Dell Poweredge 2900 - Losing Boot settings witn PERC 6i

I have a PowerEdge 2900 Server that seems to lose its boot settings to boot from the PERC 6i Controller.  In the DRAC logs, it stated battery problems so I replaced the PERC 6i controller battery. I cleared the logs after replacing the battery.

Just for testing, I loaded ESXi 5.1 on it which loaded successfully, and I rebooted the server several times, turned the server off for 10 minutes and then booted it and all seemed well. I then turned the server off for a week, and came back, and the server doesn't know to boot from the RAID Controller.

The startup boot sequence goes through the normal process and sees the RAID Controller, and 1 array and 1 virtual drive, but then stops and says "no Boot Device Available"

Dell BIOS 2.7.0
Perc Controller BIOS 6.3.3.0002
Baseboard Management 2.50
Remote Access Controller 1.45 Build 9.01.16
Just for testing 3 drives with RAID 5. I have tried 2 drives mirrored RAID 1 as well.

Can't figure out why the system is losing the information to boot to the RAID Controller.
INCITE-TMAsked:
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Dawid FusekConnect With a Mentor Virtualization Expert, Sr B&R, Storage SpecialistCommented:
This is probably end of battery problem... but on motherboard mate, change it and it should be ok.
Motherboard battery maintain a BIOS settings, so also a boot order.

regards
NTShad0w
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INCITE-TMAuthor Commented:
Thanks, I will try that. IT looks like it is a CR-2032 battery that I can pick up locally.
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Dawid FusekVirtualization Expert, Sr B&R, Storage SpecialistCommented:
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INCITE-TMAuthor Commented:
I waited to respond as I wanted to make sure this resolved the issue. The motherboard battery was the problem. So now both the motherboard and PERC controller battery are new.  The server has been turned on and off and left off for a few days without any issues with booting up to the RAID Array.

Thanks for your fast response.
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Dawid FusekVirtualization Expert, Sr B&R, Storage SpecialistCommented:
good mate, PERC battery if it was older than 5 years should be also changed so you probably not change it for nothing.
BIOS battery should be changed once on 5-7 years, or if you discover clock or bios settings remember issues.

best regards
NTShad0w
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