Managing Core SQL Server 2008 R2 Technologies - Microsoft SQL Server 2008 R2 Administration - page 178

13. After successfully installing PowerPivot for SharePoint, you should verify
the installation.
14. Open the Web browser in administrator's privilege mode and enter
http://<machinename> with <machinename> being the name of the server
machine where you performed the PowerPivot for SharePoint install.
15. You should see a link to the PowerPivot Gallery on the left side of the page, as
shown in the following screenshot:
16. Next, launch the SharePoint Central Administration page from Start | All |
Programs | Microsoft SharePoint 2010 Products | SharePoint 2010 Central
Administration.
17. Click on the Manage web applications link under the heading
Application Management.
18. In the Web Applications General Settings dialog, navigate to the value Maximum
upload size. For this recipe, let us choose the value 3192 MB.
The default value for Maximum Upload size
is set to 50MB, for ideal content deployment
change the upload size to a minimum 3192MB.
19. Navigate back to SharePoint Central Administration | Application Management |
Manage Service Applications.