server rebooting

I have an HP Proliant DL380 that was rebooting intermittently every day, sometimes every 15 - 20 minutes and some days it would run a good 24 hours before rebooting.  We replaced the raid controller battery, but this has not solved the problem.  I've formatted the drives and was attempting to rebuild the server, I suspected there may have been hard drive corruption, but I cant make it through the OS install without the server rebooting.  I've checked the iLO logs for any errors, but I only see this:
"POST Error: 1792-Drive Array Reports Valid Data Found in Array Accelerator"
which only indicates that the server shut down unexpectedly.  What else can I check?
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SappbrostsAsked:
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WiiredCommented:
If you cant keep it up doing a reload, its not software related
Try removing any and all peripheral cards and reboot again
Might be overheating? Check your fans
trying a different power supplly wouldn't hurt either

Also, did you recreate the array(s) or just tried to reload the OS? If you didnt, delte and recreate the array(s) as well

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firemanf29Commented:
I'd look into either memory, CPU or a motherboard problem in that order.  Try running the Server Diagnostics and see if it detects a problem anywhere.  Go to HP's site and download the latest version for your model of DL 380.    
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SappbrostsAuthor Commented:
Wiired, yes, I was 80% certain it was hardware before I wiped the drives, but the boss wanted it done heh.  There are currently no card in it, the fans are good, I'm thinking probable bad power supply as well after checking those logs more thoroughly.  I'll update after I get another power supply to test with.
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ChiefITCommented:
Upon loading the OS, you will have to press F6 to install third party raid drivers from HP, or you may end up in a repetative reboot. Proliant will not except Raid drivers that are Microsoft Generic drivers from an OS install disk.  

I would also like to recommend you download and flash the bios with the latest bios update.
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SappbrostsAuthor Commented:
raid drivers were installed with smart-start disk, also, the machine was rebooting before attempting to install the OS.
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ChiefITCommented:
BAD RAM or Power supply,

sounds like the above suggestions were already pointing you in that direction. So, I would like to monitor your progress.

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SappbrostsAuthor Commented:
yep, the RAM is new and has been tested on another server, like I said above, Im thinking power supply, I've got two on order, I'll update after I've done some testing with them.
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SappbrostsAuthor Commented:
power supplies were installed and its still rebooting, looks like it may be a bad raid controller, will be testing that soon
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ChiefITCommented:
Is this a SCSI raid controller and driver??

If SCSI, is it terminated?

If SCSI, have you considered flashing your bios and updating your Raid driver, (using Dell's third party driver if applicable to a dell system)?

This is a very plausible issue. Seen it before first hand.
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SappbrostsAuthor Commented:
nah, its SATA :-/
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ChiefITCommented:
Network, Video, and chipset drivers can cause the reboot:

I think you said this reboots prior to the Power On Self Test and then the bios memory testing. If so, disregard this message.

Network, Video, and chipset drivers can cause reboots. Try rebooting using safemode. That downloads the generic microsoft drivers.  To get into safemode, you should be able to use F8 at bootup.

If that doesn't work, try safemode with network support. Then, try safemode with VGA support.

If any of the safemode options work, download the chipset, video and nic drivers for your server/OS.

If this is rebooting prior to any interaction with the OS, open up the system and reseat your CPU chips and ram. Sometimes they are not well seated and can cause problems.

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SappbrostsAuthor Commented:
the ram was re-seated many times as we tried many different sticks, different speeds and sizes etc.  The thing still reboots after changing the power supplies and hard-drives, its gotta be mainboard.  Rather than replacing the board, we just a new fax server with a different machine.
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