tell you if it detects a problem with the power supply or a fan, etc.
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charlestasseCommented:
The SC1430 has diagnostic indicator LED's
when the server shutsdown
Check the color of the power LED
Checkd the color of the 4 Status LED's

Review the hardware owners manual for information on the LED codes on page 15
http://support.dell.com/support/edocs/systems/sc1430/en/HOM/PDF/WH819A00.pdf
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D_VanteCommented:
update all the firmware on the server, especially the raid controller and backplane.  It could be a communication error between the windows storage controller and the RAID driver
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Head_GeekCommented:
I've experienced two different types of Power Supply random failures.
One machine would restart all by itself. The other would stay running until it was powered down and then it was anyone's guess if it would power up again (finally it refused to power up for good)
In both cases, replacing the power supply took care of the problem.
So my vote goes to replacing the power supply.
(...and while you have the case open, blow all the dust out too, especially from the CPU heatsinks ! :)  )

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syarmushAuthor Commented:
I am waiting for the power supply to show up. I am lucky I had an old HP server to reload this program. We updated the firmwear on the server included the RAID concroller. The server is up to date and its still happening
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charlestasseCommented:
when the server shutsdown
Check the color of the power LED
Checkd the color of the 4 Status LED's

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syarmushAuthor Commented:
Well I replaced the power supply  and removed the programs off this server that were important


The server is still shutting down. I noticed today I rebooted the server and did not login to it and the server is still up 8 hours.....not sure what this means?
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D_VanteCommented:
if it does not restart when no one is logged in then it is a service that uses the users credentials.  Remotely check the services when no one is logged in (print screen them).  Then login and print screen them again and log back out.   Then compare the screen shots, find potential culprits and disable them and login
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syarmushAuthor Commented:
I am going to book with server from a linux CD I have. This will tell me if its software
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