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NVRAM CACHE CONTROLLER

I have a IBM Netfinity 5000 server.

It comes with an error :
NVRAM CACHE CONTROLLER NEEDS TO BE REPLACED.
PRESS F8 IF REPLACED OR PRESS F10 IF NOT REPLACED

To me it looks battery on that raid controller has failed.
but is it correct? where should i contact for replacement as this is out of service support.

Thanks.

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President
Top Expert 2010
Commented:
RAID controller batteries are surprisingly generic and only a few companies make them for everybody.  I do not have the IBM p/n for that controller, but you should be able to just examine the battery pack and determine a manufacturer's part number.   It will probably cost you 1/3rd of what you would pay IBM, if they would even sell it to you.

FYI - w/o the controller, write cache will be turned off, so you will see a performance hit ... but it is still OK to use.