SQL Server 2012 PowerPivot on SharePoint 2010

Hi, quick question:

Is there anyway to have the SQL Server PowerPivot instance running on a SQL server rather a SharePoint server when we are using a SharePoint 2010 farm?  I know with SharePoint 2013 that is perfectly viable as we can specify the PowerPivot server in the excel services options - and that server doesn't even have to be a farm member.

Is this possible at all, or the SQL server PowerPivot instance in SharePoint 2010 must run on a SharePoint server? If it's possible, can you please describe in a nutshell the required process?

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SharePoint Consultant
MCSA Windows Server 2008
MCTS SharePoint 2010, Configuring