topic Re: P840 controller and cache battery connection in ProLiant Servers (ML,DL,SL)

P840 controller and cache battery connection

LehcimB — Thu, 11 Feb 2021 10:32:17 GMT

I pulled a P840 from a ProLiant G9 along with the cache battery backup. These are usually hooked up through the main board, so the problem is when you want to run them outside a ProLiant, the cables don't match so you can't directly connect the battery to the cache.

Is there a way to convert this or do I need a different battery?

https://imgur.com/a/ULlg3Hs

Re: P840 controller and cache battery connection

sudhirsingh — Tue, 16 Feb 2021 11:06:57 GMT

There is no such standard option or long cable to connect this 96W battery outside.

In Gen9 there is a dedicated port, behind the drive backplane where you place this battery and connect into the system board connector.

Re: P840 controller and cache battery connection

LehcimB — Tue, 16 Feb 2021 12:14:12 GMT

Thanks for the response. Just to be clear, the P840 has no battery backup option whatsoever if not installed in a Gen9 (or up)? Not even with a different battery?

Re: P840 controller and cache battery connection

sudhirsingh — Wed, 17 Feb 2021 01:34:54 GMT

This controller is supported with Gen9 only, and as per quickspecs 96W battery is only supported option available.